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[mirror_ubuntu-bionic-kernel.git] / tools / testing / selftests / bpf / test_verifier.c
1 /*
2 * Testsuite for eBPF verifier
3 *
4 * Copyright (c) 2014 PLUMgrid, http://plumgrid.com
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of version 2 of the GNU General Public
8 * License as published by the Free Software Foundation.
9 */
10
11 #include <endian.h>
12 #include <asm/types.h>
13 #include <linux/types.h>
14 #include <stdint.h>
15 #include <stdio.h>
16 #include <stdlib.h>
17 #include <unistd.h>
18 #include <errno.h>
19 #include <string.h>
20 #include <stddef.h>
21 #include <stdbool.h>
22 #include <sched.h>
23
24 #include <sys/capability.h>
25 #include <sys/resource.h>
26
27 #include <linux/unistd.h>
28 #include <linux/filter.h>
29 #include <linux/bpf_perf_event.h>
30 #include <linux/bpf.h>
31
32 #include <bpf/bpf.h>
33
34 #ifdef HAVE_GENHDR
35 # include "autoconf.h"
36 #else
37 # if defined(__i386) || defined(__x86_64) || defined(__s390x__) || defined(__aarch64__)
38 # define CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS 1
39 # endif
40 #endif
41
42 #include "../../../include/linux/filter.h"
43
44 #ifndef ARRAY_SIZE
45 # define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
46 #endif
47
48 #define MAX_INSNS 512
49 #define MAX_FIXUPS 8
50 #define MAX_NR_MAPS 4
51
52 #define F_NEEDS_EFFICIENT_UNALIGNED_ACCESS (1 << 0)
53 #define F_LOAD_WITH_STRICT_ALIGNMENT (1 << 1)
54
55 struct bpf_test {
56 const char *descr;
57 struct bpf_insn insns[MAX_INSNS];
58 int fixup_map1[MAX_FIXUPS];
59 int fixup_map2[MAX_FIXUPS];
60 int fixup_prog[MAX_FIXUPS];
61 int fixup_map_in_map[MAX_FIXUPS];
62 const char *errstr;
63 const char *errstr_unpriv;
64 enum {
65 UNDEF,
66 ACCEPT,
67 REJECT
68 } result, result_unpriv;
69 enum bpf_prog_type prog_type;
70 uint8_t flags;
71 };
72
73 /* Note we want this to be 64 bit aligned so that the end of our array is
74 * actually the end of the structure.
75 */
76 #define MAX_ENTRIES 11
77
78 struct test_val {
79 unsigned int index;
80 int foo[MAX_ENTRIES];
81 };
82
83 static struct bpf_test tests[] = {
84 {
85 "add+sub+mul",
86 .insns = {
87 BPF_MOV64_IMM(BPF_REG_1, 1),
88 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 2),
89 BPF_MOV64_IMM(BPF_REG_2, 3),
90 BPF_ALU64_REG(BPF_SUB, BPF_REG_1, BPF_REG_2),
91 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -1),
92 BPF_ALU64_IMM(BPF_MUL, BPF_REG_1, 3),
93 BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
94 BPF_EXIT_INSN(),
95 },
96 .result = ACCEPT,
97 },
98 {
99 "unreachable",
100 .insns = {
101 BPF_EXIT_INSN(),
102 BPF_EXIT_INSN(),
103 },
104 .errstr = "unreachable",
105 .result = REJECT,
106 },
107 {
108 "unreachable2",
109 .insns = {
110 BPF_JMP_IMM(BPF_JA, 0, 0, 1),
111 BPF_JMP_IMM(BPF_JA, 0, 0, 0),
112 BPF_EXIT_INSN(),
113 },
114 .errstr = "unreachable",
115 .result = REJECT,
116 },
117 {
118 "out of range jump",
119 .insns = {
120 BPF_JMP_IMM(BPF_JA, 0, 0, 1),
121 BPF_EXIT_INSN(),
122 },
123 .errstr = "jump out of range",
124 .result = REJECT,
125 },
126 {
127 "out of range jump2",
128 .insns = {
129 BPF_JMP_IMM(BPF_JA, 0, 0, -2),
130 BPF_EXIT_INSN(),
131 },
132 .errstr = "jump out of range",
133 .result = REJECT,
134 },
135 {
136 "test1 ld_imm64",
137 .insns = {
138 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1),
139 BPF_LD_IMM64(BPF_REG_0, 0),
140 BPF_LD_IMM64(BPF_REG_0, 0),
141 BPF_LD_IMM64(BPF_REG_0, 1),
142 BPF_LD_IMM64(BPF_REG_0, 1),
143 BPF_MOV64_IMM(BPF_REG_0, 2),
144 BPF_EXIT_INSN(),
145 },
146 .errstr = "invalid BPF_LD_IMM insn",
147 .errstr_unpriv = "R1 pointer comparison",
148 .result = REJECT,
149 },
150 {
151 "test2 ld_imm64",
152 .insns = {
153 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1),
154 BPF_LD_IMM64(BPF_REG_0, 0),
155 BPF_LD_IMM64(BPF_REG_0, 0),
156 BPF_LD_IMM64(BPF_REG_0, 1),
157 BPF_LD_IMM64(BPF_REG_0, 1),
158 BPF_EXIT_INSN(),
159 },
160 .errstr = "invalid BPF_LD_IMM insn",
161 .errstr_unpriv = "R1 pointer comparison",
162 .result = REJECT,
163 },
164 {
165 "test3 ld_imm64",
166 .insns = {
167 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1),
168 BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 0),
169 BPF_LD_IMM64(BPF_REG_0, 0),
170 BPF_LD_IMM64(BPF_REG_0, 0),
171 BPF_LD_IMM64(BPF_REG_0, 1),
172 BPF_LD_IMM64(BPF_REG_0, 1),
173 BPF_EXIT_INSN(),
174 },
175 .errstr = "invalid bpf_ld_imm64 insn",
176 .result = REJECT,
177 },
178 {
179 "test4 ld_imm64",
180 .insns = {
181 BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 0),
182 BPF_EXIT_INSN(),
183 },
184 .errstr = "invalid bpf_ld_imm64 insn",
185 .result = REJECT,
186 },
187 {
188 "test5 ld_imm64",
189 .insns = {
190 BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 0),
191 },
192 .errstr = "invalid bpf_ld_imm64 insn",
193 .result = REJECT,
194 },
195 {
196 "test6 ld_imm64",
197 .insns = {
198 BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 0),
199 BPF_RAW_INSN(0, 0, 0, 0, 0),
200 BPF_EXIT_INSN(),
201 },
202 .result = ACCEPT,
203 },
204 {
205 "test7 ld_imm64",
206 .insns = {
207 BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 1),
208 BPF_RAW_INSN(0, 0, 0, 0, 1),
209 BPF_EXIT_INSN(),
210 },
211 .result = ACCEPT,
212 },
213 {
214 "test8 ld_imm64",
215 .insns = {
216 BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 1, 1),
217 BPF_RAW_INSN(0, 0, 0, 0, 1),
218 BPF_EXIT_INSN(),
219 },
220 .errstr = "uses reserved fields",
221 .result = REJECT,
222 },
223 {
224 "test9 ld_imm64",
225 .insns = {
226 BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 1),
227 BPF_RAW_INSN(0, 0, 0, 1, 1),
228 BPF_EXIT_INSN(),
229 },
230 .errstr = "invalid bpf_ld_imm64 insn",
231 .result = REJECT,
232 },
233 {
234 "test10 ld_imm64",
235 .insns = {
236 BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 1),
237 BPF_RAW_INSN(0, BPF_REG_1, 0, 0, 1),
238 BPF_EXIT_INSN(),
239 },
240 .errstr = "invalid bpf_ld_imm64 insn",
241 .result = REJECT,
242 },
243 {
244 "test11 ld_imm64",
245 .insns = {
246 BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 1),
247 BPF_RAW_INSN(0, 0, BPF_REG_1, 0, 1),
248 BPF_EXIT_INSN(),
249 },
250 .errstr = "invalid bpf_ld_imm64 insn",
251 .result = REJECT,
252 },
253 {
254 "test12 ld_imm64",
255 .insns = {
256 BPF_MOV64_IMM(BPF_REG_1, 0),
257 BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, BPF_REG_1, 0, 1),
258 BPF_RAW_INSN(0, 0, 0, 0, 1),
259 BPF_EXIT_INSN(),
260 },
261 .errstr = "not pointing to valid bpf_map",
262 .result = REJECT,
263 },
264 {
265 "test13 ld_imm64",
266 .insns = {
267 BPF_MOV64_IMM(BPF_REG_1, 0),
268 BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, BPF_REG_1, 0, 1),
269 BPF_RAW_INSN(0, 0, BPF_REG_1, 0, 1),
270 BPF_EXIT_INSN(),
271 },
272 .errstr = "invalid bpf_ld_imm64 insn",
273 .result = REJECT,
274 },
275 {
276 "no bpf_exit",
277 .insns = {
278 BPF_ALU64_REG(BPF_MOV, BPF_REG_0, BPF_REG_2),
279 },
280 .errstr = "jump out of range",
281 .result = REJECT,
282 },
283 {
284 "loop (back-edge)",
285 .insns = {
286 BPF_JMP_IMM(BPF_JA, 0, 0, -1),
287 BPF_EXIT_INSN(),
288 },
289 .errstr = "back-edge",
290 .result = REJECT,
291 },
292 {
293 "loop2 (back-edge)",
294 .insns = {
295 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
296 BPF_MOV64_REG(BPF_REG_2, BPF_REG_0),
297 BPF_MOV64_REG(BPF_REG_3, BPF_REG_0),
298 BPF_JMP_IMM(BPF_JA, 0, 0, -4),
299 BPF_EXIT_INSN(),
300 },
301 .errstr = "back-edge",
302 .result = REJECT,
303 },
304 {
305 "conditional loop",
306 .insns = {
307 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
308 BPF_MOV64_REG(BPF_REG_2, BPF_REG_0),
309 BPF_MOV64_REG(BPF_REG_3, BPF_REG_0),
310 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, -3),
311 BPF_EXIT_INSN(),
312 },
313 .errstr = "back-edge",
314 .result = REJECT,
315 },
316 {
317 "read uninitialized register",
318 .insns = {
319 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
320 BPF_EXIT_INSN(),
321 },
322 .errstr = "R2 !read_ok",
323 .result = REJECT,
324 },
325 {
326 "read invalid register",
327 .insns = {
328 BPF_MOV64_REG(BPF_REG_0, -1),
329 BPF_EXIT_INSN(),
330 },
331 .errstr = "R15 is invalid",
332 .result = REJECT,
333 },
334 {
335 "program doesn't init R0 before exit",
336 .insns = {
337 BPF_ALU64_REG(BPF_MOV, BPF_REG_2, BPF_REG_1),
338 BPF_EXIT_INSN(),
339 },
340 .errstr = "R0 !read_ok",
341 .result = REJECT,
342 },
343 {
344 "program doesn't init R0 before exit in all branches",
345 .insns = {
346 BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2),
347 BPF_MOV64_IMM(BPF_REG_0, 1),
348 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 2),
349 BPF_EXIT_INSN(),
350 },
351 .errstr = "R0 !read_ok",
352 .errstr_unpriv = "R1 pointer comparison",
353 .result = REJECT,
354 },
355 {
356 "stack out of bounds",
357 .insns = {
358 BPF_ST_MEM(BPF_DW, BPF_REG_10, 8, 0),
359 BPF_EXIT_INSN(),
360 },
361 .errstr = "invalid stack",
362 .result = REJECT,
363 },
364 {
365 "invalid call insn1",
366 .insns = {
367 BPF_RAW_INSN(BPF_JMP | BPF_CALL | BPF_X, 0, 0, 0, 0),
368 BPF_EXIT_INSN(),
369 },
370 .errstr = "BPF_CALL uses reserved",
371 .result = REJECT,
372 },
373 {
374 "invalid call insn2",
375 .insns = {
376 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 1, 0),
377 BPF_EXIT_INSN(),
378 },
379 .errstr = "BPF_CALL uses reserved",
380 .result = REJECT,
381 },
382 {
383 "invalid function call",
384 .insns = {
385 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 1234567),
386 BPF_EXIT_INSN(),
387 },
388 .errstr = "invalid func unknown#1234567",
389 .result = REJECT,
390 },
391 {
392 "uninitialized stack1",
393 .insns = {
394 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
395 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
396 BPF_LD_MAP_FD(BPF_REG_1, 0),
397 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
398 BPF_FUNC_map_lookup_elem),
399 BPF_EXIT_INSN(),
400 },
401 .fixup_map1 = { 2 },
402 .errstr = "invalid indirect read from stack",
403 .result = REJECT,
404 },
405 {
406 "uninitialized stack2",
407 .insns = {
408 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
409 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, -8),
410 BPF_EXIT_INSN(),
411 },
412 .errstr = "invalid read from stack",
413 .result = REJECT,
414 },
415 {
416 "invalid fp arithmetic",
417 /* If this gets ever changed, make sure JITs can deal with it. */
418 .insns = {
419 BPF_MOV64_IMM(BPF_REG_0, 0),
420 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
421 BPF_ALU64_IMM(BPF_SUB, BPF_REG_1, 8),
422 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0),
423 BPF_EXIT_INSN(),
424 },
425 .errstr_unpriv = "R1 subtraction from stack pointer",
426 .result_unpriv = REJECT,
427 .errstr = "R1 invalid mem access",
428 .result = REJECT,
429 },
430 {
431 "non-invalid fp arithmetic",
432 .insns = {
433 BPF_MOV64_IMM(BPF_REG_0, 0),
434 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8),
435 BPF_EXIT_INSN(),
436 },
437 .result = ACCEPT,
438 },
439 {
440 "invalid argument register",
441 .insns = {
442 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
443 BPF_FUNC_get_cgroup_classid),
444 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
445 BPF_FUNC_get_cgroup_classid),
446 BPF_EXIT_INSN(),
447 },
448 .errstr = "R1 !read_ok",
449 .result = REJECT,
450 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
451 },
452 {
453 "non-invalid argument register",
454 .insns = {
455 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_1),
456 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
457 BPF_FUNC_get_cgroup_classid),
458 BPF_ALU64_REG(BPF_MOV, BPF_REG_1, BPF_REG_6),
459 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
460 BPF_FUNC_get_cgroup_classid),
461 BPF_EXIT_INSN(),
462 },
463 .result = ACCEPT,
464 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
465 },
466 {
467 "check valid spill/fill",
468 .insns = {
469 /* spill R1(ctx) into stack */
470 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8),
471 /* fill it back into R2 */
472 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -8),
473 /* should be able to access R0 = *(R2 + 8) */
474 /* BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, 8), */
475 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
476 BPF_EXIT_INSN(),
477 },
478 .errstr_unpriv = "R0 leaks addr",
479 .result = ACCEPT,
480 .result_unpriv = REJECT,
481 },
482 {
483 "check valid spill/fill, skb mark",
484 .insns = {
485 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_1),
486 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_6, -8),
487 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8),
488 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0,
489 offsetof(struct __sk_buff, mark)),
490 BPF_EXIT_INSN(),
491 },
492 .result = ACCEPT,
493 .result_unpriv = ACCEPT,
494 },
495 {
496 "check corrupted spill/fill",
497 .insns = {
498 /* spill R1(ctx) into stack */
499 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8),
500 /* mess up with R1 pointer on stack */
501 BPF_ST_MEM(BPF_B, BPF_REG_10, -7, 0x23),
502 /* fill back into R0 should fail */
503 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8),
504 BPF_EXIT_INSN(),
505 },
506 .errstr_unpriv = "attempt to corrupt spilled",
507 .errstr = "corrupted spill",
508 .result = REJECT,
509 },
510 {
511 "invalid src register in STX",
512 .insns = {
513 BPF_STX_MEM(BPF_B, BPF_REG_10, -1, -1),
514 BPF_EXIT_INSN(),
515 },
516 .errstr = "R15 is invalid",
517 .result = REJECT,
518 },
519 {
520 "invalid dst register in STX",
521 .insns = {
522 BPF_STX_MEM(BPF_B, 14, BPF_REG_10, -1),
523 BPF_EXIT_INSN(),
524 },
525 .errstr = "R14 is invalid",
526 .result = REJECT,
527 },
528 {
529 "invalid dst register in ST",
530 .insns = {
531 BPF_ST_MEM(BPF_B, 14, -1, -1),
532 BPF_EXIT_INSN(),
533 },
534 .errstr = "R14 is invalid",
535 .result = REJECT,
536 },
537 {
538 "invalid src register in LDX",
539 .insns = {
540 BPF_LDX_MEM(BPF_B, BPF_REG_0, 12, 0),
541 BPF_EXIT_INSN(),
542 },
543 .errstr = "R12 is invalid",
544 .result = REJECT,
545 },
546 {
547 "invalid dst register in LDX",
548 .insns = {
549 BPF_LDX_MEM(BPF_B, 11, BPF_REG_1, 0),
550 BPF_EXIT_INSN(),
551 },
552 .errstr = "R11 is invalid",
553 .result = REJECT,
554 },
555 {
556 "junk insn",
557 .insns = {
558 BPF_RAW_INSN(0, 0, 0, 0, 0),
559 BPF_EXIT_INSN(),
560 },
561 .errstr = "invalid BPF_LD_IMM",
562 .result = REJECT,
563 },
564 {
565 "junk insn2",
566 .insns = {
567 BPF_RAW_INSN(1, 0, 0, 0, 0),
568 BPF_EXIT_INSN(),
569 },
570 .errstr = "BPF_LDX uses reserved fields",
571 .result = REJECT,
572 },
573 {
574 "junk insn3",
575 .insns = {
576 BPF_RAW_INSN(-1, 0, 0, 0, 0),
577 BPF_EXIT_INSN(),
578 },
579 .errstr = "invalid BPF_ALU opcode f0",
580 .result = REJECT,
581 },
582 {
583 "junk insn4",
584 .insns = {
585 BPF_RAW_INSN(-1, -1, -1, -1, -1),
586 BPF_EXIT_INSN(),
587 },
588 .errstr = "invalid BPF_ALU opcode f0",
589 .result = REJECT,
590 },
591 {
592 "junk insn5",
593 .insns = {
594 BPF_RAW_INSN(0x7f, -1, -1, -1, -1),
595 BPF_EXIT_INSN(),
596 },
597 .errstr = "BPF_ALU uses reserved fields",
598 .result = REJECT,
599 },
600 {
601 "misaligned read from stack",
602 .insns = {
603 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
604 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, -4),
605 BPF_EXIT_INSN(),
606 },
607 .errstr = "misaligned stack access",
608 .result = REJECT,
609 .flags = F_LOAD_WITH_STRICT_ALIGNMENT,
610 },
611 {
612 "invalid map_fd for function call",
613 .insns = {
614 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
615 BPF_ALU64_REG(BPF_MOV, BPF_REG_2, BPF_REG_10),
616 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
617 BPF_LD_MAP_FD(BPF_REG_1, 0),
618 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
619 BPF_FUNC_map_delete_elem),
620 BPF_EXIT_INSN(),
621 },
622 .errstr = "fd 0 is not pointing to valid bpf_map",
623 .result = REJECT,
624 },
625 {
626 "don't check return value before access",
627 .insns = {
628 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
629 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
630 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
631 BPF_LD_MAP_FD(BPF_REG_1, 0),
632 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
633 BPF_FUNC_map_lookup_elem),
634 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
635 BPF_EXIT_INSN(),
636 },
637 .fixup_map1 = { 3 },
638 .errstr = "R0 invalid mem access 'map_value_or_null'",
639 .result = REJECT,
640 },
641 {
642 "access memory with incorrect alignment",
643 .insns = {
644 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
645 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
646 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
647 BPF_LD_MAP_FD(BPF_REG_1, 0),
648 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
649 BPF_FUNC_map_lookup_elem),
650 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
651 BPF_ST_MEM(BPF_DW, BPF_REG_0, 4, 0),
652 BPF_EXIT_INSN(),
653 },
654 .fixup_map1 = { 3 },
655 .errstr = "misaligned value access",
656 .result = REJECT,
657 .flags = F_LOAD_WITH_STRICT_ALIGNMENT,
658 },
659 {
660 "sometimes access memory with incorrect alignment",
661 .insns = {
662 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
663 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
664 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
665 BPF_LD_MAP_FD(BPF_REG_1, 0),
666 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
667 BPF_FUNC_map_lookup_elem),
668 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2),
669 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
670 BPF_EXIT_INSN(),
671 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 1),
672 BPF_EXIT_INSN(),
673 },
674 .fixup_map1 = { 3 },
675 .errstr = "R0 invalid mem access",
676 .errstr_unpriv = "R0 leaks addr",
677 .result = REJECT,
678 .flags = F_LOAD_WITH_STRICT_ALIGNMENT,
679 },
680 {
681 "jump test 1",
682 .insns = {
683 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
684 BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -8),
685 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1),
686 BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 0),
687 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 1),
688 BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 1),
689 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 2, 1),
690 BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 2),
691 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 1),
692 BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 3),
693 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 4, 1),
694 BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 4),
695 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 5, 1),
696 BPF_ST_MEM(BPF_DW, BPF_REG_2, -32, 5),
697 BPF_MOV64_IMM(BPF_REG_0, 0),
698 BPF_EXIT_INSN(),
699 },
700 .errstr_unpriv = "R1 pointer comparison",
701 .result_unpriv = REJECT,
702 .result = ACCEPT,
703 },
704 {
705 "jump test 2",
706 .insns = {
707 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
708 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 2),
709 BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 0),
710 BPF_JMP_IMM(BPF_JA, 0, 0, 14),
711 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 2),
712 BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 0),
713 BPF_JMP_IMM(BPF_JA, 0, 0, 11),
714 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 2, 2),
715 BPF_ST_MEM(BPF_DW, BPF_REG_2, -32, 0),
716 BPF_JMP_IMM(BPF_JA, 0, 0, 8),
717 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 2),
718 BPF_ST_MEM(BPF_DW, BPF_REG_2, -40, 0),
719 BPF_JMP_IMM(BPF_JA, 0, 0, 5),
720 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 4, 2),
721 BPF_ST_MEM(BPF_DW, BPF_REG_2, -48, 0),
722 BPF_JMP_IMM(BPF_JA, 0, 0, 2),
723 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 5, 1),
724 BPF_ST_MEM(BPF_DW, BPF_REG_2, -56, 0),
725 BPF_MOV64_IMM(BPF_REG_0, 0),
726 BPF_EXIT_INSN(),
727 },
728 .errstr_unpriv = "R1 pointer comparison",
729 .result_unpriv = REJECT,
730 .result = ACCEPT,
731 },
732 {
733 "jump test 3",
734 .insns = {
735 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
736 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 3),
737 BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 0),
738 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
739 BPF_JMP_IMM(BPF_JA, 0, 0, 19),
740 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 3),
741 BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 0),
742 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16),
743 BPF_JMP_IMM(BPF_JA, 0, 0, 15),
744 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 2, 3),
745 BPF_ST_MEM(BPF_DW, BPF_REG_2, -32, 0),
746 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -32),
747 BPF_JMP_IMM(BPF_JA, 0, 0, 11),
748 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 3),
749 BPF_ST_MEM(BPF_DW, BPF_REG_2, -40, 0),
750 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -40),
751 BPF_JMP_IMM(BPF_JA, 0, 0, 7),
752 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 4, 3),
753 BPF_ST_MEM(BPF_DW, BPF_REG_2, -48, 0),
754 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -48),
755 BPF_JMP_IMM(BPF_JA, 0, 0, 3),
756 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 5, 0),
757 BPF_ST_MEM(BPF_DW, BPF_REG_2, -56, 0),
758 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -56),
759 BPF_LD_MAP_FD(BPF_REG_1, 0),
760 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
761 BPF_FUNC_map_delete_elem),
762 BPF_EXIT_INSN(),
763 },
764 .fixup_map1 = { 24 },
765 .errstr_unpriv = "R1 pointer comparison",
766 .result_unpriv = REJECT,
767 .result = ACCEPT,
768 },
769 {
770 "jump test 4",
771 .insns = {
772 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
773 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
774 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
775 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
776 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
777 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
778 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
779 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
780 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
781 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
782 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
783 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
784 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
785 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
786 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
787 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
788 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
789 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
790 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
791 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
792 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
793 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
794 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
795 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
796 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
797 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
798 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
799 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
800 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
801 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
802 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
803 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
804 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
805 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
806 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
807 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
808 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0),
809 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0),
810 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0),
811 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0),
812 BPF_MOV64_IMM(BPF_REG_0, 0),
813 BPF_EXIT_INSN(),
814 },
815 .errstr_unpriv = "R1 pointer comparison",
816 .result_unpriv = REJECT,
817 .result = ACCEPT,
818 },
819 {
820 "jump test 5",
821 .insns = {
822 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
823 BPF_MOV64_REG(BPF_REG_3, BPF_REG_2),
824 BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2),
825 BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8),
826 BPF_JMP_IMM(BPF_JA, 0, 0, 2),
827 BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8),
828 BPF_JMP_IMM(BPF_JA, 0, 0, 0),
829 BPF_MOV64_IMM(BPF_REG_0, 0),
830 BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2),
831 BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8),
832 BPF_JMP_IMM(BPF_JA, 0, 0, 2),
833 BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8),
834 BPF_JMP_IMM(BPF_JA, 0, 0, 0),
835 BPF_MOV64_IMM(BPF_REG_0, 0),
836 BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2),
837 BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8),
838 BPF_JMP_IMM(BPF_JA, 0, 0, 2),
839 BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8),
840 BPF_JMP_IMM(BPF_JA, 0, 0, 0),
841 BPF_MOV64_IMM(BPF_REG_0, 0),
842 BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2),
843 BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8),
844 BPF_JMP_IMM(BPF_JA, 0, 0, 2),
845 BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8),
846 BPF_JMP_IMM(BPF_JA, 0, 0, 0),
847 BPF_MOV64_IMM(BPF_REG_0, 0),
848 BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2),
849 BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8),
850 BPF_JMP_IMM(BPF_JA, 0, 0, 2),
851 BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8),
852 BPF_JMP_IMM(BPF_JA, 0, 0, 0),
853 BPF_MOV64_IMM(BPF_REG_0, 0),
854 BPF_EXIT_INSN(),
855 },
856 .errstr_unpriv = "R1 pointer comparison",
857 .result_unpriv = REJECT,
858 .result = ACCEPT,
859 },
860 {
861 "access skb fields ok",
862 .insns = {
863 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
864 offsetof(struct __sk_buff, len)),
865 BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1),
866 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
867 offsetof(struct __sk_buff, mark)),
868 BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1),
869 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
870 offsetof(struct __sk_buff, pkt_type)),
871 BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1),
872 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
873 offsetof(struct __sk_buff, queue_mapping)),
874 BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0),
875 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
876 offsetof(struct __sk_buff, protocol)),
877 BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0),
878 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
879 offsetof(struct __sk_buff, vlan_present)),
880 BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0),
881 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
882 offsetof(struct __sk_buff, vlan_tci)),
883 BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0),
884 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
885 offsetof(struct __sk_buff, napi_id)),
886 BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0),
887 BPF_EXIT_INSN(),
888 },
889 .result = ACCEPT,
890 },
891 {
892 "access skb fields bad1",
893 .insns = {
894 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -4),
895 BPF_EXIT_INSN(),
896 },
897 .errstr = "invalid bpf_context access",
898 .result = REJECT,
899 },
900 {
901 "access skb fields bad2",
902 .insns = {
903 BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 9),
904 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
905 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
906 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
907 BPF_LD_MAP_FD(BPF_REG_1, 0),
908 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
909 BPF_FUNC_map_lookup_elem),
910 BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
911 BPF_EXIT_INSN(),
912 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
913 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
914 offsetof(struct __sk_buff, pkt_type)),
915 BPF_EXIT_INSN(),
916 },
917 .fixup_map1 = { 4 },
918 .errstr = "different pointers",
919 .errstr_unpriv = "R1 pointer comparison",
920 .result = REJECT,
921 },
922 {
923 "access skb fields bad3",
924 .insns = {
925 BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2),
926 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
927 offsetof(struct __sk_buff, pkt_type)),
928 BPF_EXIT_INSN(),
929 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
930 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
931 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
932 BPF_LD_MAP_FD(BPF_REG_1, 0),
933 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
934 BPF_FUNC_map_lookup_elem),
935 BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
936 BPF_EXIT_INSN(),
937 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
938 BPF_JMP_IMM(BPF_JA, 0, 0, -12),
939 },
940 .fixup_map1 = { 6 },
941 .errstr = "different pointers",
942 .errstr_unpriv = "R1 pointer comparison",
943 .result = REJECT,
944 },
945 {
946 "access skb fields bad4",
947 .insns = {
948 BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 3),
949 BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_1,
950 offsetof(struct __sk_buff, len)),
951 BPF_MOV64_IMM(BPF_REG_0, 0),
952 BPF_EXIT_INSN(),
953 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
954 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
955 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
956 BPF_LD_MAP_FD(BPF_REG_1, 0),
957 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
958 BPF_FUNC_map_lookup_elem),
959 BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
960 BPF_EXIT_INSN(),
961 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
962 BPF_JMP_IMM(BPF_JA, 0, 0, -13),
963 },
964 .fixup_map1 = { 7 },
965 .errstr = "different pointers",
966 .errstr_unpriv = "R1 pointer comparison",
967 .result = REJECT,
968 },
969 {
970 "invalid access __sk_buff family",
971 .insns = {
972 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
973 offsetof(struct __sk_buff, family)),
974 BPF_EXIT_INSN(),
975 },
976 .errstr = "invalid bpf_context access",
977 .result = REJECT,
978 },
979 {
980 "invalid access __sk_buff remote_ip4",
981 .insns = {
982 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
983 offsetof(struct __sk_buff, remote_ip4)),
984 BPF_EXIT_INSN(),
985 },
986 .errstr = "invalid bpf_context access",
987 .result = REJECT,
988 },
989 {
990 "invalid access __sk_buff local_ip4",
991 .insns = {
992 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
993 offsetof(struct __sk_buff, local_ip4)),
994 BPF_EXIT_INSN(),
995 },
996 .errstr = "invalid bpf_context access",
997 .result = REJECT,
998 },
999 {
1000 "invalid access __sk_buff remote_ip6",
1001 .insns = {
1002 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1003 offsetof(struct __sk_buff, remote_ip6)),
1004 BPF_EXIT_INSN(),
1005 },
1006 .errstr = "invalid bpf_context access",
1007 .result = REJECT,
1008 },
1009 {
1010 "invalid access __sk_buff local_ip6",
1011 .insns = {
1012 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1013 offsetof(struct __sk_buff, local_ip6)),
1014 BPF_EXIT_INSN(),
1015 },
1016 .errstr = "invalid bpf_context access",
1017 .result = REJECT,
1018 },
1019 {
1020 "invalid access __sk_buff remote_port",
1021 .insns = {
1022 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1023 offsetof(struct __sk_buff, remote_port)),
1024 BPF_EXIT_INSN(),
1025 },
1026 .errstr = "invalid bpf_context access",
1027 .result = REJECT,
1028 },
1029 {
1030 "invalid access __sk_buff remote_port",
1031 .insns = {
1032 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1033 offsetof(struct __sk_buff, local_port)),
1034 BPF_EXIT_INSN(),
1035 },
1036 .errstr = "invalid bpf_context access",
1037 .result = REJECT,
1038 },
1039 {
1040 "valid access __sk_buff family",
1041 .insns = {
1042 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1043 offsetof(struct __sk_buff, family)),
1044 BPF_EXIT_INSN(),
1045 },
1046 .result = ACCEPT,
1047 .prog_type = BPF_PROG_TYPE_SK_SKB,
1048 },
1049 {
1050 "valid access __sk_buff remote_ip4",
1051 .insns = {
1052 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1053 offsetof(struct __sk_buff, remote_ip4)),
1054 BPF_EXIT_INSN(),
1055 },
1056 .result = ACCEPT,
1057 .prog_type = BPF_PROG_TYPE_SK_SKB,
1058 },
1059 {
1060 "valid access __sk_buff local_ip4",
1061 .insns = {
1062 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1063 offsetof(struct __sk_buff, local_ip4)),
1064 BPF_EXIT_INSN(),
1065 },
1066 .result = ACCEPT,
1067 .prog_type = BPF_PROG_TYPE_SK_SKB,
1068 },
1069 {
1070 "valid access __sk_buff remote_ip6",
1071 .insns = {
1072 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1073 offsetof(struct __sk_buff, remote_ip6[0])),
1074 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1075 offsetof(struct __sk_buff, remote_ip6[1])),
1076 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1077 offsetof(struct __sk_buff, remote_ip6[2])),
1078 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1079 offsetof(struct __sk_buff, remote_ip6[3])),
1080 BPF_EXIT_INSN(),
1081 },
1082 .result = ACCEPT,
1083 .prog_type = BPF_PROG_TYPE_SK_SKB,
1084 },
1085 {
1086 "valid access __sk_buff local_ip6",
1087 .insns = {
1088 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1089 offsetof(struct __sk_buff, local_ip6[0])),
1090 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1091 offsetof(struct __sk_buff, local_ip6[1])),
1092 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1093 offsetof(struct __sk_buff, local_ip6[2])),
1094 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1095 offsetof(struct __sk_buff, local_ip6[3])),
1096 BPF_EXIT_INSN(),
1097 },
1098 .result = ACCEPT,
1099 .prog_type = BPF_PROG_TYPE_SK_SKB,
1100 },
1101 {
1102 "valid access __sk_buff remote_port",
1103 .insns = {
1104 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1105 offsetof(struct __sk_buff, remote_port)),
1106 BPF_EXIT_INSN(),
1107 },
1108 .result = ACCEPT,
1109 .prog_type = BPF_PROG_TYPE_SK_SKB,
1110 },
1111 {
1112 "valid access __sk_buff remote_port",
1113 .insns = {
1114 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1115 offsetof(struct __sk_buff, local_port)),
1116 BPF_EXIT_INSN(),
1117 },
1118 .result = ACCEPT,
1119 .prog_type = BPF_PROG_TYPE_SK_SKB,
1120 },
1121 {
1122 "invalid access of tc_classid for SK_SKB",
1123 .insns = {
1124 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1125 offsetof(struct __sk_buff, tc_classid)),
1126 BPF_EXIT_INSN(),
1127 },
1128 .result = REJECT,
1129 .prog_type = BPF_PROG_TYPE_SK_SKB,
1130 .errstr = "invalid bpf_context access",
1131 },
1132 {
1133 "invalid access of skb->mark for SK_SKB",
1134 .insns = {
1135 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1136 offsetof(struct __sk_buff, mark)),
1137 BPF_EXIT_INSN(),
1138 },
1139 .result = REJECT,
1140 .prog_type = BPF_PROG_TYPE_SK_SKB,
1141 .errstr = "invalid bpf_context access",
1142 },
1143 {
1144 "check skb->mark is not writeable by SK_SKB",
1145 .insns = {
1146 BPF_MOV64_IMM(BPF_REG_0, 0),
1147 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
1148 offsetof(struct __sk_buff, mark)),
1149 BPF_EXIT_INSN(),
1150 },
1151 .result = REJECT,
1152 .prog_type = BPF_PROG_TYPE_SK_SKB,
1153 .errstr = "invalid bpf_context access",
1154 },
1155 {
1156 "check skb->tc_index is writeable by SK_SKB",
1157 .insns = {
1158 BPF_MOV64_IMM(BPF_REG_0, 0),
1159 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
1160 offsetof(struct __sk_buff, tc_index)),
1161 BPF_EXIT_INSN(),
1162 },
1163 .result = ACCEPT,
1164 .prog_type = BPF_PROG_TYPE_SK_SKB,
1165 },
1166 {
1167 "check skb->priority is writeable by SK_SKB",
1168 .insns = {
1169 BPF_MOV64_IMM(BPF_REG_0, 0),
1170 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
1171 offsetof(struct __sk_buff, priority)),
1172 BPF_EXIT_INSN(),
1173 },
1174 .result = ACCEPT,
1175 .prog_type = BPF_PROG_TYPE_SK_SKB,
1176 },
1177 {
1178 "direct packet read for SK_SKB",
1179 .insns = {
1180 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
1181 offsetof(struct __sk_buff, data)),
1182 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
1183 offsetof(struct __sk_buff, data_end)),
1184 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
1185 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
1186 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
1187 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
1188 BPF_MOV64_IMM(BPF_REG_0, 0),
1189 BPF_EXIT_INSN(),
1190 },
1191 .result = ACCEPT,
1192 .prog_type = BPF_PROG_TYPE_SK_SKB,
1193 },
1194 {
1195 "direct packet write for SK_SKB",
1196 .insns = {
1197 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
1198 offsetof(struct __sk_buff, data)),
1199 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
1200 offsetof(struct __sk_buff, data_end)),
1201 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
1202 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
1203 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
1204 BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0),
1205 BPF_MOV64_IMM(BPF_REG_0, 0),
1206 BPF_EXIT_INSN(),
1207 },
1208 .result = ACCEPT,
1209 .prog_type = BPF_PROG_TYPE_SK_SKB,
1210 },
1211 {
1212 "overlapping checks for direct packet access SK_SKB",
1213 .insns = {
1214 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
1215 offsetof(struct __sk_buff, data)),
1216 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
1217 offsetof(struct __sk_buff, data_end)),
1218 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
1219 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
1220 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 4),
1221 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
1222 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 6),
1223 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 1),
1224 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_2, 6),
1225 BPF_MOV64_IMM(BPF_REG_0, 0),
1226 BPF_EXIT_INSN(),
1227 },
1228 .result = ACCEPT,
1229 .prog_type = BPF_PROG_TYPE_SK_SKB,
1230 },
1231 {
1232 "check skb->mark is not writeable by sockets",
1233 .insns = {
1234 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1,
1235 offsetof(struct __sk_buff, mark)),
1236 BPF_EXIT_INSN(),
1237 },
1238 .errstr = "invalid bpf_context access",
1239 .errstr_unpriv = "R1 leaks addr",
1240 .result = REJECT,
1241 },
1242 {
1243 "check skb->tc_index is not writeable by sockets",
1244 .insns = {
1245 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1,
1246 offsetof(struct __sk_buff, tc_index)),
1247 BPF_EXIT_INSN(),
1248 },
1249 .errstr = "invalid bpf_context access",
1250 .errstr_unpriv = "R1 leaks addr",
1251 .result = REJECT,
1252 },
1253 {
1254 "check cb access: byte",
1255 .insns = {
1256 BPF_MOV64_IMM(BPF_REG_0, 0),
1257 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
1258 offsetof(struct __sk_buff, cb[0])),
1259 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
1260 offsetof(struct __sk_buff, cb[0]) + 1),
1261 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
1262 offsetof(struct __sk_buff, cb[0]) + 2),
1263 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
1264 offsetof(struct __sk_buff, cb[0]) + 3),
1265 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
1266 offsetof(struct __sk_buff, cb[1])),
1267 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
1268 offsetof(struct __sk_buff, cb[1]) + 1),
1269 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
1270 offsetof(struct __sk_buff, cb[1]) + 2),
1271 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
1272 offsetof(struct __sk_buff, cb[1]) + 3),
1273 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
1274 offsetof(struct __sk_buff, cb[2])),
1275 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
1276 offsetof(struct __sk_buff, cb[2]) + 1),
1277 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
1278 offsetof(struct __sk_buff, cb[2]) + 2),
1279 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
1280 offsetof(struct __sk_buff, cb[2]) + 3),
1281 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
1282 offsetof(struct __sk_buff, cb[3])),
1283 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
1284 offsetof(struct __sk_buff, cb[3]) + 1),
1285 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
1286 offsetof(struct __sk_buff, cb[3]) + 2),
1287 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
1288 offsetof(struct __sk_buff, cb[3]) + 3),
1289 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
1290 offsetof(struct __sk_buff, cb[4])),
1291 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
1292 offsetof(struct __sk_buff, cb[4]) + 1),
1293 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
1294 offsetof(struct __sk_buff, cb[4]) + 2),
1295 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
1296 offsetof(struct __sk_buff, cb[4]) + 3),
1297 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
1298 offsetof(struct __sk_buff, cb[0])),
1299 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
1300 offsetof(struct __sk_buff, cb[0]) + 1),
1301 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
1302 offsetof(struct __sk_buff, cb[0]) + 2),
1303 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
1304 offsetof(struct __sk_buff, cb[0]) + 3),
1305 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
1306 offsetof(struct __sk_buff, cb[1])),
1307 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
1308 offsetof(struct __sk_buff, cb[1]) + 1),
1309 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
1310 offsetof(struct __sk_buff, cb[1]) + 2),
1311 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
1312 offsetof(struct __sk_buff, cb[1]) + 3),
1313 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
1314 offsetof(struct __sk_buff, cb[2])),
1315 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
1316 offsetof(struct __sk_buff, cb[2]) + 1),
1317 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
1318 offsetof(struct __sk_buff, cb[2]) + 2),
1319 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
1320 offsetof(struct __sk_buff, cb[2]) + 3),
1321 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
1322 offsetof(struct __sk_buff, cb[3])),
1323 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
1324 offsetof(struct __sk_buff, cb[3]) + 1),
1325 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
1326 offsetof(struct __sk_buff, cb[3]) + 2),
1327 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
1328 offsetof(struct __sk_buff, cb[3]) + 3),
1329 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
1330 offsetof(struct __sk_buff, cb[4])),
1331 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
1332 offsetof(struct __sk_buff, cb[4]) + 1),
1333 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
1334 offsetof(struct __sk_buff, cb[4]) + 2),
1335 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
1336 offsetof(struct __sk_buff, cb[4]) + 3),
1337 BPF_EXIT_INSN(),
1338 },
1339 .result = ACCEPT,
1340 },
1341 {
1342 "__sk_buff->hash, offset 0, byte store not permitted",
1343 .insns = {
1344 BPF_MOV64_IMM(BPF_REG_0, 0),
1345 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
1346 offsetof(struct __sk_buff, hash)),
1347 BPF_EXIT_INSN(),
1348 },
1349 .errstr = "invalid bpf_context access",
1350 .result = REJECT,
1351 },
1352 {
1353 "__sk_buff->tc_index, offset 3, byte store not permitted",
1354 .insns = {
1355 BPF_MOV64_IMM(BPF_REG_0, 0),
1356 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
1357 offsetof(struct __sk_buff, tc_index) + 3),
1358 BPF_EXIT_INSN(),
1359 },
1360 .errstr = "invalid bpf_context access",
1361 .result = REJECT,
1362 },
1363 {
1364 "check skb->hash byte load permitted",
1365 .insns = {
1366 BPF_MOV64_IMM(BPF_REG_0, 0),
1367 #if __BYTE_ORDER == __LITTLE_ENDIAN
1368 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
1369 offsetof(struct __sk_buff, hash)),
1370 #else
1371 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
1372 offsetof(struct __sk_buff, hash) + 3),
1373 #endif
1374 BPF_EXIT_INSN(),
1375 },
1376 .result = ACCEPT,
1377 },
1378 {
1379 "check skb->hash byte load not permitted 1",
1380 .insns = {
1381 BPF_MOV64_IMM(BPF_REG_0, 0),
1382 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
1383 offsetof(struct __sk_buff, hash) + 1),
1384 BPF_EXIT_INSN(),
1385 },
1386 .errstr = "invalid bpf_context access",
1387 .result = REJECT,
1388 },
1389 {
1390 "check skb->hash byte load not permitted 2",
1391 .insns = {
1392 BPF_MOV64_IMM(BPF_REG_0, 0),
1393 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
1394 offsetof(struct __sk_buff, hash) + 2),
1395 BPF_EXIT_INSN(),
1396 },
1397 .errstr = "invalid bpf_context access",
1398 .result = REJECT,
1399 },
1400 {
1401 "check skb->hash byte load not permitted 3",
1402 .insns = {
1403 BPF_MOV64_IMM(BPF_REG_0, 0),
1404 #if __BYTE_ORDER == __LITTLE_ENDIAN
1405 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
1406 offsetof(struct __sk_buff, hash) + 3),
1407 #else
1408 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
1409 offsetof(struct __sk_buff, hash)),
1410 #endif
1411 BPF_EXIT_INSN(),
1412 },
1413 .errstr = "invalid bpf_context access",
1414 .result = REJECT,
1415 },
1416 {
1417 "check cb access: byte, wrong type",
1418 .insns = {
1419 BPF_MOV64_IMM(BPF_REG_0, 0),
1420 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
1421 offsetof(struct __sk_buff, cb[0])),
1422 BPF_EXIT_INSN(),
1423 },
1424 .errstr = "invalid bpf_context access",
1425 .result = REJECT,
1426 .prog_type = BPF_PROG_TYPE_CGROUP_SOCK,
1427 },
1428 {
1429 "check cb access: half",
1430 .insns = {
1431 BPF_MOV64_IMM(BPF_REG_0, 0),
1432 BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
1433 offsetof(struct __sk_buff, cb[0])),
1434 BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
1435 offsetof(struct __sk_buff, cb[0]) + 2),
1436 BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
1437 offsetof(struct __sk_buff, cb[1])),
1438 BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
1439 offsetof(struct __sk_buff, cb[1]) + 2),
1440 BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
1441 offsetof(struct __sk_buff, cb[2])),
1442 BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
1443 offsetof(struct __sk_buff, cb[2]) + 2),
1444 BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
1445 offsetof(struct __sk_buff, cb[3])),
1446 BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
1447 offsetof(struct __sk_buff, cb[3]) + 2),
1448 BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
1449 offsetof(struct __sk_buff, cb[4])),
1450 BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
1451 offsetof(struct __sk_buff, cb[4]) + 2),
1452 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
1453 offsetof(struct __sk_buff, cb[0])),
1454 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
1455 offsetof(struct __sk_buff, cb[0]) + 2),
1456 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
1457 offsetof(struct __sk_buff, cb[1])),
1458 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
1459 offsetof(struct __sk_buff, cb[1]) + 2),
1460 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
1461 offsetof(struct __sk_buff, cb[2])),
1462 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
1463 offsetof(struct __sk_buff, cb[2]) + 2),
1464 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
1465 offsetof(struct __sk_buff, cb[3])),
1466 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
1467 offsetof(struct __sk_buff, cb[3]) + 2),
1468 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
1469 offsetof(struct __sk_buff, cb[4])),
1470 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
1471 offsetof(struct __sk_buff, cb[4]) + 2),
1472 BPF_EXIT_INSN(),
1473 },
1474 .result = ACCEPT,
1475 },
1476 {
1477 "check cb access: half, unaligned",
1478 .insns = {
1479 BPF_MOV64_IMM(BPF_REG_0, 0),
1480 BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
1481 offsetof(struct __sk_buff, cb[0]) + 1),
1482 BPF_EXIT_INSN(),
1483 },
1484 .errstr = "misaligned context access",
1485 .result = REJECT,
1486 .flags = F_LOAD_WITH_STRICT_ALIGNMENT,
1487 },
1488 {
1489 "check __sk_buff->hash, offset 0, half store not permitted",
1490 .insns = {
1491 BPF_MOV64_IMM(BPF_REG_0, 0),
1492 BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
1493 offsetof(struct __sk_buff, hash)),
1494 BPF_EXIT_INSN(),
1495 },
1496 .errstr = "invalid bpf_context access",
1497 .result = REJECT,
1498 },
1499 {
1500 "check __sk_buff->tc_index, offset 2, half store not permitted",
1501 .insns = {
1502 BPF_MOV64_IMM(BPF_REG_0, 0),
1503 BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
1504 offsetof(struct __sk_buff, tc_index) + 2),
1505 BPF_EXIT_INSN(),
1506 },
1507 .errstr = "invalid bpf_context access",
1508 .result = REJECT,
1509 },
1510 {
1511 "check skb->hash half load permitted",
1512 .insns = {
1513 BPF_MOV64_IMM(BPF_REG_0, 0),
1514 #if __BYTE_ORDER == __LITTLE_ENDIAN
1515 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
1516 offsetof(struct __sk_buff, hash)),
1517 #else
1518 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
1519 offsetof(struct __sk_buff, hash) + 2),
1520 #endif
1521 BPF_EXIT_INSN(),
1522 },
1523 .result = ACCEPT,
1524 },
1525 {
1526 "check skb->hash half load not permitted",
1527 .insns = {
1528 BPF_MOV64_IMM(BPF_REG_0, 0),
1529 #if __BYTE_ORDER == __LITTLE_ENDIAN
1530 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
1531 offsetof(struct __sk_buff, hash) + 2),
1532 #else
1533 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
1534 offsetof(struct __sk_buff, hash)),
1535 #endif
1536 BPF_EXIT_INSN(),
1537 },
1538 .errstr = "invalid bpf_context access",
1539 .result = REJECT,
1540 },
1541 {
1542 "check cb access: half, wrong type",
1543 .insns = {
1544 BPF_MOV64_IMM(BPF_REG_0, 0),
1545 BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
1546 offsetof(struct __sk_buff, cb[0])),
1547 BPF_EXIT_INSN(),
1548 },
1549 .errstr = "invalid bpf_context access",
1550 .result = REJECT,
1551 .prog_type = BPF_PROG_TYPE_CGROUP_SOCK,
1552 },
1553 {
1554 "check cb access: word",
1555 .insns = {
1556 BPF_MOV64_IMM(BPF_REG_0, 0),
1557 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
1558 offsetof(struct __sk_buff, cb[0])),
1559 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
1560 offsetof(struct __sk_buff, cb[1])),
1561 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
1562 offsetof(struct __sk_buff, cb[2])),
1563 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
1564 offsetof(struct __sk_buff, cb[3])),
1565 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
1566 offsetof(struct __sk_buff, cb[4])),
1567 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1568 offsetof(struct __sk_buff, cb[0])),
1569 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1570 offsetof(struct __sk_buff, cb[1])),
1571 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1572 offsetof(struct __sk_buff, cb[2])),
1573 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1574 offsetof(struct __sk_buff, cb[3])),
1575 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1576 offsetof(struct __sk_buff, cb[4])),
1577 BPF_EXIT_INSN(),
1578 },
1579 .result = ACCEPT,
1580 },
1581 {
1582 "check cb access: word, unaligned 1",
1583 .insns = {
1584 BPF_MOV64_IMM(BPF_REG_0, 0),
1585 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
1586 offsetof(struct __sk_buff, cb[0]) + 2),
1587 BPF_EXIT_INSN(),
1588 },
1589 .errstr = "misaligned context access",
1590 .result = REJECT,
1591 .flags = F_LOAD_WITH_STRICT_ALIGNMENT,
1592 },
1593 {
1594 "check cb access: word, unaligned 2",
1595 .insns = {
1596 BPF_MOV64_IMM(BPF_REG_0, 0),
1597 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
1598 offsetof(struct __sk_buff, cb[4]) + 1),
1599 BPF_EXIT_INSN(),
1600 },
1601 .errstr = "misaligned context access",
1602 .result = REJECT,
1603 .flags = F_LOAD_WITH_STRICT_ALIGNMENT,
1604 },
1605 {
1606 "check cb access: word, unaligned 3",
1607 .insns = {
1608 BPF_MOV64_IMM(BPF_REG_0, 0),
1609 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
1610 offsetof(struct __sk_buff, cb[4]) + 2),
1611 BPF_EXIT_INSN(),
1612 },
1613 .errstr = "misaligned context access",
1614 .result = REJECT,
1615 .flags = F_LOAD_WITH_STRICT_ALIGNMENT,
1616 },
1617 {
1618 "check cb access: word, unaligned 4",
1619 .insns = {
1620 BPF_MOV64_IMM(BPF_REG_0, 0),
1621 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
1622 offsetof(struct __sk_buff, cb[4]) + 3),
1623 BPF_EXIT_INSN(),
1624 },
1625 .errstr = "misaligned context access",
1626 .result = REJECT,
1627 .flags = F_LOAD_WITH_STRICT_ALIGNMENT,
1628 },
1629 {
1630 "check cb access: double",
1631 .insns = {
1632 BPF_MOV64_IMM(BPF_REG_0, 0),
1633 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
1634 offsetof(struct __sk_buff, cb[0])),
1635 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
1636 offsetof(struct __sk_buff, cb[2])),
1637 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
1638 offsetof(struct __sk_buff, cb[0])),
1639 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
1640 offsetof(struct __sk_buff, cb[2])),
1641 BPF_EXIT_INSN(),
1642 },
1643 .result = ACCEPT,
1644 },
1645 {
1646 "check cb access: double, unaligned 1",
1647 .insns = {
1648 BPF_MOV64_IMM(BPF_REG_0, 0),
1649 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
1650 offsetof(struct __sk_buff, cb[1])),
1651 BPF_EXIT_INSN(),
1652 },
1653 .errstr = "misaligned context access",
1654 .result = REJECT,
1655 .flags = F_LOAD_WITH_STRICT_ALIGNMENT,
1656 },
1657 {
1658 "check cb access: double, unaligned 2",
1659 .insns = {
1660 BPF_MOV64_IMM(BPF_REG_0, 0),
1661 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
1662 offsetof(struct __sk_buff, cb[3])),
1663 BPF_EXIT_INSN(),
1664 },
1665 .errstr = "misaligned context access",
1666 .result = REJECT,
1667 .flags = F_LOAD_WITH_STRICT_ALIGNMENT,
1668 },
1669 {
1670 "check cb access: double, oob 1",
1671 .insns = {
1672 BPF_MOV64_IMM(BPF_REG_0, 0),
1673 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
1674 offsetof(struct __sk_buff, cb[4])),
1675 BPF_EXIT_INSN(),
1676 },
1677 .errstr = "invalid bpf_context access",
1678 .result = REJECT,
1679 },
1680 {
1681 "check cb access: double, oob 2",
1682 .insns = {
1683 BPF_MOV64_IMM(BPF_REG_0, 0),
1684 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
1685 offsetof(struct __sk_buff, cb[4])),
1686 BPF_EXIT_INSN(),
1687 },
1688 .errstr = "invalid bpf_context access",
1689 .result = REJECT,
1690 },
1691 {
1692 "check __sk_buff->ifindex dw store not permitted",
1693 .insns = {
1694 BPF_MOV64_IMM(BPF_REG_0, 0),
1695 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
1696 offsetof(struct __sk_buff, ifindex)),
1697 BPF_EXIT_INSN(),
1698 },
1699 .errstr = "invalid bpf_context access",
1700 .result = REJECT,
1701 },
1702 {
1703 "check __sk_buff->ifindex dw load not permitted",
1704 .insns = {
1705 BPF_MOV64_IMM(BPF_REG_0, 0),
1706 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
1707 offsetof(struct __sk_buff, ifindex)),
1708 BPF_EXIT_INSN(),
1709 },
1710 .errstr = "invalid bpf_context access",
1711 .result = REJECT,
1712 },
1713 {
1714 "check cb access: double, wrong type",
1715 .insns = {
1716 BPF_MOV64_IMM(BPF_REG_0, 0),
1717 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
1718 offsetof(struct __sk_buff, cb[0])),
1719 BPF_EXIT_INSN(),
1720 },
1721 .errstr = "invalid bpf_context access",
1722 .result = REJECT,
1723 .prog_type = BPF_PROG_TYPE_CGROUP_SOCK,
1724 },
1725 {
1726 "check out of range skb->cb access",
1727 .insns = {
1728 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1729 offsetof(struct __sk_buff, cb[0]) + 256),
1730 BPF_EXIT_INSN(),
1731 },
1732 .errstr = "invalid bpf_context access",
1733 .errstr_unpriv = "",
1734 .result = REJECT,
1735 .prog_type = BPF_PROG_TYPE_SCHED_ACT,
1736 },
1737 {
1738 "write skb fields from socket prog",
1739 .insns = {
1740 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1741 offsetof(struct __sk_buff, cb[4])),
1742 BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1),
1743 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1744 offsetof(struct __sk_buff, mark)),
1745 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1746 offsetof(struct __sk_buff, tc_index)),
1747 BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1),
1748 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1,
1749 offsetof(struct __sk_buff, cb[0])),
1750 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1,
1751 offsetof(struct __sk_buff, cb[2])),
1752 BPF_EXIT_INSN(),
1753 },
1754 .result = ACCEPT,
1755 .errstr_unpriv = "R1 leaks addr",
1756 .result_unpriv = REJECT,
1757 },
1758 {
1759 "write skb fields from tc_cls_act prog",
1760 .insns = {
1761 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1762 offsetof(struct __sk_buff, cb[0])),
1763 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
1764 offsetof(struct __sk_buff, mark)),
1765 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1766 offsetof(struct __sk_buff, tc_index)),
1767 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
1768 offsetof(struct __sk_buff, tc_index)),
1769 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
1770 offsetof(struct __sk_buff, cb[3])),
1771 BPF_EXIT_INSN(),
1772 },
1773 .errstr_unpriv = "",
1774 .result_unpriv = REJECT,
1775 .result = ACCEPT,
1776 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
1777 },
1778 {
1779 "PTR_TO_STACK store/load",
1780 .insns = {
1781 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
1782 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -10),
1783 BPF_ST_MEM(BPF_DW, BPF_REG_1, 2, 0xfaceb00c),
1784 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 2),
1785 BPF_EXIT_INSN(),
1786 },
1787 .result = ACCEPT,
1788 },
1789 {
1790 "PTR_TO_STACK store/load - bad alignment on off",
1791 .insns = {
1792 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
1793 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
1794 BPF_ST_MEM(BPF_DW, BPF_REG_1, 2, 0xfaceb00c),
1795 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 2),
1796 BPF_EXIT_INSN(),
1797 },
1798 .result = REJECT,
1799 .errstr = "misaligned stack access off (0x0; 0x0)+-8+2 size 8",
1800 .flags = F_LOAD_WITH_STRICT_ALIGNMENT,
1801 },
1802 {
1803 "PTR_TO_STACK store/load - bad alignment on reg",
1804 .insns = {
1805 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
1806 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -10),
1807 BPF_ST_MEM(BPF_DW, BPF_REG_1, 8, 0xfaceb00c),
1808 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 8),
1809 BPF_EXIT_INSN(),
1810 },
1811 .result = REJECT,
1812 .errstr = "misaligned stack access off (0x0; 0x0)+-10+8 size 8",
1813 .flags = F_LOAD_WITH_STRICT_ALIGNMENT,
1814 },
1815 {
1816 "PTR_TO_STACK store/load - out of bounds low",
1817 .insns = {
1818 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
1819 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -80000),
1820 BPF_ST_MEM(BPF_DW, BPF_REG_1, 8, 0xfaceb00c),
1821 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 8),
1822 BPF_EXIT_INSN(),
1823 },
1824 .result = REJECT,
1825 .errstr = "invalid stack off=-79992 size=8",
1826 },
1827 {
1828 "PTR_TO_STACK store/load - out of bounds high",
1829 .insns = {
1830 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
1831 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
1832 BPF_ST_MEM(BPF_DW, BPF_REG_1, 8, 0xfaceb00c),
1833 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 8),
1834 BPF_EXIT_INSN(),
1835 },
1836 .result = REJECT,
1837 .errstr = "invalid stack off=0 size=8",
1838 },
1839 {
1840 "unpriv: return pointer",
1841 .insns = {
1842 BPF_MOV64_REG(BPF_REG_0, BPF_REG_10),
1843 BPF_EXIT_INSN(),
1844 },
1845 .result = ACCEPT,
1846 .result_unpriv = REJECT,
1847 .errstr_unpriv = "R0 leaks addr",
1848 },
1849 {
1850 "unpriv: add const to pointer",
1851 .insns = {
1852 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
1853 BPF_MOV64_IMM(BPF_REG_0, 0),
1854 BPF_EXIT_INSN(),
1855 },
1856 .result = ACCEPT,
1857 },
1858 {
1859 "unpriv: add pointer to pointer",
1860 .insns = {
1861 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_10),
1862 BPF_MOV64_IMM(BPF_REG_0, 0),
1863 BPF_EXIT_INSN(),
1864 },
1865 .result = ACCEPT,
1866 .result_unpriv = REJECT,
1867 .errstr_unpriv = "R1 pointer += pointer",
1868 },
1869 {
1870 "unpriv: neg pointer",
1871 .insns = {
1872 BPF_ALU64_IMM(BPF_NEG, BPF_REG_1, 0),
1873 BPF_MOV64_IMM(BPF_REG_0, 0),
1874 BPF_EXIT_INSN(),
1875 },
1876 .result = ACCEPT,
1877 .result_unpriv = REJECT,
1878 .errstr_unpriv = "R1 pointer arithmetic",
1879 },
1880 {
1881 "unpriv: cmp pointer with const",
1882 .insns = {
1883 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 0),
1884 BPF_MOV64_IMM(BPF_REG_0, 0),
1885 BPF_EXIT_INSN(),
1886 },
1887 .result = ACCEPT,
1888 .result_unpriv = REJECT,
1889 .errstr_unpriv = "R1 pointer comparison",
1890 },
1891 {
1892 "unpriv: cmp pointer with pointer",
1893 .insns = {
1894 BPF_JMP_REG(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0),
1895 BPF_MOV64_IMM(BPF_REG_0, 0),
1896 BPF_EXIT_INSN(),
1897 },
1898 .result = ACCEPT,
1899 .result_unpriv = REJECT,
1900 .errstr_unpriv = "R10 pointer comparison",
1901 },
1902 {
1903 "unpriv: check that printk is disallowed",
1904 .insns = {
1905 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
1906 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
1907 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
1908 BPF_MOV64_IMM(BPF_REG_2, 8),
1909 BPF_MOV64_REG(BPF_REG_3, BPF_REG_1),
1910 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
1911 BPF_FUNC_trace_printk),
1912 BPF_MOV64_IMM(BPF_REG_0, 0),
1913 BPF_EXIT_INSN(),
1914 },
1915 .errstr_unpriv = "unknown func bpf_trace_printk#6",
1916 .result_unpriv = REJECT,
1917 .result = ACCEPT,
1918 },
1919 {
1920 "unpriv: pass pointer to helper function",
1921 .insns = {
1922 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
1923 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
1924 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
1925 BPF_LD_MAP_FD(BPF_REG_1, 0),
1926 BPF_MOV64_REG(BPF_REG_3, BPF_REG_2),
1927 BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
1928 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
1929 BPF_FUNC_map_update_elem),
1930 BPF_MOV64_IMM(BPF_REG_0, 0),
1931 BPF_EXIT_INSN(),
1932 },
1933 .fixup_map1 = { 3 },
1934 .errstr_unpriv = "R4 leaks addr",
1935 .result_unpriv = REJECT,
1936 .result = ACCEPT,
1937 },
1938 {
1939 "unpriv: indirectly pass pointer on stack to helper function",
1940 .insns = {
1941 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_10, -8),
1942 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
1943 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
1944 BPF_LD_MAP_FD(BPF_REG_1, 0),
1945 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
1946 BPF_FUNC_map_lookup_elem),
1947 BPF_MOV64_IMM(BPF_REG_0, 0),
1948 BPF_EXIT_INSN(),
1949 },
1950 .fixup_map1 = { 3 },
1951 .errstr = "invalid indirect read from stack off -8+0 size 8",
1952 .result = REJECT,
1953 },
1954 {
1955 "unpriv: mangle pointer on stack 1",
1956 .insns = {
1957 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_10, -8),
1958 BPF_ST_MEM(BPF_W, BPF_REG_10, -8, 0),
1959 BPF_MOV64_IMM(BPF_REG_0, 0),
1960 BPF_EXIT_INSN(),
1961 },
1962 .errstr_unpriv = "attempt to corrupt spilled",
1963 .result_unpriv = REJECT,
1964 .result = ACCEPT,
1965 },
1966 {
1967 "unpriv: mangle pointer on stack 2",
1968 .insns = {
1969 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_10, -8),
1970 BPF_ST_MEM(BPF_B, BPF_REG_10, -1, 0),
1971 BPF_MOV64_IMM(BPF_REG_0, 0),
1972 BPF_EXIT_INSN(),
1973 },
1974 .errstr_unpriv = "attempt to corrupt spilled",
1975 .result_unpriv = REJECT,
1976 .result = ACCEPT,
1977 },
1978 {
1979 "unpriv: read pointer from stack in small chunks",
1980 .insns = {
1981 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_10, -8),
1982 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_10, -8),
1983 BPF_MOV64_IMM(BPF_REG_0, 0),
1984 BPF_EXIT_INSN(),
1985 },
1986 .errstr = "invalid size",
1987 .result = REJECT,
1988 },
1989 {
1990 "unpriv: write pointer into ctx",
1991 .insns = {
1992 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1, 0),
1993 BPF_MOV64_IMM(BPF_REG_0, 0),
1994 BPF_EXIT_INSN(),
1995 },
1996 .errstr_unpriv = "R1 leaks addr",
1997 .result_unpriv = REJECT,
1998 .errstr = "invalid bpf_context access",
1999 .result = REJECT,
2000 },
2001 {
2002 "unpriv: spill/fill of ctx",
2003 .insns = {
2004 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
2005 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
2006 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0),
2007 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0),
2008 BPF_MOV64_IMM(BPF_REG_0, 0),
2009 BPF_EXIT_INSN(),
2010 },
2011 .result = ACCEPT,
2012 },
2013 {
2014 "unpriv: spill/fill of ctx 2",
2015 .insns = {
2016 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
2017 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
2018 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0),
2019 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0),
2020 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
2021 BPF_FUNC_get_hash_recalc),
2022 BPF_EXIT_INSN(),
2023 },
2024 .result = ACCEPT,
2025 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2026 },
2027 {
2028 "unpriv: spill/fill of ctx 3",
2029 .insns = {
2030 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
2031 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
2032 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0),
2033 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_10, 0),
2034 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0),
2035 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
2036 BPF_FUNC_get_hash_recalc),
2037 BPF_EXIT_INSN(),
2038 },
2039 .result = REJECT,
2040 .errstr = "R1 type=fp expected=ctx",
2041 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2042 },
2043 {
2044 "unpriv: spill/fill of ctx 4",
2045 .insns = {
2046 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
2047 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
2048 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0),
2049 BPF_MOV64_IMM(BPF_REG_0, 1),
2050 BPF_RAW_INSN(BPF_STX | BPF_XADD | BPF_DW, BPF_REG_10,
2051 BPF_REG_0, -8, 0),
2052 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0),
2053 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
2054 BPF_FUNC_get_hash_recalc),
2055 BPF_EXIT_INSN(),
2056 },
2057 .result = REJECT,
2058 .errstr = "R1 type=inv expected=ctx",
2059 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2060 },
2061 {
2062 "unpriv: spill/fill of different pointers stx",
2063 .insns = {
2064 BPF_MOV64_IMM(BPF_REG_3, 42),
2065 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
2066 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
2067 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 3),
2068 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
2069 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16),
2070 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_2, 0),
2071 BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 1),
2072 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0),
2073 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0),
2074 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_3,
2075 offsetof(struct __sk_buff, mark)),
2076 BPF_MOV64_IMM(BPF_REG_0, 0),
2077 BPF_EXIT_INSN(),
2078 },
2079 .result = REJECT,
2080 .errstr = "same insn cannot be used with different pointers",
2081 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2082 },
2083 {
2084 "unpriv: spill/fill of different pointers ldx",
2085 .insns = {
2086 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
2087 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
2088 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 3),
2089 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
2090 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2,
2091 -(__s32)offsetof(struct bpf_perf_event_data,
2092 sample_period) - 8),
2093 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_2, 0),
2094 BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 1),
2095 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0),
2096 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0),
2097 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1,
2098 offsetof(struct bpf_perf_event_data,
2099 sample_period)),
2100 BPF_MOV64_IMM(BPF_REG_0, 0),
2101 BPF_EXIT_INSN(),
2102 },
2103 .result = REJECT,
2104 .errstr = "same insn cannot be used with different pointers",
2105 .prog_type = BPF_PROG_TYPE_PERF_EVENT,
2106 },
2107 {
2108 "unpriv: write pointer into map elem value",
2109 .insns = {
2110 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
2111 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
2112 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
2113 BPF_LD_MAP_FD(BPF_REG_1, 0),
2114 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
2115 BPF_FUNC_map_lookup_elem),
2116 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
2117 BPF_STX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0),
2118 BPF_EXIT_INSN(),
2119 },
2120 .fixup_map1 = { 3 },
2121 .errstr_unpriv = "R0 leaks addr",
2122 .result_unpriv = REJECT,
2123 .result = ACCEPT,
2124 },
2125 {
2126 "unpriv: partial copy of pointer",
2127 .insns = {
2128 BPF_MOV32_REG(BPF_REG_1, BPF_REG_10),
2129 BPF_MOV64_IMM(BPF_REG_0, 0),
2130 BPF_EXIT_INSN(),
2131 },
2132 .errstr_unpriv = "R10 partial copy",
2133 .result_unpriv = REJECT,
2134 .result = ACCEPT,
2135 },
2136 {
2137 "unpriv: pass pointer to tail_call",
2138 .insns = {
2139 BPF_MOV64_REG(BPF_REG_3, BPF_REG_1),
2140 BPF_LD_MAP_FD(BPF_REG_2, 0),
2141 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
2142 BPF_FUNC_tail_call),
2143 BPF_MOV64_IMM(BPF_REG_0, 0),
2144 BPF_EXIT_INSN(),
2145 },
2146 .fixup_prog = { 1 },
2147 .errstr_unpriv = "R3 leaks addr into helper",
2148 .result_unpriv = REJECT,
2149 .result = ACCEPT,
2150 },
2151 {
2152 "unpriv: cmp map pointer with zero",
2153 .insns = {
2154 BPF_MOV64_IMM(BPF_REG_1, 0),
2155 BPF_LD_MAP_FD(BPF_REG_1, 0),
2156 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 0),
2157 BPF_MOV64_IMM(BPF_REG_0, 0),
2158 BPF_EXIT_INSN(),
2159 },
2160 .fixup_map1 = { 1 },
2161 .errstr_unpriv = "R1 pointer comparison",
2162 .result_unpriv = REJECT,
2163 .result = ACCEPT,
2164 },
2165 {
2166 "unpriv: write into frame pointer",
2167 .insns = {
2168 BPF_MOV64_REG(BPF_REG_10, BPF_REG_1),
2169 BPF_MOV64_IMM(BPF_REG_0, 0),
2170 BPF_EXIT_INSN(),
2171 },
2172 .errstr = "frame pointer is read only",
2173 .result = REJECT,
2174 },
2175 {
2176 "unpriv: spill/fill frame pointer",
2177 .insns = {
2178 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
2179 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
2180 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_10, 0),
2181 BPF_LDX_MEM(BPF_DW, BPF_REG_10, BPF_REG_6, 0),
2182 BPF_MOV64_IMM(BPF_REG_0, 0),
2183 BPF_EXIT_INSN(),
2184 },
2185 .errstr = "frame pointer is read only",
2186 .result = REJECT,
2187 },
2188 {
2189 "unpriv: cmp of frame pointer",
2190 .insns = {
2191 BPF_JMP_IMM(BPF_JEQ, BPF_REG_10, 0, 0),
2192 BPF_MOV64_IMM(BPF_REG_0, 0),
2193 BPF_EXIT_INSN(),
2194 },
2195 .errstr_unpriv = "R10 pointer comparison",
2196 .result_unpriv = REJECT,
2197 .result = ACCEPT,
2198 },
2199 {
2200 "unpriv: adding of fp",
2201 .insns = {
2202 BPF_MOV64_IMM(BPF_REG_0, 0),
2203 BPF_MOV64_IMM(BPF_REG_1, 0),
2204 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_10),
2205 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, -8),
2206 BPF_EXIT_INSN(),
2207 },
2208 .result = ACCEPT,
2209 },
2210 {
2211 "unpriv: cmp of stack pointer",
2212 .insns = {
2213 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
2214 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
2215 BPF_JMP_IMM(BPF_JEQ, BPF_REG_2, 0, 0),
2216 BPF_MOV64_IMM(BPF_REG_0, 0),
2217 BPF_EXIT_INSN(),
2218 },
2219 .errstr_unpriv = "R2 pointer comparison",
2220 .result_unpriv = REJECT,
2221 .result = ACCEPT,
2222 },
2223 {
2224 "stack pointer arithmetic",
2225 .insns = {
2226 BPF_MOV64_IMM(BPF_REG_1, 4),
2227 BPF_JMP_IMM(BPF_JA, 0, 0, 0),
2228 BPF_MOV64_REG(BPF_REG_7, BPF_REG_10),
2229 BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -10),
2230 BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -10),
2231 BPF_MOV64_REG(BPF_REG_2, BPF_REG_7),
2232 BPF_ALU64_REG(BPF_ADD, BPF_REG_2, BPF_REG_1),
2233 BPF_ST_MEM(0, BPF_REG_2, 4, 0),
2234 BPF_MOV64_REG(BPF_REG_2, BPF_REG_7),
2235 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 8),
2236 BPF_ST_MEM(0, BPF_REG_2, 4, 0),
2237 BPF_MOV64_IMM(BPF_REG_0, 0),
2238 BPF_EXIT_INSN(),
2239 },
2240 .result = ACCEPT,
2241 },
2242 {
2243 "raw_stack: no skb_load_bytes",
2244 .insns = {
2245 BPF_MOV64_IMM(BPF_REG_2, 4),
2246 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
2247 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
2248 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
2249 BPF_MOV64_IMM(BPF_REG_4, 8),
2250 /* Call to skb_load_bytes() omitted. */
2251 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
2252 BPF_EXIT_INSN(),
2253 },
2254 .result = REJECT,
2255 .errstr = "invalid read from stack off -8+0 size 8",
2256 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2257 },
2258 {
2259 "raw_stack: skb_load_bytes, negative len",
2260 .insns = {
2261 BPF_MOV64_IMM(BPF_REG_2, 4),
2262 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
2263 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
2264 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
2265 BPF_MOV64_IMM(BPF_REG_4, -8),
2266 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
2267 BPF_FUNC_skb_load_bytes),
2268 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
2269 BPF_EXIT_INSN(),
2270 },
2271 .result = REJECT,
2272 .errstr = "R4 min value is negative",
2273 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2274 },
2275 {
2276 "raw_stack: skb_load_bytes, negative len 2",
2277 .insns = {
2278 BPF_MOV64_IMM(BPF_REG_2, 4),
2279 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
2280 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
2281 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
2282 BPF_MOV64_IMM(BPF_REG_4, ~0),
2283 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
2284 BPF_FUNC_skb_load_bytes),
2285 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
2286 BPF_EXIT_INSN(),
2287 },
2288 .result = REJECT,
2289 .errstr = "R4 min value is negative",
2290 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2291 },
2292 {
2293 "raw_stack: skb_load_bytes, zero len",
2294 .insns = {
2295 BPF_MOV64_IMM(BPF_REG_2, 4),
2296 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
2297 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
2298 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
2299 BPF_MOV64_IMM(BPF_REG_4, 0),
2300 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
2301 BPF_FUNC_skb_load_bytes),
2302 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
2303 BPF_EXIT_INSN(),
2304 },
2305 .result = REJECT,
2306 .errstr = "invalid stack type R3",
2307 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2308 },
2309 {
2310 "raw_stack: skb_load_bytes, no init",
2311 .insns = {
2312 BPF_MOV64_IMM(BPF_REG_2, 4),
2313 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
2314 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
2315 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
2316 BPF_MOV64_IMM(BPF_REG_4, 8),
2317 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
2318 BPF_FUNC_skb_load_bytes),
2319 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
2320 BPF_EXIT_INSN(),
2321 },
2322 .result = ACCEPT,
2323 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2324 },
2325 {
2326 "raw_stack: skb_load_bytes, init",
2327 .insns = {
2328 BPF_MOV64_IMM(BPF_REG_2, 4),
2329 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
2330 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
2331 BPF_ST_MEM(BPF_DW, BPF_REG_6, 0, 0xcafe),
2332 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
2333 BPF_MOV64_IMM(BPF_REG_4, 8),
2334 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
2335 BPF_FUNC_skb_load_bytes),
2336 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
2337 BPF_EXIT_INSN(),
2338 },
2339 .result = ACCEPT,
2340 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2341 },
2342 {
2343 "raw_stack: skb_load_bytes, spilled regs around bounds",
2344 .insns = {
2345 BPF_MOV64_IMM(BPF_REG_2, 4),
2346 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
2347 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -16),
2348 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, -8),
2349 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 8),
2350 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
2351 BPF_MOV64_IMM(BPF_REG_4, 8),
2352 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
2353 BPF_FUNC_skb_load_bytes),
2354 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, -8),
2355 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_6, 8),
2356 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0,
2357 offsetof(struct __sk_buff, mark)),
2358 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_2,
2359 offsetof(struct __sk_buff, priority)),
2360 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2),
2361 BPF_EXIT_INSN(),
2362 },
2363 .result = ACCEPT,
2364 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2365 },
2366 {
2367 "raw_stack: skb_load_bytes, spilled regs corruption",
2368 .insns = {
2369 BPF_MOV64_IMM(BPF_REG_2, 4),
2370 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
2371 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
2372 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0),
2373 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
2374 BPF_MOV64_IMM(BPF_REG_4, 8),
2375 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
2376 BPF_FUNC_skb_load_bytes),
2377 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
2378 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0,
2379 offsetof(struct __sk_buff, mark)),
2380 BPF_EXIT_INSN(),
2381 },
2382 .result = REJECT,
2383 .errstr = "R0 invalid mem access 'inv'",
2384 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2385 },
2386 {
2387 "raw_stack: skb_load_bytes, spilled regs corruption 2",
2388 .insns = {
2389 BPF_MOV64_IMM(BPF_REG_2, 4),
2390 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
2391 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -16),
2392 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, -8),
2393 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0),
2394 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 8),
2395 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
2396 BPF_MOV64_IMM(BPF_REG_4, 8),
2397 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
2398 BPF_FUNC_skb_load_bytes),
2399 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, -8),
2400 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_6, 8),
2401 BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_6, 0),
2402 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0,
2403 offsetof(struct __sk_buff, mark)),
2404 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_2,
2405 offsetof(struct __sk_buff, priority)),
2406 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2),
2407 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_3,
2408 offsetof(struct __sk_buff, pkt_type)),
2409 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_3),
2410 BPF_EXIT_INSN(),
2411 },
2412 .result = REJECT,
2413 .errstr = "R3 invalid mem access 'inv'",
2414 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2415 },
2416 {
2417 "raw_stack: skb_load_bytes, spilled regs + data",
2418 .insns = {
2419 BPF_MOV64_IMM(BPF_REG_2, 4),
2420 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
2421 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -16),
2422 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, -8),
2423 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0),
2424 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 8),
2425 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
2426 BPF_MOV64_IMM(BPF_REG_4, 8),
2427 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
2428 BPF_FUNC_skb_load_bytes),
2429 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, -8),
2430 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_6, 8),
2431 BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_6, 0),
2432 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0,
2433 offsetof(struct __sk_buff, mark)),
2434 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_2,
2435 offsetof(struct __sk_buff, priority)),
2436 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2),
2437 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_3),
2438 BPF_EXIT_INSN(),
2439 },
2440 .result = ACCEPT,
2441 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2442 },
2443 {
2444 "raw_stack: skb_load_bytes, invalid access 1",
2445 .insns = {
2446 BPF_MOV64_IMM(BPF_REG_2, 4),
2447 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
2448 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -513),
2449 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
2450 BPF_MOV64_IMM(BPF_REG_4, 8),
2451 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
2452 BPF_FUNC_skb_load_bytes),
2453 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
2454 BPF_EXIT_INSN(),
2455 },
2456 .result = REJECT,
2457 .errstr = "invalid stack type R3 off=-513 access_size=8",
2458 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2459 },
2460 {
2461 "raw_stack: skb_load_bytes, invalid access 2",
2462 .insns = {
2463 BPF_MOV64_IMM(BPF_REG_2, 4),
2464 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
2465 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -1),
2466 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
2467 BPF_MOV64_IMM(BPF_REG_4, 8),
2468 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
2469 BPF_FUNC_skb_load_bytes),
2470 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
2471 BPF_EXIT_INSN(),
2472 },
2473 .result = REJECT,
2474 .errstr = "invalid stack type R3 off=-1 access_size=8",
2475 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2476 },
2477 {
2478 "raw_stack: skb_load_bytes, invalid access 3",
2479 .insns = {
2480 BPF_MOV64_IMM(BPF_REG_2, 4),
2481 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
2482 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 0xffffffff),
2483 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
2484 BPF_MOV64_IMM(BPF_REG_4, 0xffffffff),
2485 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
2486 BPF_FUNC_skb_load_bytes),
2487 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
2488 BPF_EXIT_INSN(),
2489 },
2490 .result = REJECT,
2491 .errstr = "R4 min value is negative",
2492 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2493 },
2494 {
2495 "raw_stack: skb_load_bytes, invalid access 4",
2496 .insns = {
2497 BPF_MOV64_IMM(BPF_REG_2, 4),
2498 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
2499 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -1),
2500 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
2501 BPF_MOV64_IMM(BPF_REG_4, 0x7fffffff),
2502 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
2503 BPF_FUNC_skb_load_bytes),
2504 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
2505 BPF_EXIT_INSN(),
2506 },
2507 .result = REJECT,
2508 .errstr = "R4 unbounded memory access, use 'var &= const' or 'if (var < const)'",
2509 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2510 },
2511 {
2512 "raw_stack: skb_load_bytes, invalid access 5",
2513 .insns = {
2514 BPF_MOV64_IMM(BPF_REG_2, 4),
2515 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
2516 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -512),
2517 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
2518 BPF_MOV64_IMM(BPF_REG_4, 0x7fffffff),
2519 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
2520 BPF_FUNC_skb_load_bytes),
2521 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
2522 BPF_EXIT_INSN(),
2523 },
2524 .result = REJECT,
2525 .errstr = "R4 unbounded memory access, use 'var &= const' or 'if (var < const)'",
2526 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2527 },
2528 {
2529 "raw_stack: skb_load_bytes, invalid access 6",
2530 .insns = {
2531 BPF_MOV64_IMM(BPF_REG_2, 4),
2532 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
2533 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -512),
2534 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
2535 BPF_MOV64_IMM(BPF_REG_4, 0),
2536 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
2537 BPF_FUNC_skb_load_bytes),
2538 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
2539 BPF_EXIT_INSN(),
2540 },
2541 .result = REJECT,
2542 .errstr = "invalid stack type R3 off=-512 access_size=0",
2543 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2544 },
2545 {
2546 "raw_stack: skb_load_bytes, large access",
2547 .insns = {
2548 BPF_MOV64_IMM(BPF_REG_2, 4),
2549 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
2550 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -512),
2551 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
2552 BPF_MOV64_IMM(BPF_REG_4, 512),
2553 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
2554 BPF_FUNC_skb_load_bytes),
2555 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
2556 BPF_EXIT_INSN(),
2557 },
2558 .result = ACCEPT,
2559 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2560 },
2561 {
2562 "direct packet access: test1",
2563 .insns = {
2564 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
2565 offsetof(struct __sk_buff, data)),
2566 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
2567 offsetof(struct __sk_buff, data_end)),
2568 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
2569 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
2570 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
2571 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
2572 BPF_MOV64_IMM(BPF_REG_0, 0),
2573 BPF_EXIT_INSN(),
2574 },
2575 .result = ACCEPT,
2576 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2577 },
2578 {
2579 "direct packet access: test2",
2580 .insns = {
2581 BPF_MOV64_IMM(BPF_REG_0, 1),
2582 BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_1,
2583 offsetof(struct __sk_buff, data_end)),
2584 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
2585 offsetof(struct __sk_buff, data)),
2586 BPF_MOV64_REG(BPF_REG_5, BPF_REG_3),
2587 BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 14),
2588 BPF_JMP_REG(BPF_JGT, BPF_REG_5, BPF_REG_4, 15),
2589 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_3, 7),
2590 BPF_LDX_MEM(BPF_B, BPF_REG_4, BPF_REG_3, 12),
2591 BPF_ALU64_IMM(BPF_MUL, BPF_REG_4, 14),
2592 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
2593 offsetof(struct __sk_buff, data)),
2594 BPF_ALU64_REG(BPF_ADD, BPF_REG_3, BPF_REG_4),
2595 BPF_MOV64_REG(BPF_REG_2, BPF_REG_1),
2596 BPF_ALU64_IMM(BPF_LSH, BPF_REG_2, 49),
2597 BPF_ALU64_IMM(BPF_RSH, BPF_REG_2, 49),
2598 BPF_ALU64_REG(BPF_ADD, BPF_REG_3, BPF_REG_2),
2599 BPF_MOV64_REG(BPF_REG_2, BPF_REG_3),
2600 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 8),
2601 BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_1,
2602 offsetof(struct __sk_buff, data_end)),
2603 BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 1),
2604 BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_3, 4),
2605 BPF_MOV64_IMM(BPF_REG_0, 0),
2606 BPF_EXIT_INSN(),
2607 },
2608 .result = ACCEPT,
2609 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2610 },
2611 {
2612 "direct packet access: test3",
2613 .insns = {
2614 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
2615 offsetof(struct __sk_buff, data)),
2616 BPF_MOV64_IMM(BPF_REG_0, 0),
2617 BPF_EXIT_INSN(),
2618 },
2619 .errstr = "invalid bpf_context access off=76",
2620 .result = REJECT,
2621 .prog_type = BPF_PROG_TYPE_SOCKET_FILTER,
2622 },
2623 {
2624 "direct packet access: test4 (write)",
2625 .insns = {
2626 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
2627 offsetof(struct __sk_buff, data)),
2628 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
2629 offsetof(struct __sk_buff, data_end)),
2630 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
2631 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
2632 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
2633 BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0),
2634 BPF_MOV64_IMM(BPF_REG_0, 0),
2635 BPF_EXIT_INSN(),
2636 },
2637 .result = ACCEPT,
2638 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2639 },
2640 {
2641 "direct packet access: test5 (pkt_end >= reg, good access)",
2642 .insns = {
2643 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
2644 offsetof(struct __sk_buff, data)),
2645 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
2646 offsetof(struct __sk_buff, data_end)),
2647 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
2648 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
2649 BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 2),
2650 BPF_MOV64_IMM(BPF_REG_0, 1),
2651 BPF_EXIT_INSN(),
2652 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
2653 BPF_MOV64_IMM(BPF_REG_0, 0),
2654 BPF_EXIT_INSN(),
2655 },
2656 .result = ACCEPT,
2657 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2658 },
2659 {
2660 "direct packet access: test6 (pkt_end >= reg, bad access)",
2661 .insns = {
2662 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
2663 offsetof(struct __sk_buff, data)),
2664 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
2665 offsetof(struct __sk_buff, data_end)),
2666 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
2667 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
2668 BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 3),
2669 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
2670 BPF_MOV64_IMM(BPF_REG_0, 1),
2671 BPF_EXIT_INSN(),
2672 BPF_MOV64_IMM(BPF_REG_0, 0),
2673 BPF_EXIT_INSN(),
2674 },
2675 .errstr = "invalid access to packet",
2676 .result = REJECT,
2677 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2678 },
2679 {
2680 "direct packet access: test7 (pkt_end >= reg, both accesses)",
2681 .insns = {
2682 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
2683 offsetof(struct __sk_buff, data)),
2684 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
2685 offsetof(struct __sk_buff, data_end)),
2686 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
2687 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
2688 BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 3),
2689 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
2690 BPF_MOV64_IMM(BPF_REG_0, 1),
2691 BPF_EXIT_INSN(),
2692 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
2693 BPF_MOV64_IMM(BPF_REG_0, 0),
2694 BPF_EXIT_INSN(),
2695 },
2696 .errstr = "invalid access to packet",
2697 .result = REJECT,
2698 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2699 },
2700 {
2701 "direct packet access: test8 (double test, variant 1)",
2702 .insns = {
2703 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
2704 offsetof(struct __sk_buff, data)),
2705 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
2706 offsetof(struct __sk_buff, data_end)),
2707 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
2708 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
2709 BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 4),
2710 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
2711 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
2712 BPF_MOV64_IMM(BPF_REG_0, 1),
2713 BPF_EXIT_INSN(),
2714 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
2715 BPF_MOV64_IMM(BPF_REG_0, 0),
2716 BPF_EXIT_INSN(),
2717 },
2718 .result = ACCEPT,
2719 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2720 },
2721 {
2722 "direct packet access: test9 (double test, variant 2)",
2723 .insns = {
2724 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
2725 offsetof(struct __sk_buff, data)),
2726 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
2727 offsetof(struct __sk_buff, data_end)),
2728 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
2729 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
2730 BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 2),
2731 BPF_MOV64_IMM(BPF_REG_0, 1),
2732 BPF_EXIT_INSN(),
2733 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
2734 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
2735 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
2736 BPF_MOV64_IMM(BPF_REG_0, 0),
2737 BPF_EXIT_INSN(),
2738 },
2739 .result = ACCEPT,
2740 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2741 },
2742 {
2743 "direct packet access: test10 (write invalid)",
2744 .insns = {
2745 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
2746 offsetof(struct __sk_buff, data)),
2747 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
2748 offsetof(struct __sk_buff, data_end)),
2749 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
2750 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
2751 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 2),
2752 BPF_MOV64_IMM(BPF_REG_0, 0),
2753 BPF_EXIT_INSN(),
2754 BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0),
2755 BPF_MOV64_IMM(BPF_REG_0, 0),
2756 BPF_EXIT_INSN(),
2757 },
2758 .errstr = "invalid access to packet",
2759 .result = REJECT,
2760 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2761 },
2762 {
2763 "direct packet access: test11 (shift, good access)",
2764 .insns = {
2765 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
2766 offsetof(struct __sk_buff, data)),
2767 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
2768 offsetof(struct __sk_buff, data_end)),
2769 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
2770 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 22),
2771 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 8),
2772 BPF_MOV64_IMM(BPF_REG_3, 144),
2773 BPF_MOV64_REG(BPF_REG_5, BPF_REG_3),
2774 BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 23),
2775 BPF_ALU64_IMM(BPF_RSH, BPF_REG_5, 3),
2776 BPF_MOV64_REG(BPF_REG_6, BPF_REG_2),
2777 BPF_ALU64_REG(BPF_ADD, BPF_REG_6, BPF_REG_5),
2778 BPF_MOV64_IMM(BPF_REG_0, 1),
2779 BPF_EXIT_INSN(),
2780 BPF_MOV64_IMM(BPF_REG_0, 0),
2781 BPF_EXIT_INSN(),
2782 },
2783 .result = ACCEPT,
2784 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2785 },
2786 {
2787 "direct packet access: test12 (and, good access)",
2788 .insns = {
2789 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
2790 offsetof(struct __sk_buff, data)),
2791 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
2792 offsetof(struct __sk_buff, data_end)),
2793 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
2794 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 22),
2795 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 8),
2796 BPF_MOV64_IMM(BPF_REG_3, 144),
2797 BPF_MOV64_REG(BPF_REG_5, BPF_REG_3),
2798 BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 23),
2799 BPF_ALU64_IMM(BPF_AND, BPF_REG_5, 15),
2800 BPF_MOV64_REG(BPF_REG_6, BPF_REG_2),
2801 BPF_ALU64_REG(BPF_ADD, BPF_REG_6, BPF_REG_5),
2802 BPF_MOV64_IMM(BPF_REG_0, 1),
2803 BPF_EXIT_INSN(),
2804 BPF_MOV64_IMM(BPF_REG_0, 0),
2805 BPF_EXIT_INSN(),
2806 },
2807 .result = ACCEPT,
2808 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2809 },
2810 {
2811 "direct packet access: test13 (branches, good access)",
2812 .insns = {
2813 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
2814 offsetof(struct __sk_buff, data)),
2815 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
2816 offsetof(struct __sk_buff, data_end)),
2817 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
2818 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 22),
2819 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 13),
2820 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
2821 offsetof(struct __sk_buff, mark)),
2822 BPF_MOV64_IMM(BPF_REG_4, 1),
2823 BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_4, 2),
2824 BPF_MOV64_IMM(BPF_REG_3, 14),
2825 BPF_JMP_IMM(BPF_JA, 0, 0, 1),
2826 BPF_MOV64_IMM(BPF_REG_3, 24),
2827 BPF_MOV64_REG(BPF_REG_5, BPF_REG_3),
2828 BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 23),
2829 BPF_ALU64_IMM(BPF_AND, BPF_REG_5, 15),
2830 BPF_MOV64_REG(BPF_REG_6, BPF_REG_2),
2831 BPF_ALU64_REG(BPF_ADD, BPF_REG_6, BPF_REG_5),
2832 BPF_MOV64_IMM(BPF_REG_0, 1),
2833 BPF_EXIT_INSN(),
2834 BPF_MOV64_IMM(BPF_REG_0, 0),
2835 BPF_EXIT_INSN(),
2836 },
2837 .result = ACCEPT,
2838 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2839 },
2840 {
2841 "direct packet access: test14 (pkt_ptr += 0, CONST_IMM, good access)",
2842 .insns = {
2843 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
2844 offsetof(struct __sk_buff, data)),
2845 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
2846 offsetof(struct __sk_buff, data_end)),
2847 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
2848 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 22),
2849 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 7),
2850 BPF_MOV64_IMM(BPF_REG_5, 12),
2851 BPF_ALU64_IMM(BPF_RSH, BPF_REG_5, 4),
2852 BPF_MOV64_REG(BPF_REG_6, BPF_REG_2),
2853 BPF_ALU64_REG(BPF_ADD, BPF_REG_6, BPF_REG_5),
2854 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_6, 0),
2855 BPF_MOV64_IMM(BPF_REG_0, 1),
2856 BPF_EXIT_INSN(),
2857 BPF_MOV64_IMM(BPF_REG_0, 0),
2858 BPF_EXIT_INSN(),
2859 },
2860 .result = ACCEPT,
2861 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2862 },
2863 {
2864 "direct packet access: test15 (spill with xadd)",
2865 .insns = {
2866 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
2867 offsetof(struct __sk_buff, data)),
2868 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
2869 offsetof(struct __sk_buff, data_end)),
2870 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
2871 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
2872 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 8),
2873 BPF_MOV64_IMM(BPF_REG_5, 4096),
2874 BPF_MOV64_REG(BPF_REG_4, BPF_REG_10),
2875 BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, -8),
2876 BPF_STX_MEM(BPF_DW, BPF_REG_4, BPF_REG_2, 0),
2877 BPF_STX_XADD(BPF_DW, BPF_REG_4, BPF_REG_5, 0),
2878 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_4, 0),
2879 BPF_STX_MEM(BPF_W, BPF_REG_2, BPF_REG_5, 0),
2880 BPF_MOV64_IMM(BPF_REG_0, 0),
2881 BPF_EXIT_INSN(),
2882 },
2883 .errstr = "R2 invalid mem access 'inv'",
2884 .result = REJECT,
2885 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2886 },
2887 {
2888 "direct packet access: test16 (arith on data_end)",
2889 .insns = {
2890 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
2891 offsetof(struct __sk_buff, data)),
2892 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
2893 offsetof(struct __sk_buff, data_end)),
2894 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
2895 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
2896 BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, 16),
2897 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
2898 BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0),
2899 BPF_MOV64_IMM(BPF_REG_0, 0),
2900 BPF_EXIT_INSN(),
2901 },
2902 .errstr = "invalid access to packet",
2903 .result = REJECT,
2904 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2905 },
2906 {
2907 "direct packet access: test17 (pruning, alignment)",
2908 .insns = {
2909 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
2910 offsetof(struct __sk_buff, data)),
2911 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
2912 offsetof(struct __sk_buff, data_end)),
2913 BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
2914 offsetof(struct __sk_buff, mark)),
2915 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
2916 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 14),
2917 BPF_JMP_IMM(BPF_JGT, BPF_REG_7, 1, 4),
2918 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
2919 BPF_STX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, -4),
2920 BPF_MOV64_IMM(BPF_REG_0, 0),
2921 BPF_EXIT_INSN(),
2922 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1),
2923 BPF_JMP_A(-6),
2924 },
2925 .errstr = "misaligned packet access off 2+(0x0; 0x0)+15+-4 size 4",
2926 .result = REJECT,
2927 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2928 .flags = F_LOAD_WITH_STRICT_ALIGNMENT,
2929 },
2930 {
2931 "direct packet access: test18 (imm += pkt_ptr, 1)",
2932 .insns = {
2933 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
2934 offsetof(struct __sk_buff, data)),
2935 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
2936 offsetof(struct __sk_buff, data_end)),
2937 BPF_MOV64_IMM(BPF_REG_0, 8),
2938 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2),
2939 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
2940 BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0),
2941 BPF_MOV64_IMM(BPF_REG_0, 0),
2942 BPF_EXIT_INSN(),
2943 },
2944 .result = ACCEPT,
2945 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2946 },
2947 {
2948 "direct packet access: test19 (imm += pkt_ptr, 2)",
2949 .insns = {
2950 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
2951 offsetof(struct __sk_buff, data)),
2952 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
2953 offsetof(struct __sk_buff, data_end)),
2954 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
2955 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
2956 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 3),
2957 BPF_MOV64_IMM(BPF_REG_4, 4),
2958 BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_2),
2959 BPF_STX_MEM(BPF_B, BPF_REG_4, BPF_REG_4, 0),
2960 BPF_MOV64_IMM(BPF_REG_0, 0),
2961 BPF_EXIT_INSN(),
2962 },
2963 .result = ACCEPT,
2964 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2965 },
2966 {
2967 "direct packet access: test20 (x += pkt_ptr, 1)",
2968 .insns = {
2969 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
2970 offsetof(struct __sk_buff, data)),
2971 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
2972 offsetof(struct __sk_buff, data_end)),
2973 BPF_MOV64_IMM(BPF_REG_0, 0xffffffff),
2974 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8),
2975 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8),
2976 BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 0x7fff),
2977 BPF_MOV64_REG(BPF_REG_4, BPF_REG_0),
2978 BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_2),
2979 BPF_MOV64_REG(BPF_REG_5, BPF_REG_4),
2980 BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 0x7fff - 1),
2981 BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 1),
2982 BPF_STX_MEM(BPF_DW, BPF_REG_5, BPF_REG_4, 0),
2983 BPF_MOV64_IMM(BPF_REG_0, 0),
2984 BPF_EXIT_INSN(),
2985 },
2986 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2987 .result = ACCEPT,
2988 },
2989 {
2990 "direct packet access: test21 (x += pkt_ptr, 2)",
2991 .insns = {
2992 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
2993 offsetof(struct __sk_buff, data)),
2994 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
2995 offsetof(struct __sk_buff, data_end)),
2996 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
2997 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
2998 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 9),
2999 BPF_MOV64_IMM(BPF_REG_4, 0xffffffff),
3000 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_4, -8),
3001 BPF_LDX_MEM(BPF_DW, BPF_REG_4, BPF_REG_10, -8),
3002 BPF_ALU64_IMM(BPF_AND, BPF_REG_4, 0x7fff),
3003 BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_2),
3004 BPF_MOV64_REG(BPF_REG_5, BPF_REG_4),
3005 BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 0x7fff - 1),
3006 BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 1),
3007 BPF_STX_MEM(BPF_DW, BPF_REG_5, BPF_REG_4, 0),
3008 BPF_MOV64_IMM(BPF_REG_0, 0),
3009 BPF_EXIT_INSN(),
3010 },
3011 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
3012 .result = ACCEPT,
3013 },
3014 {
3015 "direct packet access: test22 (x += pkt_ptr, 3)",
3016 .insns = {
3017 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
3018 offsetof(struct __sk_buff, data)),
3019 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
3020 offsetof(struct __sk_buff, data_end)),
3021 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
3022 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
3023 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -8),
3024 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_3, -16),
3025 BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_10, -16),
3026 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 11),
3027 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -8),
3028 BPF_MOV64_IMM(BPF_REG_4, 0xffffffff),
3029 BPF_STX_XADD(BPF_DW, BPF_REG_10, BPF_REG_4, -8),
3030 BPF_LDX_MEM(BPF_DW, BPF_REG_4, BPF_REG_10, -8),
3031 BPF_ALU64_IMM(BPF_RSH, BPF_REG_4, 49),
3032 BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_2),
3033 BPF_MOV64_REG(BPF_REG_0, BPF_REG_4),
3034 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 2),
3035 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 2),
3036 BPF_MOV64_IMM(BPF_REG_2, 1),
3037 BPF_STX_MEM(BPF_H, BPF_REG_4, BPF_REG_2, 0),
3038 BPF_MOV64_IMM(BPF_REG_0, 0),
3039 BPF_EXIT_INSN(),
3040 },
3041 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
3042 .result = ACCEPT,
3043 },
3044 {
3045 "direct packet access: test23 (x += pkt_ptr, 4)",
3046 .insns = {
3047 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
3048 offsetof(struct __sk_buff, data)),
3049 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
3050 offsetof(struct __sk_buff, data_end)),
3051 BPF_MOV64_IMM(BPF_REG_0, 0xffffffff),
3052 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8),
3053 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8),
3054 BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 0xffff),
3055 BPF_MOV64_REG(BPF_REG_4, BPF_REG_0),
3056 BPF_MOV64_IMM(BPF_REG_0, 31),
3057 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_4),
3058 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2),
3059 BPF_MOV64_REG(BPF_REG_5, BPF_REG_0),
3060 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 0xffff - 1),
3061 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
3062 BPF_STX_MEM(BPF_DW, BPF_REG_5, BPF_REG_0, 0),
3063 BPF_MOV64_IMM(BPF_REG_0, 0),
3064 BPF_EXIT_INSN(),
3065 },
3066 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
3067 .result = REJECT,
3068 .errstr = "invalid access to packet, off=0 size=8, R5(id=1,off=0,r=0)",
3069 },
3070 {
3071 "direct packet access: test24 (x += pkt_ptr, 5)",
3072 .insns = {
3073 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
3074 offsetof(struct __sk_buff, data)),
3075 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
3076 offsetof(struct __sk_buff, data_end)),
3077 BPF_MOV64_IMM(BPF_REG_0, 0xffffffff),
3078 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8),
3079 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8),
3080 BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 0xff),
3081 BPF_MOV64_REG(BPF_REG_4, BPF_REG_0),
3082 BPF_MOV64_IMM(BPF_REG_0, 64),
3083 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_4),
3084 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2),
3085 BPF_MOV64_REG(BPF_REG_5, BPF_REG_0),
3086 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 0x7fff - 1),
3087 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
3088 BPF_STX_MEM(BPF_DW, BPF_REG_5, BPF_REG_0, 0),
3089 BPF_MOV64_IMM(BPF_REG_0, 0),
3090 BPF_EXIT_INSN(),
3091 },
3092 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
3093 .result = ACCEPT,
3094 },
3095 {
3096 "direct packet access: test25 (marking on <, good access)",
3097 .insns = {
3098 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
3099 offsetof(struct __sk_buff, data)),
3100 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
3101 offsetof(struct __sk_buff, data_end)),
3102 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
3103 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
3104 BPF_JMP_REG(BPF_JLT, BPF_REG_0, BPF_REG_3, 2),
3105 BPF_MOV64_IMM(BPF_REG_0, 0),
3106 BPF_EXIT_INSN(),
3107 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
3108 BPF_JMP_IMM(BPF_JA, 0, 0, -4),
3109 },
3110 .result = ACCEPT,
3111 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
3112 },
3113 {
3114 "direct packet access: test26 (marking on <, bad access)",
3115 .insns = {
3116 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
3117 offsetof(struct __sk_buff, data)),
3118 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
3119 offsetof(struct __sk_buff, data_end)),
3120 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
3121 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
3122 BPF_JMP_REG(BPF_JLT, BPF_REG_0, BPF_REG_3, 3),
3123 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
3124 BPF_MOV64_IMM(BPF_REG_0, 0),
3125 BPF_EXIT_INSN(),
3126 BPF_JMP_IMM(BPF_JA, 0, 0, -3),
3127 },
3128 .result = REJECT,
3129 .errstr = "invalid access to packet",
3130 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
3131 },
3132 {
3133 "direct packet access: test27 (marking on <=, good access)",
3134 .insns = {
3135 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
3136 offsetof(struct __sk_buff, data)),
3137 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
3138 offsetof(struct __sk_buff, data_end)),
3139 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
3140 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
3141 BPF_JMP_REG(BPF_JLE, BPF_REG_3, BPF_REG_0, 1),
3142 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
3143 BPF_MOV64_IMM(BPF_REG_0, 1),
3144 BPF_EXIT_INSN(),
3145 },
3146 .result = ACCEPT,
3147 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
3148 },
3149 {
3150 "direct packet access: test28 (marking on <=, bad access)",
3151 .insns = {
3152 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
3153 offsetof(struct __sk_buff, data)),
3154 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
3155 offsetof(struct __sk_buff, data_end)),
3156 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
3157 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
3158 BPF_JMP_REG(BPF_JLE, BPF_REG_3, BPF_REG_0, 2),
3159 BPF_MOV64_IMM(BPF_REG_0, 1),
3160 BPF_EXIT_INSN(),
3161 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
3162 BPF_JMP_IMM(BPF_JA, 0, 0, -4),
3163 },
3164 .result = REJECT,
3165 .errstr = "invalid access to packet",
3166 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
3167 },
3168 {
3169 "helper access to packet: test1, valid packet_ptr range",
3170 .insns = {
3171 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
3172 offsetof(struct xdp_md, data)),
3173 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
3174 offsetof(struct xdp_md, data_end)),
3175 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
3176 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
3177 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 5),
3178 BPF_LD_MAP_FD(BPF_REG_1, 0),
3179 BPF_MOV64_REG(BPF_REG_3, BPF_REG_2),
3180 BPF_MOV64_IMM(BPF_REG_4, 0),
3181 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3182 BPF_FUNC_map_update_elem),
3183 BPF_MOV64_IMM(BPF_REG_0, 0),
3184 BPF_EXIT_INSN(),
3185 },
3186 .fixup_map1 = { 5 },
3187 .result_unpriv = ACCEPT,
3188 .result = ACCEPT,
3189 .prog_type = BPF_PROG_TYPE_XDP,
3190 },
3191 {
3192 "helper access to packet: test2, unchecked packet_ptr",
3193 .insns = {
3194 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
3195 offsetof(struct xdp_md, data)),
3196 BPF_LD_MAP_FD(BPF_REG_1, 0),
3197 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3198 BPF_FUNC_map_lookup_elem),
3199 BPF_MOV64_IMM(BPF_REG_0, 0),
3200 BPF_EXIT_INSN(),
3201 },
3202 .fixup_map1 = { 1 },
3203 .result = REJECT,
3204 .errstr = "invalid access to packet",
3205 .prog_type = BPF_PROG_TYPE_XDP,
3206 },
3207 {
3208 "helper access to packet: test3, variable add",
3209 .insns = {
3210 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
3211 offsetof(struct xdp_md, data)),
3212 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
3213 offsetof(struct xdp_md, data_end)),
3214 BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
3215 BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 8),
3216 BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 10),
3217 BPF_LDX_MEM(BPF_B, BPF_REG_5, BPF_REG_2, 0),
3218 BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
3219 BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_5),
3220 BPF_MOV64_REG(BPF_REG_5, BPF_REG_4),
3221 BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 8),
3222 BPF_JMP_REG(BPF_JGT, BPF_REG_5, BPF_REG_3, 4),
3223 BPF_LD_MAP_FD(BPF_REG_1, 0),
3224 BPF_MOV64_REG(BPF_REG_2, BPF_REG_4),
3225 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3226 BPF_FUNC_map_lookup_elem),
3227 BPF_MOV64_IMM(BPF_REG_0, 0),
3228 BPF_EXIT_INSN(),
3229 },
3230 .fixup_map1 = { 11 },
3231 .result = ACCEPT,
3232 .prog_type = BPF_PROG_TYPE_XDP,
3233 },
3234 {
3235 "helper access to packet: test4, packet_ptr with bad range",
3236 .insns = {
3237 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
3238 offsetof(struct xdp_md, data)),
3239 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
3240 offsetof(struct xdp_md, data_end)),
3241 BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
3242 BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 4),
3243 BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 2),
3244 BPF_MOV64_IMM(BPF_REG_0, 0),
3245 BPF_EXIT_INSN(),
3246 BPF_LD_MAP_FD(BPF_REG_1, 0),
3247 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3248 BPF_FUNC_map_lookup_elem),
3249 BPF_MOV64_IMM(BPF_REG_0, 0),
3250 BPF_EXIT_INSN(),
3251 },
3252 .fixup_map1 = { 7 },
3253 .result = REJECT,
3254 .errstr = "invalid access to packet",
3255 .prog_type = BPF_PROG_TYPE_XDP,
3256 },
3257 {
3258 "helper access to packet: test5, packet_ptr with too short range",
3259 .insns = {
3260 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
3261 offsetof(struct xdp_md, data)),
3262 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
3263 offsetof(struct xdp_md, data_end)),
3264 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1),
3265 BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
3266 BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 7),
3267 BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 3),
3268 BPF_LD_MAP_FD(BPF_REG_1, 0),
3269 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3270 BPF_FUNC_map_lookup_elem),
3271 BPF_MOV64_IMM(BPF_REG_0, 0),
3272 BPF_EXIT_INSN(),
3273 },
3274 .fixup_map1 = { 6 },
3275 .result = REJECT,
3276 .errstr = "invalid access to packet",
3277 .prog_type = BPF_PROG_TYPE_XDP,
3278 },
3279 {
3280 "helper access to packet: test6, cls valid packet_ptr range",
3281 .insns = {
3282 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
3283 offsetof(struct __sk_buff, data)),
3284 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
3285 offsetof(struct __sk_buff, data_end)),
3286 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
3287 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
3288 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 5),
3289 BPF_LD_MAP_FD(BPF_REG_1, 0),
3290 BPF_MOV64_REG(BPF_REG_3, BPF_REG_2),
3291 BPF_MOV64_IMM(BPF_REG_4, 0),
3292 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3293 BPF_FUNC_map_update_elem),
3294 BPF_MOV64_IMM(BPF_REG_0, 0),
3295 BPF_EXIT_INSN(),
3296 },
3297 .fixup_map1 = { 5 },
3298 .result = ACCEPT,
3299 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
3300 },
3301 {
3302 "helper access to packet: test7, cls unchecked packet_ptr",
3303 .insns = {
3304 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
3305 offsetof(struct __sk_buff, data)),
3306 BPF_LD_MAP_FD(BPF_REG_1, 0),
3307 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3308 BPF_FUNC_map_lookup_elem),
3309 BPF_MOV64_IMM(BPF_REG_0, 0),
3310 BPF_EXIT_INSN(),
3311 },
3312 .fixup_map1 = { 1 },
3313 .result = REJECT,
3314 .errstr = "invalid access to packet",
3315 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
3316 },
3317 {
3318 "helper access to packet: test8, cls variable add",
3319 .insns = {
3320 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
3321 offsetof(struct __sk_buff, data)),
3322 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
3323 offsetof(struct __sk_buff, data_end)),
3324 BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
3325 BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 8),
3326 BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 10),
3327 BPF_LDX_MEM(BPF_B, BPF_REG_5, BPF_REG_2, 0),
3328 BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
3329 BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_5),
3330 BPF_MOV64_REG(BPF_REG_5, BPF_REG_4),
3331 BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 8),
3332 BPF_JMP_REG(BPF_JGT, BPF_REG_5, BPF_REG_3, 4),
3333 BPF_LD_MAP_FD(BPF_REG_1, 0),
3334 BPF_MOV64_REG(BPF_REG_2, BPF_REG_4),
3335 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3336 BPF_FUNC_map_lookup_elem),
3337 BPF_MOV64_IMM(BPF_REG_0, 0),
3338 BPF_EXIT_INSN(),
3339 },
3340 .fixup_map1 = { 11 },
3341 .result = ACCEPT,
3342 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
3343 },
3344 {
3345 "helper access to packet: test9, cls packet_ptr with bad range",
3346 .insns = {
3347 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
3348 offsetof(struct __sk_buff, data)),
3349 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
3350 offsetof(struct __sk_buff, data_end)),
3351 BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
3352 BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 4),
3353 BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 2),
3354 BPF_MOV64_IMM(BPF_REG_0, 0),
3355 BPF_EXIT_INSN(),
3356 BPF_LD_MAP_FD(BPF_REG_1, 0),
3357 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3358 BPF_FUNC_map_lookup_elem),
3359 BPF_MOV64_IMM(BPF_REG_0, 0),
3360 BPF_EXIT_INSN(),
3361 },
3362 .fixup_map1 = { 7 },
3363 .result = REJECT,
3364 .errstr = "invalid access to packet",
3365 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
3366 },
3367 {
3368 "helper access to packet: test10, cls packet_ptr with too short range",
3369 .insns = {
3370 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
3371 offsetof(struct __sk_buff, data)),
3372 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
3373 offsetof(struct __sk_buff, data_end)),
3374 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1),
3375 BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
3376 BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 7),
3377 BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 3),
3378 BPF_LD_MAP_FD(BPF_REG_1, 0),
3379 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3380 BPF_FUNC_map_lookup_elem),
3381 BPF_MOV64_IMM(BPF_REG_0, 0),
3382 BPF_EXIT_INSN(),
3383 },
3384 .fixup_map1 = { 6 },
3385 .result = REJECT,
3386 .errstr = "invalid access to packet",
3387 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
3388 },
3389 {
3390 "helper access to packet: test11, cls unsuitable helper 1",
3391 .insns = {
3392 BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
3393 offsetof(struct __sk_buff, data)),
3394 BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
3395 offsetof(struct __sk_buff, data_end)),
3396 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1),
3397 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
3398 BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, 7),
3399 BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_7, 4),
3400 BPF_MOV64_IMM(BPF_REG_2, 0),
3401 BPF_MOV64_IMM(BPF_REG_4, 42),
3402 BPF_MOV64_IMM(BPF_REG_5, 0),
3403 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3404 BPF_FUNC_skb_store_bytes),
3405 BPF_MOV64_IMM(BPF_REG_0, 0),
3406 BPF_EXIT_INSN(),
3407 },
3408 .result = REJECT,
3409 .errstr = "helper access to the packet",
3410 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
3411 },
3412 {
3413 "helper access to packet: test12, cls unsuitable helper 2",
3414 .insns = {
3415 BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
3416 offsetof(struct __sk_buff, data)),
3417 BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
3418 offsetof(struct __sk_buff, data_end)),
3419 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
3420 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 8),
3421 BPF_JMP_REG(BPF_JGT, BPF_REG_6, BPF_REG_7, 3),
3422 BPF_MOV64_IMM(BPF_REG_2, 0),
3423 BPF_MOV64_IMM(BPF_REG_4, 4),
3424 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3425 BPF_FUNC_skb_load_bytes),
3426 BPF_MOV64_IMM(BPF_REG_0, 0),
3427 BPF_EXIT_INSN(),
3428 },
3429 .result = REJECT,
3430 .errstr = "helper access to the packet",
3431 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
3432 },
3433 {
3434 "helper access to packet: test13, cls helper ok",
3435 .insns = {
3436 BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
3437 offsetof(struct __sk_buff, data)),
3438 BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
3439 offsetof(struct __sk_buff, data_end)),
3440 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1),
3441 BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
3442 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
3443 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6),
3444 BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
3445 BPF_MOV64_IMM(BPF_REG_2, 4),
3446 BPF_MOV64_IMM(BPF_REG_3, 0),
3447 BPF_MOV64_IMM(BPF_REG_4, 0),
3448 BPF_MOV64_IMM(BPF_REG_5, 0),
3449 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3450 BPF_FUNC_csum_diff),
3451 BPF_MOV64_IMM(BPF_REG_0, 0),
3452 BPF_EXIT_INSN(),
3453 },
3454 .result = ACCEPT,
3455 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
3456 },
3457 {
3458 "helper access to packet: test14, cls helper ok sub",
3459 .insns = {
3460 BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
3461 offsetof(struct __sk_buff, data)),
3462 BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
3463 offsetof(struct __sk_buff, data_end)),
3464 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1),
3465 BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
3466 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
3467 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6),
3468 BPF_ALU64_IMM(BPF_SUB, BPF_REG_1, 4),
3469 BPF_MOV64_IMM(BPF_REG_2, 4),
3470 BPF_MOV64_IMM(BPF_REG_3, 0),
3471 BPF_MOV64_IMM(BPF_REG_4, 0),
3472 BPF_MOV64_IMM(BPF_REG_5, 0),
3473 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3474 BPF_FUNC_csum_diff),
3475 BPF_MOV64_IMM(BPF_REG_0, 0),
3476 BPF_EXIT_INSN(),
3477 },
3478 .result = ACCEPT,
3479 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
3480 },
3481 {
3482 "helper access to packet: test15, cls helper fail sub",
3483 .insns = {
3484 BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
3485 offsetof(struct __sk_buff, data)),
3486 BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
3487 offsetof(struct __sk_buff, data_end)),
3488 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1),
3489 BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
3490 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
3491 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6),
3492 BPF_ALU64_IMM(BPF_SUB, BPF_REG_1, 12),
3493 BPF_MOV64_IMM(BPF_REG_2, 4),
3494 BPF_MOV64_IMM(BPF_REG_3, 0),
3495 BPF_MOV64_IMM(BPF_REG_4, 0),
3496 BPF_MOV64_IMM(BPF_REG_5, 0),
3497 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3498 BPF_FUNC_csum_diff),
3499 BPF_MOV64_IMM(BPF_REG_0, 0),
3500 BPF_EXIT_INSN(),
3501 },
3502 .result = REJECT,
3503 .errstr = "invalid access to packet",
3504 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
3505 },
3506 {
3507 "helper access to packet: test16, cls helper fail range 1",
3508 .insns = {
3509 BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
3510 offsetof(struct __sk_buff, data)),
3511 BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
3512 offsetof(struct __sk_buff, data_end)),
3513 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1),
3514 BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
3515 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
3516 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6),
3517 BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
3518 BPF_MOV64_IMM(BPF_REG_2, 8),
3519 BPF_MOV64_IMM(BPF_REG_3, 0),
3520 BPF_MOV64_IMM(BPF_REG_4, 0),
3521 BPF_MOV64_IMM(BPF_REG_5, 0),
3522 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3523 BPF_FUNC_csum_diff),
3524 BPF_MOV64_IMM(BPF_REG_0, 0),
3525 BPF_EXIT_INSN(),
3526 },
3527 .result = REJECT,
3528 .errstr = "invalid access to packet",
3529 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
3530 },
3531 {
3532 "helper access to packet: test17, cls helper fail range 2",
3533 .insns = {
3534 BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
3535 offsetof(struct __sk_buff, data)),
3536 BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
3537 offsetof(struct __sk_buff, data_end)),
3538 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1),
3539 BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
3540 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
3541 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6),
3542 BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
3543 BPF_MOV64_IMM(BPF_REG_2, -9),
3544 BPF_MOV64_IMM(BPF_REG_3, 0),
3545 BPF_MOV64_IMM(BPF_REG_4, 0),
3546 BPF_MOV64_IMM(BPF_REG_5, 0),
3547 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3548 BPF_FUNC_csum_diff),
3549 BPF_MOV64_IMM(BPF_REG_0, 0),
3550 BPF_EXIT_INSN(),
3551 },
3552 .result = REJECT,
3553 .errstr = "R2 min value is negative",
3554 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
3555 },
3556 {
3557 "helper access to packet: test18, cls helper fail range 3",
3558 .insns = {
3559 BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
3560 offsetof(struct __sk_buff, data)),
3561 BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
3562 offsetof(struct __sk_buff, data_end)),
3563 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1),
3564 BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
3565 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
3566 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6),
3567 BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
3568 BPF_MOV64_IMM(BPF_REG_2, ~0),
3569 BPF_MOV64_IMM(BPF_REG_3, 0),
3570 BPF_MOV64_IMM(BPF_REG_4, 0),
3571 BPF_MOV64_IMM(BPF_REG_5, 0),
3572 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3573 BPF_FUNC_csum_diff),
3574 BPF_MOV64_IMM(BPF_REG_0, 0),
3575 BPF_EXIT_INSN(),
3576 },
3577 .result = REJECT,
3578 .errstr = "R2 min value is negative",
3579 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
3580 },
3581 {
3582 "helper access to packet: test19, cls helper range zero",
3583 .insns = {
3584 BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
3585 offsetof(struct __sk_buff, data)),
3586 BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
3587 offsetof(struct __sk_buff, data_end)),
3588 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1),
3589 BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
3590 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
3591 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6),
3592 BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
3593 BPF_MOV64_IMM(BPF_REG_2, 0),
3594 BPF_MOV64_IMM(BPF_REG_3, 0),
3595 BPF_MOV64_IMM(BPF_REG_4, 0),
3596 BPF_MOV64_IMM(BPF_REG_5, 0),
3597 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3598 BPF_FUNC_csum_diff),
3599 BPF_MOV64_IMM(BPF_REG_0, 0),
3600 BPF_EXIT_INSN(),
3601 },
3602 .result = ACCEPT,
3603 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
3604 },
3605 {
3606 "helper access to packet: test20, pkt end as input",
3607 .insns = {
3608 BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
3609 offsetof(struct __sk_buff, data)),
3610 BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
3611 offsetof(struct __sk_buff, data_end)),
3612 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1),
3613 BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
3614 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
3615 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6),
3616 BPF_MOV64_REG(BPF_REG_1, BPF_REG_7),
3617 BPF_MOV64_IMM(BPF_REG_2, 4),
3618 BPF_MOV64_IMM(BPF_REG_3, 0),
3619 BPF_MOV64_IMM(BPF_REG_4, 0),
3620 BPF_MOV64_IMM(BPF_REG_5, 0),
3621 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3622 BPF_FUNC_csum_diff),
3623 BPF_MOV64_IMM(BPF_REG_0, 0),
3624 BPF_EXIT_INSN(),
3625 },
3626 .result = REJECT,
3627 .errstr = "R1 type=pkt_end expected=fp",
3628 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
3629 },
3630 {
3631 "helper access to packet: test21, wrong reg",
3632 .insns = {
3633 BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
3634 offsetof(struct __sk_buff, data)),
3635 BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
3636 offsetof(struct __sk_buff, data_end)),
3637 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1),
3638 BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
3639 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
3640 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6),
3641 BPF_MOV64_IMM(BPF_REG_2, 4),
3642 BPF_MOV64_IMM(BPF_REG_3, 0),
3643 BPF_MOV64_IMM(BPF_REG_4, 0),
3644 BPF_MOV64_IMM(BPF_REG_5, 0),
3645 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3646 BPF_FUNC_csum_diff),
3647 BPF_MOV64_IMM(BPF_REG_0, 0),
3648 BPF_EXIT_INSN(),
3649 },
3650 .result = REJECT,
3651 .errstr = "invalid access to packet",
3652 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
3653 },
3654 {
3655 "valid map access into an array with a constant",
3656 .insns = {
3657 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
3658 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
3659 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
3660 BPF_LD_MAP_FD(BPF_REG_1, 0),
3661 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3662 BPF_FUNC_map_lookup_elem),
3663 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
3664 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0,
3665 offsetof(struct test_val, foo)),
3666 BPF_EXIT_INSN(),
3667 },
3668 .fixup_map2 = { 3 },
3669 .errstr_unpriv = "R0 leaks addr",
3670 .result_unpriv = REJECT,
3671 .result = ACCEPT,
3672 },
3673 {
3674 "valid map access into an array with a register",
3675 .insns = {
3676 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
3677 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
3678 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
3679 BPF_LD_MAP_FD(BPF_REG_1, 0),
3680 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3681 BPF_FUNC_map_lookup_elem),
3682 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
3683 BPF_MOV64_IMM(BPF_REG_1, 4),
3684 BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2),
3685 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
3686 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0,
3687 offsetof(struct test_val, foo)),
3688 BPF_EXIT_INSN(),
3689 },
3690 .fixup_map2 = { 3 },
3691 .errstr_unpriv = "R0 leaks addr",
3692 .result_unpriv = REJECT,
3693 .result = ACCEPT,
3694 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
3695 },
3696 {
3697 "valid map access into an array with a variable",
3698 .insns = {
3699 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
3700 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
3701 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
3702 BPF_LD_MAP_FD(BPF_REG_1, 0),
3703 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3704 BPF_FUNC_map_lookup_elem),
3705 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5),
3706 BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0),
3707 BPF_JMP_IMM(BPF_JGE, BPF_REG_1, MAX_ENTRIES, 3),
3708 BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2),
3709 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
3710 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0,
3711 offsetof(struct test_val, foo)),
3712 BPF_EXIT_INSN(),
3713 },
3714 .fixup_map2 = { 3 },
3715 .errstr_unpriv = "R0 leaks addr",
3716 .result_unpriv = REJECT,
3717 .result = ACCEPT,
3718 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
3719 },
3720 {
3721 "valid map access into an array with a signed variable",
3722 .insns = {
3723 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
3724 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
3725 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
3726 BPF_LD_MAP_FD(BPF_REG_1, 0),
3727 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3728 BPF_FUNC_map_lookup_elem),
3729 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9),
3730 BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0),
3731 BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 0xffffffff, 1),
3732 BPF_MOV32_IMM(BPF_REG_1, 0),
3733 BPF_MOV32_IMM(BPF_REG_2, MAX_ENTRIES),
3734 BPF_JMP_REG(BPF_JSGT, BPF_REG_2, BPF_REG_1, 1),
3735 BPF_MOV32_IMM(BPF_REG_1, 0),
3736 BPF_ALU32_IMM(BPF_LSH, BPF_REG_1, 2),
3737 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
3738 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0,
3739 offsetof(struct test_val, foo)),
3740 BPF_EXIT_INSN(),
3741 },
3742 .fixup_map2 = { 3 },
3743 .errstr_unpriv = "R0 leaks addr",
3744 .result_unpriv = REJECT,
3745 .result = ACCEPT,
3746 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
3747 },
3748 {
3749 "invalid map access into an array with a constant",
3750 .insns = {
3751 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
3752 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
3753 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
3754 BPF_LD_MAP_FD(BPF_REG_1, 0),
3755 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3756 BPF_FUNC_map_lookup_elem),
3757 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
3758 BPF_ST_MEM(BPF_DW, BPF_REG_0, (MAX_ENTRIES + 1) << 2,
3759 offsetof(struct test_val, foo)),
3760 BPF_EXIT_INSN(),
3761 },
3762 .fixup_map2 = { 3 },
3763 .errstr = "invalid access to map value, value_size=48 off=48 size=8",
3764 .result = REJECT,
3765 },
3766 {
3767 "invalid map access into an array with a register",
3768 .insns = {
3769 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
3770 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
3771 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
3772 BPF_LD_MAP_FD(BPF_REG_1, 0),
3773 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3774 BPF_FUNC_map_lookup_elem),
3775 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
3776 BPF_MOV64_IMM(BPF_REG_1, MAX_ENTRIES + 1),
3777 BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2),
3778 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
3779 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0,
3780 offsetof(struct test_val, foo)),
3781 BPF_EXIT_INSN(),
3782 },
3783 .fixup_map2 = { 3 },
3784 .errstr = "R0 min value is outside of the array range",
3785 .result = REJECT,
3786 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
3787 },
3788 {
3789 "invalid map access into an array with a variable",
3790 .insns = {
3791 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
3792 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
3793 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
3794 BPF_LD_MAP_FD(BPF_REG_1, 0),
3795 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3796 BPF_FUNC_map_lookup_elem),
3797 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
3798 BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0),
3799 BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2),
3800 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
3801 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0,
3802 offsetof(struct test_val, foo)),
3803 BPF_EXIT_INSN(),
3804 },
3805 .fixup_map2 = { 3 },
3806 .errstr = "R0 unbounded memory access, make sure to bounds check any array access into a map",
3807 .result = REJECT,
3808 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
3809 },
3810 {
3811 "invalid map access into an array with no floor check",
3812 .insns = {
3813 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
3814 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
3815 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
3816 BPF_LD_MAP_FD(BPF_REG_1, 0),
3817 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3818 BPF_FUNC_map_lookup_elem),
3819 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
3820 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0),
3821 BPF_MOV32_IMM(BPF_REG_2, MAX_ENTRIES),
3822 BPF_JMP_REG(BPF_JSGT, BPF_REG_2, BPF_REG_1, 1),
3823 BPF_MOV32_IMM(BPF_REG_1, 0),
3824 BPF_ALU32_IMM(BPF_LSH, BPF_REG_1, 2),
3825 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
3826 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0,
3827 offsetof(struct test_val, foo)),
3828 BPF_EXIT_INSN(),
3829 },
3830 .fixup_map2 = { 3 },
3831 .errstr_unpriv = "R0 leaks addr",
3832 .errstr = "R0 unbounded memory access",
3833 .result_unpriv = REJECT,
3834 .result = REJECT,
3835 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
3836 },
3837 {
3838 "invalid map access into an array with a invalid max check",
3839 .insns = {
3840 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
3841 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
3842 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
3843 BPF_LD_MAP_FD(BPF_REG_1, 0),
3844 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3845 BPF_FUNC_map_lookup_elem),
3846 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
3847 BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0),
3848 BPF_MOV32_IMM(BPF_REG_2, MAX_ENTRIES + 1),
3849 BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 1),
3850 BPF_MOV32_IMM(BPF_REG_1, 0),
3851 BPF_ALU32_IMM(BPF_LSH, BPF_REG_1, 2),
3852 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
3853 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0,
3854 offsetof(struct test_val, foo)),
3855 BPF_EXIT_INSN(),
3856 },
3857 .fixup_map2 = { 3 },
3858 .errstr_unpriv = "R0 leaks addr",
3859 .errstr = "invalid access to map value, value_size=48 off=44 size=8",
3860 .result_unpriv = REJECT,
3861 .result = REJECT,
3862 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
3863 },
3864 {
3865 "invalid map access into an array with a invalid max check",
3866 .insns = {
3867 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
3868 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
3869 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
3870 BPF_LD_MAP_FD(BPF_REG_1, 0),
3871 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3872 BPF_FUNC_map_lookup_elem),
3873 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 10),
3874 BPF_MOV64_REG(BPF_REG_8, BPF_REG_0),
3875 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
3876 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
3877 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
3878 BPF_LD_MAP_FD(BPF_REG_1, 0),
3879 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3880 BPF_FUNC_map_lookup_elem),
3881 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2),
3882 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_8),
3883 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0,
3884 offsetof(struct test_val, foo)),
3885 BPF_EXIT_INSN(),
3886 },
3887 .fixup_map2 = { 3, 11 },
3888 .errstr_unpriv = "R0 pointer += pointer",
3889 .errstr = "R0 invalid mem access 'inv'",
3890 .result_unpriv = REJECT,
3891 .result = REJECT,
3892 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
3893 },
3894 {
3895 "multiple registers share map_lookup_elem result",
3896 .insns = {
3897 BPF_MOV64_IMM(BPF_REG_1, 10),
3898 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8),
3899 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
3900 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
3901 BPF_LD_MAP_FD(BPF_REG_1, 0),
3902 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3903 BPF_FUNC_map_lookup_elem),
3904 BPF_MOV64_REG(BPF_REG_4, BPF_REG_0),
3905 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
3906 BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0),
3907 BPF_EXIT_INSN(),
3908 },
3909 .fixup_map1 = { 4 },
3910 .result = ACCEPT,
3911 .prog_type = BPF_PROG_TYPE_SCHED_CLS
3912 },
3913 {
3914 "alu ops on ptr_to_map_value_or_null, 1",
3915 .insns = {
3916 BPF_MOV64_IMM(BPF_REG_1, 10),
3917 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8),
3918 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
3919 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
3920 BPF_LD_MAP_FD(BPF_REG_1, 0),
3921 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3922 BPF_FUNC_map_lookup_elem),
3923 BPF_MOV64_REG(BPF_REG_4, BPF_REG_0),
3924 BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, -2),
3925 BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 2),
3926 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
3927 BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0),
3928 BPF_EXIT_INSN(),
3929 },
3930 .fixup_map1 = { 4 },
3931 .errstr = "R4 invalid mem access",
3932 .result = REJECT,
3933 .prog_type = BPF_PROG_TYPE_SCHED_CLS
3934 },
3935 {
3936 "alu ops on ptr_to_map_value_or_null, 2",
3937 .insns = {
3938 BPF_MOV64_IMM(BPF_REG_1, 10),
3939 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8),
3940 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
3941 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
3942 BPF_LD_MAP_FD(BPF_REG_1, 0),
3943 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3944 BPF_FUNC_map_lookup_elem),
3945 BPF_MOV64_REG(BPF_REG_4, BPF_REG_0),
3946 BPF_ALU64_IMM(BPF_AND, BPF_REG_4, -1),
3947 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
3948 BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0),
3949 BPF_EXIT_INSN(),
3950 },
3951 .fixup_map1 = { 4 },
3952 .errstr = "R4 invalid mem access",
3953 .result = REJECT,
3954 .prog_type = BPF_PROG_TYPE_SCHED_CLS
3955 },
3956 {
3957 "alu ops on ptr_to_map_value_or_null, 3",
3958 .insns = {
3959 BPF_MOV64_IMM(BPF_REG_1, 10),
3960 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8),
3961 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
3962 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
3963 BPF_LD_MAP_FD(BPF_REG_1, 0),
3964 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3965 BPF_FUNC_map_lookup_elem),
3966 BPF_MOV64_REG(BPF_REG_4, BPF_REG_0),
3967 BPF_ALU64_IMM(BPF_LSH, BPF_REG_4, 1),
3968 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
3969 BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0),
3970 BPF_EXIT_INSN(),
3971 },
3972 .fixup_map1 = { 4 },
3973 .errstr = "R4 invalid mem access",
3974 .result = REJECT,
3975 .prog_type = BPF_PROG_TYPE_SCHED_CLS
3976 },
3977 {
3978 "invalid memory access with multiple map_lookup_elem calls",
3979 .insns = {
3980 BPF_MOV64_IMM(BPF_REG_1, 10),
3981 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8),
3982 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
3983 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
3984 BPF_LD_MAP_FD(BPF_REG_1, 0),
3985 BPF_MOV64_REG(BPF_REG_8, BPF_REG_1),
3986 BPF_MOV64_REG(BPF_REG_7, BPF_REG_2),
3987 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3988 BPF_FUNC_map_lookup_elem),
3989 BPF_MOV64_REG(BPF_REG_4, BPF_REG_0),
3990 BPF_MOV64_REG(BPF_REG_1, BPF_REG_8),
3991 BPF_MOV64_REG(BPF_REG_2, BPF_REG_7),
3992 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3993 BPF_FUNC_map_lookup_elem),
3994 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
3995 BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0),
3996 BPF_EXIT_INSN(),
3997 },
3998 .fixup_map1 = { 4 },
3999 .result = REJECT,
4000 .errstr = "R4 !read_ok",
4001 .prog_type = BPF_PROG_TYPE_SCHED_CLS
4002 },
4003 {
4004 "valid indirect map_lookup_elem access with 2nd lookup in branch",
4005 .insns = {
4006 BPF_MOV64_IMM(BPF_REG_1, 10),
4007 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8),
4008 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4009 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4010 BPF_LD_MAP_FD(BPF_REG_1, 0),
4011 BPF_MOV64_REG(BPF_REG_8, BPF_REG_1),
4012 BPF_MOV64_REG(BPF_REG_7, BPF_REG_2),
4013 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
4014 BPF_FUNC_map_lookup_elem),
4015 BPF_MOV64_IMM(BPF_REG_2, 10),
4016 BPF_JMP_IMM(BPF_JNE, BPF_REG_2, 0, 3),
4017 BPF_MOV64_REG(BPF_REG_1, BPF_REG_8),
4018 BPF_MOV64_REG(BPF_REG_2, BPF_REG_7),
4019 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
4020 BPF_FUNC_map_lookup_elem),
4021 BPF_MOV64_REG(BPF_REG_4, BPF_REG_0),
4022 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
4023 BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0),
4024 BPF_EXIT_INSN(),
4025 },
4026 .fixup_map1 = { 4 },
4027 .result = ACCEPT,
4028 .prog_type = BPF_PROG_TYPE_SCHED_CLS
4029 },
4030 {
4031 "invalid map access from else condition",
4032 .insns = {
4033 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
4034 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4035 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4036 BPF_LD_MAP_FD(BPF_REG_1, 0),
4037 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
4038 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6),
4039 BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0),
4040 BPF_JMP_IMM(BPF_JGE, BPF_REG_1, MAX_ENTRIES-1, 1),
4041 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 1),
4042 BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2),
4043 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
4044 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, offsetof(struct test_val, foo)),
4045 BPF_EXIT_INSN(),
4046 },
4047 .fixup_map2 = { 3 },
4048 .errstr = "R0 unbounded memory access",
4049 .result = REJECT,
4050 .errstr_unpriv = "R0 leaks addr",
4051 .result_unpriv = REJECT,
4052 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
4053 },
4054 {
4055 "constant register |= constant should keep constant type",
4056 .insns = {
4057 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
4058 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -48),
4059 BPF_MOV64_IMM(BPF_REG_2, 34),
4060 BPF_ALU64_IMM(BPF_OR, BPF_REG_2, 13),
4061 BPF_MOV64_IMM(BPF_REG_3, 0),
4062 BPF_EMIT_CALL(BPF_FUNC_probe_read),
4063 BPF_EXIT_INSN(),
4064 },
4065 .result = ACCEPT,
4066 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4067 },
4068 {
4069 "constant register |= constant should not bypass stack boundary checks",
4070 .insns = {
4071 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
4072 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -48),
4073 BPF_MOV64_IMM(BPF_REG_2, 34),
4074 BPF_ALU64_IMM(BPF_OR, BPF_REG_2, 24),
4075 BPF_MOV64_IMM(BPF_REG_3, 0),
4076 BPF_EMIT_CALL(BPF_FUNC_probe_read),
4077 BPF_EXIT_INSN(),
4078 },
4079 .errstr = "invalid stack type R1 off=-48 access_size=58",
4080 .result = REJECT,
4081 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4082 },
4083 {
4084 "constant register |= constant register should keep constant type",
4085 .insns = {
4086 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
4087 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -48),
4088 BPF_MOV64_IMM(BPF_REG_2, 34),
4089 BPF_MOV64_IMM(BPF_REG_4, 13),
4090 BPF_ALU64_REG(BPF_OR, BPF_REG_2, BPF_REG_4),
4091 BPF_MOV64_IMM(BPF_REG_3, 0),
4092 BPF_EMIT_CALL(BPF_FUNC_probe_read),
4093 BPF_EXIT_INSN(),
4094 },
4095 .result = ACCEPT,
4096 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4097 },
4098 {
4099 "constant register |= constant register should not bypass stack boundary checks",
4100 .insns = {
4101 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
4102 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -48),
4103 BPF_MOV64_IMM(BPF_REG_2, 34),
4104 BPF_MOV64_IMM(BPF_REG_4, 24),
4105 BPF_ALU64_REG(BPF_OR, BPF_REG_2, BPF_REG_4),
4106 BPF_MOV64_IMM(BPF_REG_3, 0),
4107 BPF_EMIT_CALL(BPF_FUNC_probe_read),
4108 BPF_EXIT_INSN(),
4109 },
4110 .errstr = "invalid stack type R1 off=-48 access_size=58",
4111 .result = REJECT,
4112 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4113 },
4114 {
4115 "invalid direct packet write for LWT_IN",
4116 .insns = {
4117 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
4118 offsetof(struct __sk_buff, data)),
4119 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
4120 offsetof(struct __sk_buff, data_end)),
4121 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
4122 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
4123 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
4124 BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0),
4125 BPF_MOV64_IMM(BPF_REG_0, 0),
4126 BPF_EXIT_INSN(),
4127 },
4128 .errstr = "cannot write into packet",
4129 .result = REJECT,
4130 .prog_type = BPF_PROG_TYPE_LWT_IN,
4131 },
4132 {
4133 "invalid direct packet write for LWT_OUT",
4134 .insns = {
4135 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
4136 offsetof(struct __sk_buff, data)),
4137 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
4138 offsetof(struct __sk_buff, data_end)),
4139 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
4140 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
4141 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
4142 BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0),
4143 BPF_MOV64_IMM(BPF_REG_0, 0),
4144 BPF_EXIT_INSN(),
4145 },
4146 .errstr = "cannot write into packet",
4147 .result = REJECT,
4148 .prog_type = BPF_PROG_TYPE_LWT_OUT,
4149 },
4150 {
4151 "direct packet write for LWT_XMIT",
4152 .insns = {
4153 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
4154 offsetof(struct __sk_buff, data)),
4155 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
4156 offsetof(struct __sk_buff, data_end)),
4157 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
4158 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
4159 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
4160 BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0),
4161 BPF_MOV64_IMM(BPF_REG_0, 0),
4162 BPF_EXIT_INSN(),
4163 },
4164 .result = ACCEPT,
4165 .prog_type = BPF_PROG_TYPE_LWT_XMIT,
4166 },
4167 {
4168 "direct packet read for LWT_IN",
4169 .insns = {
4170 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
4171 offsetof(struct __sk_buff, data)),
4172 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
4173 offsetof(struct __sk_buff, data_end)),
4174 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
4175 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
4176 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
4177 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
4178 BPF_MOV64_IMM(BPF_REG_0, 0),
4179 BPF_EXIT_INSN(),
4180 },
4181 .result = ACCEPT,
4182 .prog_type = BPF_PROG_TYPE_LWT_IN,
4183 },
4184 {
4185 "direct packet read for LWT_OUT",
4186 .insns = {
4187 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
4188 offsetof(struct __sk_buff, data)),
4189 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
4190 offsetof(struct __sk_buff, data_end)),
4191 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
4192 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
4193 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
4194 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
4195 BPF_MOV64_IMM(BPF_REG_0, 0),
4196 BPF_EXIT_INSN(),
4197 },
4198 .result = ACCEPT,
4199 .prog_type = BPF_PROG_TYPE_LWT_OUT,
4200 },
4201 {
4202 "direct packet read for LWT_XMIT",
4203 .insns = {
4204 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
4205 offsetof(struct __sk_buff, data)),
4206 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
4207 offsetof(struct __sk_buff, data_end)),
4208 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
4209 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
4210 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
4211 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
4212 BPF_MOV64_IMM(BPF_REG_0, 0),
4213 BPF_EXIT_INSN(),
4214 },
4215 .result = ACCEPT,
4216 .prog_type = BPF_PROG_TYPE_LWT_XMIT,
4217 },
4218 {
4219 "overlapping checks for direct packet access",
4220 .insns = {
4221 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
4222 offsetof(struct __sk_buff, data)),
4223 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
4224 offsetof(struct __sk_buff, data_end)),
4225 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
4226 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
4227 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 4),
4228 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
4229 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 6),
4230 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 1),
4231 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_2, 6),
4232 BPF_MOV64_IMM(BPF_REG_0, 0),
4233 BPF_EXIT_INSN(),
4234 },
4235 .result = ACCEPT,
4236 .prog_type = BPF_PROG_TYPE_LWT_XMIT,
4237 },
4238 {
4239 "invalid access of tc_classid for LWT_IN",
4240 .insns = {
4241 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
4242 offsetof(struct __sk_buff, tc_classid)),
4243 BPF_EXIT_INSN(),
4244 },
4245 .result = REJECT,
4246 .errstr = "invalid bpf_context access",
4247 },
4248 {
4249 "invalid access of tc_classid for LWT_OUT",
4250 .insns = {
4251 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
4252 offsetof(struct __sk_buff, tc_classid)),
4253 BPF_EXIT_INSN(),
4254 },
4255 .result = REJECT,
4256 .errstr = "invalid bpf_context access",
4257 },
4258 {
4259 "invalid access of tc_classid for LWT_XMIT",
4260 .insns = {
4261 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
4262 offsetof(struct __sk_buff, tc_classid)),
4263 BPF_EXIT_INSN(),
4264 },
4265 .result = REJECT,
4266 .errstr = "invalid bpf_context access",
4267 },
4268 {
4269 "leak pointer into ctx 1",
4270 .insns = {
4271 BPF_MOV64_IMM(BPF_REG_0, 0),
4272 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
4273 offsetof(struct __sk_buff, cb[0])),
4274 BPF_LD_MAP_FD(BPF_REG_2, 0),
4275 BPF_STX_XADD(BPF_DW, BPF_REG_1, BPF_REG_2,
4276 offsetof(struct __sk_buff, cb[0])),
4277 BPF_EXIT_INSN(),
4278 },
4279 .fixup_map1 = { 2 },
4280 .errstr_unpriv = "R2 leaks addr into mem",
4281 .result_unpriv = REJECT,
4282 .result = ACCEPT,
4283 },
4284 {
4285 "leak pointer into ctx 2",
4286 .insns = {
4287 BPF_MOV64_IMM(BPF_REG_0, 0),
4288 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
4289 offsetof(struct __sk_buff, cb[0])),
4290 BPF_STX_XADD(BPF_DW, BPF_REG_1, BPF_REG_10,
4291 offsetof(struct __sk_buff, cb[0])),
4292 BPF_EXIT_INSN(),
4293 },
4294 .errstr_unpriv = "R10 leaks addr into mem",
4295 .result_unpriv = REJECT,
4296 .result = ACCEPT,
4297 },
4298 {
4299 "leak pointer into ctx 3",
4300 .insns = {
4301 BPF_MOV64_IMM(BPF_REG_0, 0),
4302 BPF_LD_MAP_FD(BPF_REG_2, 0),
4303 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2,
4304 offsetof(struct __sk_buff, cb[0])),
4305 BPF_EXIT_INSN(),
4306 },
4307 .fixup_map1 = { 1 },
4308 .errstr_unpriv = "R2 leaks addr into ctx",
4309 .result_unpriv = REJECT,
4310 .result = ACCEPT,
4311 },
4312 {
4313 "leak pointer into map val",
4314 .insns = {
4315 BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
4316 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
4317 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4318 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4319 BPF_LD_MAP_FD(BPF_REG_1, 0),
4320 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
4321 BPF_FUNC_map_lookup_elem),
4322 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 3),
4323 BPF_MOV64_IMM(BPF_REG_3, 0),
4324 BPF_STX_MEM(BPF_DW, BPF_REG_0, BPF_REG_3, 0),
4325 BPF_STX_XADD(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
4326 BPF_MOV64_IMM(BPF_REG_0, 0),
4327 BPF_EXIT_INSN(),
4328 },
4329 .fixup_map1 = { 4 },
4330 .errstr_unpriv = "R6 leaks addr into mem",
4331 .result_unpriv = REJECT,
4332 .result = ACCEPT,
4333 },
4334 {
4335 "helper access to map: full range",
4336 .insns = {
4337 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4338 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4339 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4340 BPF_LD_MAP_FD(BPF_REG_1, 0),
4341 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4342 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
4343 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4344 BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val)),
4345 BPF_MOV64_IMM(BPF_REG_3, 0),
4346 BPF_EMIT_CALL(BPF_FUNC_probe_read),
4347 BPF_EXIT_INSN(),
4348 },
4349 .fixup_map2 = { 3 },
4350 .result = ACCEPT,
4351 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4352 },
4353 {
4354 "helper access to map: partial range",
4355 .insns = {
4356 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4357 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4358 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4359 BPF_LD_MAP_FD(BPF_REG_1, 0),
4360 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4361 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
4362 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4363 BPF_MOV64_IMM(BPF_REG_2, 8),
4364 BPF_MOV64_IMM(BPF_REG_3, 0),
4365 BPF_EMIT_CALL(BPF_FUNC_probe_read),
4366 BPF_EXIT_INSN(),
4367 },
4368 .fixup_map2 = { 3 },
4369 .result = ACCEPT,
4370 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4371 },
4372 {
4373 "helper access to map: empty range",
4374 .insns = {
4375 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4376 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4377 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4378 BPF_LD_MAP_FD(BPF_REG_1, 0),
4379 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4380 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
4381 BPF_MOV64_IMM(BPF_REG_1, 0),
4382 BPF_MOV64_REG(BPF_REG_2, BPF_REG_0),
4383 BPF_MOV64_IMM(BPF_REG_3, 0),
4384 BPF_EMIT_CALL(BPF_FUNC_probe_write_user),
4385 BPF_EXIT_INSN(),
4386 },
4387 .fixup_map2 = { 3 },
4388 .errstr = "invalid access to map value, value_size=48 off=0 size=0",
4389 .result = REJECT,
4390 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4391 },
4392 {
4393 "helper access to map: out-of-bound range",
4394 .insns = {
4395 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4396 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4397 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4398 BPF_LD_MAP_FD(BPF_REG_1, 0),
4399 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4400 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
4401 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4402 BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val) + 8),
4403 BPF_MOV64_IMM(BPF_REG_3, 0),
4404 BPF_EMIT_CALL(BPF_FUNC_probe_read),
4405 BPF_EXIT_INSN(),
4406 },
4407 .fixup_map2 = { 3 },
4408 .errstr = "invalid access to map value, value_size=48 off=0 size=56",
4409 .result = REJECT,
4410 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4411 },
4412 {
4413 "helper access to map: negative range",
4414 .insns = {
4415 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4416 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4417 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4418 BPF_LD_MAP_FD(BPF_REG_1, 0),
4419 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4420 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
4421 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4422 BPF_MOV64_IMM(BPF_REG_2, -8),
4423 BPF_MOV64_IMM(BPF_REG_3, 0),
4424 BPF_EMIT_CALL(BPF_FUNC_probe_read),
4425 BPF_EXIT_INSN(),
4426 },
4427 .fixup_map2 = { 3 },
4428 .errstr = "R2 min value is negative",
4429 .result = REJECT,
4430 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4431 },
4432 {
4433 "helper access to adjusted map (via const imm): full range",
4434 .insns = {
4435 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4436 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4437 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4438 BPF_LD_MAP_FD(BPF_REG_1, 0),
4439 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4440 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5),
4441 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4442 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1,
4443 offsetof(struct test_val, foo)),
4444 BPF_MOV64_IMM(BPF_REG_2,
4445 sizeof(struct test_val) -
4446 offsetof(struct test_val, foo)),
4447 BPF_MOV64_IMM(BPF_REG_3, 0),
4448 BPF_EMIT_CALL(BPF_FUNC_probe_read),
4449 BPF_EXIT_INSN(),
4450 },
4451 .fixup_map2 = { 3 },
4452 .result = ACCEPT,
4453 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4454 },
4455 {
4456 "helper access to adjusted map (via const imm): partial range",
4457 .insns = {
4458 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4459 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4460 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4461 BPF_LD_MAP_FD(BPF_REG_1, 0),
4462 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4463 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5),
4464 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4465 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1,
4466 offsetof(struct test_val, foo)),
4467 BPF_MOV64_IMM(BPF_REG_2, 8),
4468 BPF_MOV64_IMM(BPF_REG_3, 0),
4469 BPF_EMIT_CALL(BPF_FUNC_probe_read),
4470 BPF_EXIT_INSN(),
4471 },
4472 .fixup_map2 = { 3 },
4473 .result = ACCEPT,
4474 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4475 },
4476 {
4477 "helper access to adjusted map (via const imm): empty range",
4478 .insns = {
4479 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4480 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4481 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4482 BPF_LD_MAP_FD(BPF_REG_1, 0),
4483 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4484 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5),
4485 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4486 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1,
4487 offsetof(struct test_val, foo)),
4488 BPF_MOV64_REG(BPF_REG_2, BPF_REG_1),
4489 BPF_MOV64_IMM(BPF_REG_1, 0),
4490 BPF_MOV64_IMM(BPF_REG_3, 0),
4491 BPF_EMIT_CALL(BPF_FUNC_probe_write_user),
4492 BPF_EXIT_INSN(),
4493 },
4494 .fixup_map2 = { 3 },
4495 .errstr = "invalid access to map value, value_size=48 off=4 size=0",
4496 .result = REJECT,
4497 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4498 },
4499 {
4500 "helper access to adjusted map (via const imm): out-of-bound range",
4501 .insns = {
4502 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4503 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4504 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4505 BPF_LD_MAP_FD(BPF_REG_1, 0),
4506 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4507 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5),
4508 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4509 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1,
4510 offsetof(struct test_val, foo)),
4511 BPF_MOV64_IMM(BPF_REG_2,
4512 sizeof(struct test_val) -
4513 offsetof(struct test_val, foo) + 8),
4514 BPF_MOV64_IMM(BPF_REG_3, 0),
4515 BPF_EMIT_CALL(BPF_FUNC_probe_read),
4516 BPF_EXIT_INSN(),
4517 },
4518 .fixup_map2 = { 3 },
4519 .errstr = "invalid access to map value, value_size=48 off=4 size=52",
4520 .result = REJECT,
4521 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4522 },
4523 {
4524 "helper access to adjusted map (via const imm): negative range (> adjustment)",
4525 .insns = {
4526 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4527 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4528 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4529 BPF_LD_MAP_FD(BPF_REG_1, 0),
4530 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4531 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5),
4532 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4533 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1,
4534 offsetof(struct test_val, foo)),
4535 BPF_MOV64_IMM(BPF_REG_2, -8),
4536 BPF_MOV64_IMM(BPF_REG_3, 0),
4537 BPF_EMIT_CALL(BPF_FUNC_probe_read),
4538 BPF_EXIT_INSN(),
4539 },
4540 .fixup_map2 = { 3 },
4541 .errstr = "R2 min value is negative",
4542 .result = REJECT,
4543 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4544 },
4545 {
4546 "helper access to adjusted map (via const imm): negative range (< adjustment)",
4547 .insns = {
4548 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4549 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4550 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4551 BPF_LD_MAP_FD(BPF_REG_1, 0),
4552 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4553 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5),
4554 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4555 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1,
4556 offsetof(struct test_val, foo)),
4557 BPF_MOV64_IMM(BPF_REG_2, -1),
4558 BPF_MOV64_IMM(BPF_REG_3, 0),
4559 BPF_EMIT_CALL(BPF_FUNC_probe_read),
4560 BPF_EXIT_INSN(),
4561 },
4562 .fixup_map2 = { 3 },
4563 .errstr = "R2 min value is negative",
4564 .result = REJECT,
4565 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4566 },
4567 {
4568 "helper access to adjusted map (via const reg): full range",
4569 .insns = {
4570 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4571 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4572 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4573 BPF_LD_MAP_FD(BPF_REG_1, 0),
4574 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4575 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6),
4576 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4577 BPF_MOV64_IMM(BPF_REG_3,
4578 offsetof(struct test_val, foo)),
4579 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
4580 BPF_MOV64_IMM(BPF_REG_2,
4581 sizeof(struct test_val) -
4582 offsetof(struct test_val, foo)),
4583 BPF_MOV64_IMM(BPF_REG_3, 0),
4584 BPF_EMIT_CALL(BPF_FUNC_probe_read),
4585 BPF_EXIT_INSN(),
4586 },
4587 .fixup_map2 = { 3 },
4588 .result = ACCEPT,
4589 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4590 },
4591 {
4592 "helper access to adjusted map (via const reg): partial range",
4593 .insns = {
4594 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4595 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4596 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4597 BPF_LD_MAP_FD(BPF_REG_1, 0),
4598 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4599 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6),
4600 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4601 BPF_MOV64_IMM(BPF_REG_3,
4602 offsetof(struct test_val, foo)),
4603 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
4604 BPF_MOV64_IMM(BPF_REG_2, 8),
4605 BPF_MOV64_IMM(BPF_REG_3, 0),
4606 BPF_EMIT_CALL(BPF_FUNC_probe_read),
4607 BPF_EXIT_INSN(),
4608 },
4609 .fixup_map2 = { 3 },
4610 .result = ACCEPT,
4611 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4612 },
4613 {
4614 "helper access to adjusted map (via const reg): empty range",
4615 .insns = {
4616 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4617 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4618 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4619 BPF_LD_MAP_FD(BPF_REG_1, 0),
4620 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4621 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6),
4622 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4623 BPF_MOV64_IMM(BPF_REG_3, 0),
4624 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
4625 BPF_MOV64_REG(BPF_REG_2, BPF_REG_1),
4626 BPF_MOV64_IMM(BPF_REG_1, 0),
4627 BPF_MOV64_IMM(BPF_REG_3, 0),
4628 BPF_EMIT_CALL(BPF_FUNC_probe_write_user),
4629 BPF_EXIT_INSN(),
4630 },
4631 .fixup_map2 = { 3 },
4632 .errstr = "R2 min value is outside of the array range",
4633 .result = REJECT,
4634 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4635 },
4636 {
4637 "helper access to adjusted map (via const reg): out-of-bound range",
4638 .insns = {
4639 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4640 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4641 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4642 BPF_LD_MAP_FD(BPF_REG_1, 0),
4643 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4644 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6),
4645 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4646 BPF_MOV64_IMM(BPF_REG_3,
4647 offsetof(struct test_val, foo)),
4648 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
4649 BPF_MOV64_IMM(BPF_REG_2,
4650 sizeof(struct test_val) -
4651 offsetof(struct test_val, foo) + 8),
4652 BPF_MOV64_IMM(BPF_REG_3, 0),
4653 BPF_EMIT_CALL(BPF_FUNC_probe_read),
4654 BPF_EXIT_INSN(),
4655 },
4656 .fixup_map2 = { 3 },
4657 .errstr = "invalid access to map value, value_size=48 off=4 size=52",
4658 .result = REJECT,
4659 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4660 },
4661 {
4662 "helper access to adjusted map (via const reg): negative range (> adjustment)",
4663 .insns = {
4664 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4665 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4666 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4667 BPF_LD_MAP_FD(BPF_REG_1, 0),
4668 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4669 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6),
4670 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4671 BPF_MOV64_IMM(BPF_REG_3,
4672 offsetof(struct test_val, foo)),
4673 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
4674 BPF_MOV64_IMM(BPF_REG_2, -8),
4675 BPF_MOV64_IMM(BPF_REG_3, 0),
4676 BPF_EMIT_CALL(BPF_FUNC_probe_read),
4677 BPF_EXIT_INSN(),
4678 },
4679 .fixup_map2 = { 3 },
4680 .errstr = "R2 min value is negative",
4681 .result = REJECT,
4682 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4683 },
4684 {
4685 "helper access to adjusted map (via const reg): negative range (< adjustment)",
4686 .insns = {
4687 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4688 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4689 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4690 BPF_LD_MAP_FD(BPF_REG_1, 0),
4691 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4692 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6),
4693 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4694 BPF_MOV64_IMM(BPF_REG_3,
4695 offsetof(struct test_val, foo)),
4696 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
4697 BPF_MOV64_IMM(BPF_REG_2, -1),
4698 BPF_MOV64_IMM(BPF_REG_3, 0),
4699 BPF_EMIT_CALL(BPF_FUNC_probe_read),
4700 BPF_EXIT_INSN(),
4701 },
4702 .fixup_map2 = { 3 },
4703 .errstr = "R2 min value is negative",
4704 .result = REJECT,
4705 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4706 },
4707 {
4708 "helper access to adjusted map (via variable): full range",
4709 .insns = {
4710 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4711 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4712 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4713 BPF_LD_MAP_FD(BPF_REG_1, 0),
4714 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4715 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
4716 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4717 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0),
4718 BPF_JMP_IMM(BPF_JGT, BPF_REG_3,
4719 offsetof(struct test_val, foo), 4),
4720 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
4721 BPF_MOV64_IMM(BPF_REG_2,
4722 sizeof(struct test_val) -
4723 offsetof(struct test_val, foo)),
4724 BPF_MOV64_IMM(BPF_REG_3, 0),
4725 BPF_EMIT_CALL(BPF_FUNC_probe_read),
4726 BPF_EXIT_INSN(),
4727 },
4728 .fixup_map2 = { 3 },
4729 .result = ACCEPT,
4730 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4731 },
4732 {
4733 "helper access to adjusted map (via variable): partial range",
4734 .insns = {
4735 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4736 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4737 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4738 BPF_LD_MAP_FD(BPF_REG_1, 0),
4739 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4740 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
4741 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4742 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0),
4743 BPF_JMP_IMM(BPF_JGT, BPF_REG_3,
4744 offsetof(struct test_val, foo), 4),
4745 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
4746 BPF_MOV64_IMM(BPF_REG_2, 8),
4747 BPF_MOV64_IMM(BPF_REG_3, 0),
4748 BPF_EMIT_CALL(BPF_FUNC_probe_read),
4749 BPF_EXIT_INSN(),
4750 },
4751 .fixup_map2 = { 3 },
4752 .result = ACCEPT,
4753 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4754 },
4755 {
4756 "helper access to adjusted map (via variable): empty range",
4757 .insns = {
4758 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4759 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4760 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4761 BPF_LD_MAP_FD(BPF_REG_1, 0),
4762 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4763 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
4764 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4765 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0),
4766 BPF_JMP_IMM(BPF_JGT, BPF_REG_3,
4767 offsetof(struct test_val, foo), 4),
4768 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
4769 BPF_MOV64_REG(BPF_REG_2, BPF_REG_1),
4770 BPF_MOV64_IMM(BPF_REG_1, 0),
4771 BPF_MOV64_IMM(BPF_REG_3, 0),
4772 BPF_EMIT_CALL(BPF_FUNC_probe_write_user),
4773 BPF_EXIT_INSN(),
4774 },
4775 .fixup_map2 = { 3 },
4776 .errstr = "R2 min value is outside of the array range",
4777 .result = REJECT,
4778 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4779 },
4780 {
4781 "helper access to adjusted map (via variable): no max check",
4782 .insns = {
4783 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4784 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4785 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4786 BPF_LD_MAP_FD(BPF_REG_1, 0),
4787 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4788 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6),
4789 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4790 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0),
4791 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
4792 BPF_MOV64_IMM(BPF_REG_2, 1),
4793 BPF_MOV64_IMM(BPF_REG_3, 0),
4794 BPF_EMIT_CALL(BPF_FUNC_probe_read),
4795 BPF_EXIT_INSN(),
4796 },
4797 .fixup_map2 = { 3 },
4798 .errstr = "R1 unbounded memory access",
4799 .result = REJECT,
4800 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4801 },
4802 {
4803 "helper access to adjusted map (via variable): wrong max check",
4804 .insns = {
4805 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4806 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4807 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4808 BPF_LD_MAP_FD(BPF_REG_1, 0),
4809 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4810 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
4811 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4812 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0),
4813 BPF_JMP_IMM(BPF_JGT, BPF_REG_3,
4814 offsetof(struct test_val, foo), 4),
4815 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
4816 BPF_MOV64_IMM(BPF_REG_2,
4817 sizeof(struct test_val) -
4818 offsetof(struct test_val, foo) + 1),
4819 BPF_MOV64_IMM(BPF_REG_3, 0),
4820 BPF_EMIT_CALL(BPF_FUNC_probe_read),
4821 BPF_EXIT_INSN(),
4822 },
4823 .fixup_map2 = { 3 },
4824 .errstr = "invalid access to map value, value_size=48 off=4 size=45",
4825 .result = REJECT,
4826 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4827 },
4828 {
4829 "helper access to map: bounds check using <, good access",
4830 .insns = {
4831 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4832 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4833 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4834 BPF_LD_MAP_FD(BPF_REG_1, 0),
4835 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4836 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
4837 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4838 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0),
4839 BPF_JMP_IMM(BPF_JLT, BPF_REG_3, 32, 2),
4840 BPF_MOV64_IMM(BPF_REG_0, 0),
4841 BPF_EXIT_INSN(),
4842 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
4843 BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0),
4844 BPF_MOV64_IMM(BPF_REG_0, 0),
4845 BPF_EXIT_INSN(),
4846 },
4847 .fixup_map2 = { 3 },
4848 .result = ACCEPT,
4849 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4850 },
4851 {
4852 "helper access to map: bounds check using <, bad access",
4853 .insns = {
4854 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4855 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4856 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4857 BPF_LD_MAP_FD(BPF_REG_1, 0),
4858 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4859 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
4860 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4861 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0),
4862 BPF_JMP_IMM(BPF_JLT, BPF_REG_3, 32, 4),
4863 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
4864 BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0),
4865 BPF_MOV64_IMM(BPF_REG_0, 0),
4866 BPF_EXIT_INSN(),
4867 BPF_MOV64_IMM(BPF_REG_0, 0),
4868 BPF_EXIT_INSN(),
4869 },
4870 .fixup_map2 = { 3 },
4871 .result = REJECT,
4872 .errstr = "R1 unbounded memory access",
4873 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4874 },
4875 {
4876 "helper access to map: bounds check using <=, good access",
4877 .insns = {
4878 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4879 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4880 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4881 BPF_LD_MAP_FD(BPF_REG_1, 0),
4882 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4883 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
4884 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4885 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0),
4886 BPF_JMP_IMM(BPF_JLE, BPF_REG_3, 32, 2),
4887 BPF_MOV64_IMM(BPF_REG_0, 0),
4888 BPF_EXIT_INSN(),
4889 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
4890 BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0),
4891 BPF_MOV64_IMM(BPF_REG_0, 0),
4892 BPF_EXIT_INSN(),
4893 },
4894 .fixup_map2 = { 3 },
4895 .result = ACCEPT,
4896 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4897 },
4898 {
4899 "helper access to map: bounds check using <=, bad access",
4900 .insns = {
4901 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4902 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4903 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4904 BPF_LD_MAP_FD(BPF_REG_1, 0),
4905 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4906 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
4907 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4908 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0),
4909 BPF_JMP_IMM(BPF_JLE, BPF_REG_3, 32, 4),
4910 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
4911 BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0),
4912 BPF_MOV64_IMM(BPF_REG_0, 0),
4913 BPF_EXIT_INSN(),
4914 BPF_MOV64_IMM(BPF_REG_0, 0),
4915 BPF_EXIT_INSN(),
4916 },
4917 .fixup_map2 = { 3 },
4918 .result = REJECT,
4919 .errstr = "R1 unbounded memory access",
4920 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4921 },
4922 {
4923 "helper access to map: bounds check using s<, good access",
4924 .insns = {
4925 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4926 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4927 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4928 BPF_LD_MAP_FD(BPF_REG_1, 0),
4929 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4930 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
4931 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4932 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0),
4933 BPF_JMP_IMM(BPF_JSLT, BPF_REG_3, 32, 2),
4934 BPF_MOV64_IMM(BPF_REG_0, 0),
4935 BPF_EXIT_INSN(),
4936 BPF_JMP_IMM(BPF_JSLT, BPF_REG_3, 0, -3),
4937 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
4938 BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0),
4939 BPF_MOV64_IMM(BPF_REG_0, 0),
4940 BPF_EXIT_INSN(),
4941 },
4942 .fixup_map2 = { 3 },
4943 .result = ACCEPT,
4944 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4945 },
4946 {
4947 "helper access to map: bounds check using s<, good access 2",
4948 .insns = {
4949 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4950 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4951 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4952 BPF_LD_MAP_FD(BPF_REG_1, 0),
4953 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4954 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
4955 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4956 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0),
4957 BPF_JMP_IMM(BPF_JSLT, BPF_REG_3, 32, 2),
4958 BPF_MOV64_IMM(BPF_REG_0, 0),
4959 BPF_EXIT_INSN(),
4960 BPF_JMP_IMM(BPF_JSLT, BPF_REG_3, -3, -3),
4961 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
4962 BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0),
4963 BPF_MOV64_IMM(BPF_REG_0, 0),
4964 BPF_EXIT_INSN(),
4965 },
4966 .fixup_map2 = { 3 },
4967 .result = ACCEPT,
4968 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4969 },
4970 {
4971 "helper access to map: bounds check using s<, bad access",
4972 .insns = {
4973 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4974 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4975 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4976 BPF_LD_MAP_FD(BPF_REG_1, 0),
4977 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4978 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
4979 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4980 BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_0, 0),
4981 BPF_JMP_IMM(BPF_JSLT, BPF_REG_3, 32, 2),
4982 BPF_MOV64_IMM(BPF_REG_0, 0),
4983 BPF_EXIT_INSN(),
4984 BPF_JMP_IMM(BPF_JSLT, BPF_REG_3, -3, -3),
4985 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
4986 BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0),
4987 BPF_MOV64_IMM(BPF_REG_0, 0),
4988 BPF_EXIT_INSN(),
4989 },
4990 .fixup_map2 = { 3 },
4991 .result = REJECT,
4992 .errstr = "R1 min value is negative",
4993 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4994 },
4995 {
4996 "helper access to map: bounds check using s<=, good access",
4997 .insns = {
4998 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4999 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
5000 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
5001 BPF_LD_MAP_FD(BPF_REG_1, 0),
5002 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
5003 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
5004 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
5005 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0),
5006 BPF_JMP_IMM(BPF_JSLE, BPF_REG_3, 32, 2),
5007 BPF_MOV64_IMM(BPF_REG_0, 0),
5008 BPF_EXIT_INSN(),
5009 BPF_JMP_IMM(BPF_JSLE, BPF_REG_3, 0, -3),
5010 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
5011 BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0),
5012 BPF_MOV64_IMM(BPF_REG_0, 0),
5013 BPF_EXIT_INSN(),
5014 },
5015 .fixup_map2 = { 3 },
5016 .result = ACCEPT,
5017 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
5018 },
5019 {
5020 "helper access to map: bounds check using s<=, good access 2",
5021 .insns = {
5022 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5023 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
5024 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
5025 BPF_LD_MAP_FD(BPF_REG_1, 0),
5026 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
5027 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
5028 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
5029 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0),
5030 BPF_JMP_IMM(BPF_JSLE, BPF_REG_3, 32, 2),
5031 BPF_MOV64_IMM(BPF_REG_0, 0),
5032 BPF_EXIT_INSN(),
5033 BPF_JMP_IMM(BPF_JSLE, BPF_REG_3, -3, -3),
5034 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
5035 BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0),
5036 BPF_MOV64_IMM(BPF_REG_0, 0),
5037 BPF_EXIT_INSN(),
5038 },
5039 .fixup_map2 = { 3 },
5040 .result = ACCEPT,
5041 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
5042 },
5043 {
5044 "helper access to map: bounds check using s<=, bad access",
5045 .insns = {
5046 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5047 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
5048 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
5049 BPF_LD_MAP_FD(BPF_REG_1, 0),
5050 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
5051 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
5052 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
5053 BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_0, 0),
5054 BPF_JMP_IMM(BPF_JSLE, BPF_REG_3, 32, 2),
5055 BPF_MOV64_IMM(BPF_REG_0, 0),
5056 BPF_EXIT_INSN(),
5057 BPF_JMP_IMM(BPF_JSLE, BPF_REG_3, -3, -3),
5058 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
5059 BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0),
5060 BPF_MOV64_IMM(BPF_REG_0, 0),
5061 BPF_EXIT_INSN(),
5062 },
5063 .fixup_map2 = { 3 },
5064 .result = REJECT,
5065 .errstr = "R1 min value is negative",
5066 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
5067 },
5068 {
5069 "map element value is preserved across register spilling",
5070 .insns = {
5071 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5072 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
5073 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
5074 BPF_LD_MAP_FD(BPF_REG_1, 0),
5075 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
5076 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6),
5077 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 42),
5078 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
5079 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -184),
5080 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0),
5081 BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_1, 0),
5082 BPF_ST_MEM(BPF_DW, BPF_REG_3, 0, 42),
5083 BPF_EXIT_INSN(),
5084 },
5085 .fixup_map2 = { 3 },
5086 .errstr_unpriv = "R0 leaks addr",
5087 .result = ACCEPT,
5088 .result_unpriv = REJECT,
5089 },
5090 {
5091 "map element value or null is marked on register spilling",
5092 .insns = {
5093 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5094 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
5095 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
5096 BPF_LD_MAP_FD(BPF_REG_1, 0),
5097 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
5098 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
5099 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -152),
5100 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0),
5101 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2),
5102 BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_1, 0),
5103 BPF_ST_MEM(BPF_DW, BPF_REG_3, 0, 42),
5104 BPF_EXIT_INSN(),
5105 },
5106 .fixup_map2 = { 3 },
5107 .errstr_unpriv = "R0 leaks addr",
5108 .result = ACCEPT,
5109 .result_unpriv = REJECT,
5110 },
5111 {
5112 "map element value store of cleared call register",
5113 .insns = {
5114 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5115 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
5116 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
5117 BPF_LD_MAP_FD(BPF_REG_1, 0),
5118 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
5119 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
5120 BPF_STX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 0),
5121 BPF_EXIT_INSN(),
5122 },
5123 .fixup_map2 = { 3 },
5124 .errstr_unpriv = "R1 !read_ok",
5125 .errstr = "R1 !read_ok",
5126 .result = REJECT,
5127 .result_unpriv = REJECT,
5128 },
5129 {
5130 "map element value with unaligned store",
5131 .insns = {
5132 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5133 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
5134 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
5135 BPF_LD_MAP_FD(BPF_REG_1, 0),
5136 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
5137 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 17),
5138 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 3),
5139 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 42),
5140 BPF_ST_MEM(BPF_DW, BPF_REG_0, 2, 43),
5141 BPF_ST_MEM(BPF_DW, BPF_REG_0, -2, 44),
5142 BPF_MOV64_REG(BPF_REG_8, BPF_REG_0),
5143 BPF_ST_MEM(BPF_DW, BPF_REG_8, 0, 32),
5144 BPF_ST_MEM(BPF_DW, BPF_REG_8, 2, 33),
5145 BPF_ST_MEM(BPF_DW, BPF_REG_8, -2, 34),
5146 BPF_ALU64_IMM(BPF_ADD, BPF_REG_8, 5),
5147 BPF_ST_MEM(BPF_DW, BPF_REG_8, 0, 22),
5148 BPF_ST_MEM(BPF_DW, BPF_REG_8, 4, 23),
5149 BPF_ST_MEM(BPF_DW, BPF_REG_8, -7, 24),
5150 BPF_MOV64_REG(BPF_REG_7, BPF_REG_8),
5151 BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, 3),
5152 BPF_ST_MEM(BPF_DW, BPF_REG_7, 0, 22),
5153 BPF_ST_MEM(BPF_DW, BPF_REG_7, 4, 23),
5154 BPF_ST_MEM(BPF_DW, BPF_REG_7, -4, 24),
5155 BPF_EXIT_INSN(),
5156 },
5157 .fixup_map2 = { 3 },
5158 .errstr_unpriv = "R0 leaks addr",
5159 .result = ACCEPT,
5160 .result_unpriv = REJECT,
5161 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
5162 },
5163 {
5164 "map element value with unaligned load",
5165 .insns = {
5166 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5167 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
5168 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
5169 BPF_LD_MAP_FD(BPF_REG_1, 0),
5170 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
5171 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 11),
5172 BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0),
5173 BPF_JMP_IMM(BPF_JGE, BPF_REG_1, MAX_ENTRIES, 9),
5174 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 3),
5175 BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0),
5176 BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 2),
5177 BPF_MOV64_REG(BPF_REG_8, BPF_REG_0),
5178 BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_8, 0),
5179 BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_8, 2),
5180 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 5),
5181 BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0),
5182 BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 4),
5183 BPF_EXIT_INSN(),
5184 },
5185 .fixup_map2 = { 3 },
5186 .errstr_unpriv = "R0 leaks addr",
5187 .result = ACCEPT,
5188 .result_unpriv = REJECT,
5189 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
5190 },
5191 {
5192 "map element value illegal alu op, 1",
5193 .insns = {
5194 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5195 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
5196 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
5197 BPF_LD_MAP_FD(BPF_REG_1, 0),
5198 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
5199 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2),
5200 BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 8),
5201 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22),
5202 BPF_EXIT_INSN(),
5203 },
5204 .fixup_map2 = { 3 },
5205 .errstr_unpriv = "R0 bitwise operator &= on pointer",
5206 .errstr = "invalid mem access 'inv'",
5207 .result = REJECT,
5208 .result_unpriv = REJECT,
5209 },
5210 {
5211 "map element value illegal alu op, 2",
5212 .insns = {
5213 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5214 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
5215 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
5216 BPF_LD_MAP_FD(BPF_REG_1, 0),
5217 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
5218 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2),
5219 BPF_ALU32_IMM(BPF_ADD, BPF_REG_0, 0),
5220 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22),
5221 BPF_EXIT_INSN(),
5222 },
5223 .fixup_map2 = { 3 },
5224 .errstr_unpriv = "R0 32-bit pointer arithmetic prohibited",
5225 .errstr = "invalid mem access 'inv'",
5226 .result = REJECT,
5227 .result_unpriv = REJECT,
5228 },
5229 {
5230 "map element value illegal alu op, 3",
5231 .insns = {
5232 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5233 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
5234 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
5235 BPF_LD_MAP_FD(BPF_REG_1, 0),
5236 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
5237 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2),
5238 BPF_ALU64_IMM(BPF_DIV, BPF_REG_0, 42),
5239 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22),
5240 BPF_EXIT_INSN(),
5241 },
5242 .fixup_map2 = { 3 },
5243 .errstr_unpriv = "R0 pointer arithmetic with /= operator",
5244 .errstr = "invalid mem access 'inv'",
5245 .result = REJECT,
5246 .result_unpriv = REJECT,
5247 },
5248 {
5249 "map element value illegal alu op, 4",
5250 .insns = {
5251 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5252 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
5253 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
5254 BPF_LD_MAP_FD(BPF_REG_1, 0),
5255 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
5256 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2),
5257 BPF_ENDIAN(BPF_FROM_BE, BPF_REG_0, 64),
5258 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22),
5259 BPF_EXIT_INSN(),
5260 },
5261 .fixup_map2 = { 3 },
5262 .errstr_unpriv = "R0 pointer arithmetic prohibited",
5263 .errstr = "invalid mem access 'inv'",
5264 .result = REJECT,
5265 .result_unpriv = REJECT,
5266 },
5267 {
5268 "map element value illegal alu op, 5",
5269 .insns = {
5270 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5271 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
5272 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
5273 BPF_LD_MAP_FD(BPF_REG_1, 0),
5274 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
5275 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
5276 BPF_MOV64_IMM(BPF_REG_3, 4096),
5277 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5278 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
5279 BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_0, 0),
5280 BPF_STX_XADD(BPF_DW, BPF_REG_2, BPF_REG_3, 0),
5281 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, 0),
5282 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22),
5283 BPF_EXIT_INSN(),
5284 },
5285 .fixup_map2 = { 3 },
5286 .errstr = "R0 invalid mem access 'inv'",
5287 .result = REJECT,
5288 },
5289 {
5290 "map element value is preserved across register spilling",
5291 .insns = {
5292 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5293 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
5294 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
5295 BPF_LD_MAP_FD(BPF_REG_1, 0),
5296 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
5297 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
5298 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0,
5299 offsetof(struct test_val, foo)),
5300 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 42),
5301 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
5302 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -184),
5303 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0),
5304 BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_1, 0),
5305 BPF_ST_MEM(BPF_DW, BPF_REG_3, 0, 42),
5306 BPF_EXIT_INSN(),
5307 },
5308 .fixup_map2 = { 3 },
5309 .errstr_unpriv = "R0 leaks addr",
5310 .result = ACCEPT,
5311 .result_unpriv = REJECT,
5312 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
5313 },
5314 {
5315 "helper access to variable memory: stack, bitwise AND + JMP, correct bounds",
5316 .insns = {
5317 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
5318 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64),
5319 BPF_MOV64_IMM(BPF_REG_0, 0),
5320 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -64),
5321 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -56),
5322 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -48),
5323 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -40),
5324 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -32),
5325 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -24),
5326 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -16),
5327 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8),
5328 BPF_MOV64_IMM(BPF_REG_2, 16),
5329 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128),
5330 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128),
5331 BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 64),
5332 BPF_MOV64_IMM(BPF_REG_4, 0),
5333 BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2),
5334 BPF_MOV64_IMM(BPF_REG_3, 0),
5335 BPF_EMIT_CALL(BPF_FUNC_probe_read),
5336 BPF_MOV64_IMM(BPF_REG_0, 0),
5337 BPF_EXIT_INSN(),
5338 },
5339 .result = ACCEPT,
5340 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
5341 },
5342 {
5343 "helper access to variable memory: stack, bitwise AND, zero included",
5344 .insns = {
5345 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
5346 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64),
5347 BPF_MOV64_IMM(BPF_REG_2, 16),
5348 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128),
5349 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128),
5350 BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 64),
5351 BPF_MOV64_IMM(BPF_REG_3, 0),
5352 BPF_EMIT_CALL(BPF_FUNC_probe_read),
5353 BPF_EXIT_INSN(),
5354 },
5355 .errstr = "invalid indirect read from stack off -64+0 size 64",
5356 .result = REJECT,
5357 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
5358 },
5359 {
5360 "helper access to variable memory: stack, bitwise AND + JMP, wrong max",
5361 .insns = {
5362 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
5363 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64),
5364 BPF_MOV64_IMM(BPF_REG_2, 16),
5365 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128),
5366 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128),
5367 BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 65),
5368 BPF_MOV64_IMM(BPF_REG_4, 0),
5369 BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2),
5370 BPF_MOV64_IMM(BPF_REG_3, 0),
5371 BPF_EMIT_CALL(BPF_FUNC_probe_read),
5372 BPF_MOV64_IMM(BPF_REG_0, 0),
5373 BPF_EXIT_INSN(),
5374 },
5375 .errstr = "invalid stack type R1 off=-64 access_size=65",
5376 .result = REJECT,
5377 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
5378 },
5379 {
5380 "helper access to variable memory: stack, JMP, correct bounds",
5381 .insns = {
5382 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
5383 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64),
5384 BPF_MOV64_IMM(BPF_REG_0, 0),
5385 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -64),
5386 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -56),
5387 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -48),
5388 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -40),
5389 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -32),
5390 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -24),
5391 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -16),
5392 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8),
5393 BPF_MOV64_IMM(BPF_REG_2, 16),
5394 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128),
5395 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128),
5396 BPF_JMP_IMM(BPF_JGT, BPF_REG_2, 64, 4),
5397 BPF_MOV64_IMM(BPF_REG_4, 0),
5398 BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2),
5399 BPF_MOV64_IMM(BPF_REG_3, 0),
5400 BPF_EMIT_CALL(BPF_FUNC_probe_read),
5401 BPF_MOV64_IMM(BPF_REG_0, 0),
5402 BPF_EXIT_INSN(),
5403 },
5404 .result = ACCEPT,
5405 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
5406 },
5407 {
5408 "helper access to variable memory: stack, JMP (signed), correct bounds",
5409 .insns = {
5410 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
5411 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64),
5412 BPF_MOV64_IMM(BPF_REG_0, 0),
5413 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -64),
5414 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -56),
5415 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -48),
5416 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -40),
5417 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -32),
5418 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -24),
5419 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -16),
5420 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8),
5421 BPF_MOV64_IMM(BPF_REG_2, 16),
5422 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128),
5423 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128),
5424 BPF_JMP_IMM(BPF_JSGT, BPF_REG_2, 64, 4),
5425 BPF_MOV64_IMM(BPF_REG_4, 0),
5426 BPF_JMP_REG(BPF_JSGE, BPF_REG_4, BPF_REG_2, 2),
5427 BPF_MOV64_IMM(BPF_REG_3, 0),
5428 BPF_EMIT_CALL(BPF_FUNC_probe_read),
5429 BPF_MOV64_IMM(BPF_REG_0, 0),
5430 BPF_EXIT_INSN(),
5431 },
5432 .result = ACCEPT,
5433 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
5434 },
5435 {
5436 "helper access to variable memory: stack, JMP, bounds + offset",
5437 .insns = {
5438 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
5439 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64),
5440 BPF_MOV64_IMM(BPF_REG_2, 16),
5441 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128),
5442 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128),
5443 BPF_JMP_IMM(BPF_JGT, BPF_REG_2, 64, 5),
5444 BPF_MOV64_IMM(BPF_REG_4, 0),
5445 BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 3),
5446 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1),
5447 BPF_MOV64_IMM(BPF_REG_3, 0),
5448 BPF_EMIT_CALL(BPF_FUNC_probe_read),
5449 BPF_MOV64_IMM(BPF_REG_0, 0),
5450 BPF_EXIT_INSN(),
5451 },
5452 .errstr = "invalid stack type R1 off=-64 access_size=65",
5453 .result = REJECT,
5454 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
5455 },
5456 {
5457 "helper access to variable memory: stack, JMP, wrong max",
5458 .insns = {
5459 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
5460 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64),
5461 BPF_MOV64_IMM(BPF_REG_2, 16),
5462 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128),
5463 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128),
5464 BPF_JMP_IMM(BPF_JGT, BPF_REG_2, 65, 4),
5465 BPF_MOV64_IMM(BPF_REG_4, 0),
5466 BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2),
5467 BPF_MOV64_IMM(BPF_REG_3, 0),
5468 BPF_EMIT_CALL(BPF_FUNC_probe_read),
5469 BPF_MOV64_IMM(BPF_REG_0, 0),
5470 BPF_EXIT_INSN(),
5471 },
5472 .errstr = "invalid stack type R1 off=-64 access_size=65",
5473 .result = REJECT,
5474 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
5475 },
5476 {
5477 "helper access to variable memory: stack, JMP, no max check",
5478 .insns = {
5479 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
5480 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64),
5481 BPF_MOV64_IMM(BPF_REG_2, 16),
5482 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128),
5483 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128),
5484 BPF_MOV64_IMM(BPF_REG_4, 0),
5485 BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2),
5486 BPF_MOV64_IMM(BPF_REG_3, 0),
5487 BPF_EMIT_CALL(BPF_FUNC_probe_read),
5488 BPF_MOV64_IMM(BPF_REG_0, 0),
5489 BPF_EXIT_INSN(),
5490 },
5491 /* because max wasn't checked, signed min is negative */
5492 .errstr = "R2 min value is negative, either use unsigned or 'var &= const'",
5493 .result = REJECT,
5494 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
5495 },
5496 {
5497 "helper access to variable memory: stack, JMP, no min check",
5498 .insns = {
5499 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
5500 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64),
5501 BPF_MOV64_IMM(BPF_REG_2, 16),
5502 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128),
5503 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128),
5504 BPF_JMP_IMM(BPF_JGT, BPF_REG_2, 64, 3),
5505 BPF_MOV64_IMM(BPF_REG_3, 0),
5506 BPF_EMIT_CALL(BPF_FUNC_probe_read),
5507 BPF_MOV64_IMM(BPF_REG_0, 0),
5508 BPF_EXIT_INSN(),
5509 },
5510 .errstr = "invalid indirect read from stack off -64+0 size 64",
5511 .result = REJECT,
5512 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
5513 },
5514 {
5515 "helper access to variable memory: stack, JMP (signed), no min check",
5516 .insns = {
5517 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
5518 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64),
5519 BPF_MOV64_IMM(BPF_REG_2, 16),
5520 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128),
5521 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128),
5522 BPF_JMP_IMM(BPF_JSGT, BPF_REG_2, 64, 3),
5523 BPF_MOV64_IMM(BPF_REG_3, 0),
5524 BPF_EMIT_CALL(BPF_FUNC_probe_read),
5525 BPF_MOV64_IMM(BPF_REG_0, 0),
5526 BPF_EXIT_INSN(),
5527 },
5528 .errstr = "R2 min value is negative",
5529 .result = REJECT,
5530 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
5531 },
5532 {
5533 "helper access to variable memory: map, JMP, correct bounds",
5534 .insns = {
5535 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5536 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
5537 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
5538 BPF_LD_MAP_FD(BPF_REG_1, 0),
5539 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
5540 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 10),
5541 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
5542 BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val)),
5543 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128),
5544 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128),
5545 BPF_JMP_IMM(BPF_JSGT, BPF_REG_2,
5546 sizeof(struct test_val), 4),
5547 BPF_MOV64_IMM(BPF_REG_4, 0),
5548 BPF_JMP_REG(BPF_JSGE, BPF_REG_4, BPF_REG_2, 2),
5549 BPF_MOV64_IMM(BPF_REG_3, 0),
5550 BPF_EMIT_CALL(BPF_FUNC_probe_read),
5551 BPF_MOV64_IMM(BPF_REG_0, 0),
5552 BPF_EXIT_INSN(),
5553 },
5554 .fixup_map2 = { 3 },
5555 .result = ACCEPT,
5556 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
5557 },
5558 {
5559 "helper access to variable memory: map, JMP, wrong max",
5560 .insns = {
5561 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5562 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
5563 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
5564 BPF_LD_MAP_FD(BPF_REG_1, 0),
5565 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
5566 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 10),
5567 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
5568 BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val)),
5569 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128),
5570 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128),
5571 BPF_JMP_IMM(BPF_JSGT, BPF_REG_2,
5572 sizeof(struct test_val) + 1, 4),
5573 BPF_MOV64_IMM(BPF_REG_4, 0),
5574 BPF_JMP_REG(BPF_JSGE, BPF_REG_4, BPF_REG_2, 2),
5575 BPF_MOV64_IMM(BPF_REG_3, 0),
5576 BPF_EMIT_CALL(BPF_FUNC_probe_read),
5577 BPF_MOV64_IMM(BPF_REG_0, 0),
5578 BPF_EXIT_INSN(),
5579 },
5580 .fixup_map2 = { 3 },
5581 .errstr = "invalid access to map value, value_size=48 off=0 size=49",
5582 .result = REJECT,
5583 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
5584 },
5585 {
5586 "helper access to variable memory: map adjusted, JMP, correct bounds",
5587 .insns = {
5588 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5589 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
5590 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
5591 BPF_LD_MAP_FD(BPF_REG_1, 0),
5592 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
5593 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 11),
5594 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
5595 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 20),
5596 BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val)),
5597 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128),
5598 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128),
5599 BPF_JMP_IMM(BPF_JSGT, BPF_REG_2,
5600 sizeof(struct test_val) - 20, 4),
5601 BPF_MOV64_IMM(BPF_REG_4, 0),
5602 BPF_JMP_REG(BPF_JSGE, BPF_REG_4, BPF_REG_2, 2),
5603 BPF_MOV64_IMM(BPF_REG_3, 0),
5604 BPF_EMIT_CALL(BPF_FUNC_probe_read),
5605 BPF_MOV64_IMM(BPF_REG_0, 0),
5606 BPF_EXIT_INSN(),
5607 },
5608 .fixup_map2 = { 3 },
5609 .result = ACCEPT,
5610 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
5611 },
5612 {
5613 "helper access to variable memory: map adjusted, JMP, wrong max",
5614 .insns = {
5615 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5616 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
5617 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
5618 BPF_LD_MAP_FD(BPF_REG_1, 0),
5619 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
5620 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 11),
5621 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
5622 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 20),
5623 BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val)),
5624 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128),
5625 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128),
5626 BPF_JMP_IMM(BPF_JSGT, BPF_REG_2,
5627 sizeof(struct test_val) - 19, 4),
5628 BPF_MOV64_IMM(BPF_REG_4, 0),
5629 BPF_JMP_REG(BPF_JSGE, BPF_REG_4, BPF_REG_2, 2),
5630 BPF_MOV64_IMM(BPF_REG_3, 0),
5631 BPF_EMIT_CALL(BPF_FUNC_probe_read),
5632 BPF_MOV64_IMM(BPF_REG_0, 0),
5633 BPF_EXIT_INSN(),
5634 },
5635 .fixup_map2 = { 3 },
5636 .errstr = "R1 min value is outside of the array range",
5637 .result = REJECT,
5638 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
5639 },
5640 {
5641 "helper access to variable memory: size = 0 allowed on NULL",
5642 .insns = {
5643 BPF_MOV64_IMM(BPF_REG_1, 0),
5644 BPF_MOV64_IMM(BPF_REG_2, 0),
5645 BPF_MOV64_IMM(BPF_REG_3, 0),
5646 BPF_MOV64_IMM(BPF_REG_4, 0),
5647 BPF_MOV64_IMM(BPF_REG_5, 0),
5648 BPF_EMIT_CALL(BPF_FUNC_csum_diff),
5649 BPF_EXIT_INSN(),
5650 },
5651 .result = ACCEPT,
5652 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
5653 },
5654 {
5655 "helper access to variable memory: size > 0 not allowed on NULL",
5656 .insns = {
5657 BPF_MOV64_IMM(BPF_REG_1, 0),
5658 BPF_MOV64_IMM(BPF_REG_2, 0),
5659 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128),
5660 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128),
5661 BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 64),
5662 BPF_MOV64_IMM(BPF_REG_3, 0),
5663 BPF_MOV64_IMM(BPF_REG_4, 0),
5664 BPF_MOV64_IMM(BPF_REG_5, 0),
5665 BPF_EMIT_CALL(BPF_FUNC_csum_diff),
5666 BPF_EXIT_INSN(),
5667 },
5668 .errstr = "R1 type=inv expected=fp",
5669 .result = REJECT,
5670 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
5671 },
5672 {
5673 "helper access to variable memory: size = 0 allowed on != NULL stack pointer",
5674 .insns = {
5675 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
5676 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
5677 BPF_MOV64_IMM(BPF_REG_2, 0),
5678 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, 0),
5679 BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 8),
5680 BPF_MOV64_IMM(BPF_REG_3, 0),
5681 BPF_MOV64_IMM(BPF_REG_4, 0),
5682 BPF_MOV64_IMM(BPF_REG_5, 0),
5683 BPF_EMIT_CALL(BPF_FUNC_csum_diff),
5684 BPF_EXIT_INSN(),
5685 },
5686 .result = ACCEPT,
5687 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
5688 },
5689 {
5690 "helper access to variable memory: size = 0 allowed on != NULL map pointer",
5691 .insns = {
5692 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
5693 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5694 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
5695 BPF_LD_MAP_FD(BPF_REG_1, 0),
5696 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
5697 BPF_FUNC_map_lookup_elem),
5698 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6),
5699 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
5700 BPF_MOV64_IMM(BPF_REG_2, 0),
5701 BPF_MOV64_IMM(BPF_REG_3, 0),
5702 BPF_MOV64_IMM(BPF_REG_4, 0),
5703 BPF_MOV64_IMM(BPF_REG_5, 0),
5704 BPF_EMIT_CALL(BPF_FUNC_csum_diff),
5705 BPF_EXIT_INSN(),
5706 },
5707 .fixup_map1 = { 3 },
5708 .result = ACCEPT,
5709 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
5710 },
5711 {
5712 "helper access to variable memory: size possible = 0 allowed on != NULL stack pointer",
5713 .insns = {
5714 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
5715 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5716 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
5717 BPF_LD_MAP_FD(BPF_REG_1, 0),
5718 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
5719 BPF_FUNC_map_lookup_elem),
5720 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9),
5721 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_0, 0),
5722 BPF_JMP_IMM(BPF_JGT, BPF_REG_2, 8, 7),
5723 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
5724 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
5725 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, 0),
5726 BPF_MOV64_IMM(BPF_REG_3, 0),
5727 BPF_MOV64_IMM(BPF_REG_4, 0),
5728 BPF_MOV64_IMM(BPF_REG_5, 0),
5729 BPF_EMIT_CALL(BPF_FUNC_csum_diff),
5730 BPF_EXIT_INSN(),
5731 },
5732 .fixup_map1 = { 3 },
5733 .result = ACCEPT,
5734 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
5735 },
5736 {
5737 "helper access to variable memory: size possible = 0 allowed on != NULL map pointer",
5738 .insns = {
5739 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
5740 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5741 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
5742 BPF_LD_MAP_FD(BPF_REG_1, 0),
5743 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
5744 BPF_FUNC_map_lookup_elem),
5745 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
5746 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
5747 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_0, 0),
5748 BPF_JMP_IMM(BPF_JGT, BPF_REG_2, 8, 4),
5749 BPF_MOV64_IMM(BPF_REG_3, 0),
5750 BPF_MOV64_IMM(BPF_REG_4, 0),
5751 BPF_MOV64_IMM(BPF_REG_5, 0),
5752 BPF_EMIT_CALL(BPF_FUNC_csum_diff),
5753 BPF_EXIT_INSN(),
5754 },
5755 .fixup_map1 = { 3 },
5756 .result = ACCEPT,
5757 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
5758 },
5759 {
5760 "helper access to variable memory: size possible = 0 allowed on != NULL packet pointer",
5761 .insns = {
5762 BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
5763 offsetof(struct __sk_buff, data)),
5764 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
5765 offsetof(struct __sk_buff, data_end)),
5766 BPF_MOV64_REG(BPF_REG_0, BPF_REG_6),
5767 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
5768 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 7),
5769 BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
5770 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_6, 0),
5771 BPF_JMP_IMM(BPF_JGT, BPF_REG_2, 8, 4),
5772 BPF_MOV64_IMM(BPF_REG_3, 0),
5773 BPF_MOV64_IMM(BPF_REG_4, 0),
5774 BPF_MOV64_IMM(BPF_REG_5, 0),
5775 BPF_EMIT_CALL(BPF_FUNC_csum_diff),
5776 BPF_EXIT_INSN(),
5777 },
5778 .result = ACCEPT,
5779 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
5780 },
5781 {
5782 "helper access to variable memory: 8 bytes leak",
5783 .insns = {
5784 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
5785 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64),
5786 BPF_MOV64_IMM(BPF_REG_0, 0),
5787 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -64),
5788 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -56),
5789 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -48),
5790 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -40),
5791 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -24),
5792 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -16),
5793 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8),
5794 BPF_MOV64_IMM(BPF_REG_2, 0),
5795 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128),
5796 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128),
5797 BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 63),
5798 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1),
5799 BPF_MOV64_IMM(BPF_REG_3, 0),
5800 BPF_EMIT_CALL(BPF_FUNC_probe_read),
5801 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
5802 BPF_EXIT_INSN(),
5803 },
5804 .errstr = "invalid indirect read from stack off -64+32 size 64",
5805 .result = REJECT,
5806 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
5807 },
5808 {
5809 "helper access to variable memory: 8 bytes no leak (init memory)",
5810 .insns = {
5811 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
5812 BPF_MOV64_IMM(BPF_REG_0, 0),
5813 BPF_MOV64_IMM(BPF_REG_0, 0),
5814 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -64),
5815 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -56),
5816 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -48),
5817 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -40),
5818 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -32),
5819 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -24),
5820 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -16),
5821 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8),
5822 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64),
5823 BPF_MOV64_IMM(BPF_REG_2, 0),
5824 BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 32),
5825 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 32),
5826 BPF_MOV64_IMM(BPF_REG_3, 0),
5827 BPF_EMIT_CALL(BPF_FUNC_probe_read),
5828 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
5829 BPF_EXIT_INSN(),
5830 },
5831 .result = ACCEPT,
5832 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
5833 },
5834 {
5835 "invalid and of negative number",
5836 .insns = {
5837 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
5838 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5839 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
5840 BPF_LD_MAP_FD(BPF_REG_1, 0),
5841 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
5842 BPF_FUNC_map_lookup_elem),
5843 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
5844 BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 0),
5845 BPF_ALU64_IMM(BPF_AND, BPF_REG_1, -4),
5846 BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2),
5847 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
5848 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0,
5849 offsetof(struct test_val, foo)),
5850 BPF_EXIT_INSN(),
5851 },
5852 .fixup_map2 = { 3 },
5853 .errstr = "R0 max value is outside of the array range",
5854 .result = REJECT,
5855 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
5856 },
5857 {
5858 "invalid range check",
5859 .insns = {
5860 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
5861 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5862 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
5863 BPF_LD_MAP_FD(BPF_REG_1, 0),
5864 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
5865 BPF_FUNC_map_lookup_elem),
5866 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 12),
5867 BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0),
5868 BPF_MOV64_IMM(BPF_REG_9, 1),
5869 BPF_ALU32_IMM(BPF_MOD, BPF_REG_1, 2),
5870 BPF_ALU32_IMM(BPF_ADD, BPF_REG_1, 1),
5871 BPF_ALU32_REG(BPF_AND, BPF_REG_9, BPF_REG_1),
5872 BPF_ALU32_IMM(BPF_ADD, BPF_REG_9, 1),
5873 BPF_ALU32_IMM(BPF_RSH, BPF_REG_9, 1),
5874 BPF_MOV32_IMM(BPF_REG_3, 1),
5875 BPF_ALU32_REG(BPF_SUB, BPF_REG_3, BPF_REG_9),
5876 BPF_ALU32_IMM(BPF_MUL, BPF_REG_3, 0x10000000),
5877 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_3),
5878 BPF_STX_MEM(BPF_W, BPF_REG_0, BPF_REG_3, 0),
5879 BPF_MOV64_REG(BPF_REG_0, 0),
5880 BPF_EXIT_INSN(),
5881 },
5882 .fixup_map2 = { 3 },
5883 .errstr = "R0 max value is outside of the array range",
5884 .result = REJECT,
5885 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
5886 },
5887 {
5888 "map in map access",
5889 .insns = {
5890 BPF_ST_MEM(0, BPF_REG_10, -4, 0),
5891 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5892 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
5893 BPF_LD_MAP_FD(BPF_REG_1, 0),
5894 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
5895 BPF_FUNC_map_lookup_elem),
5896 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5),
5897 BPF_ST_MEM(0, BPF_REG_10, -4, 0),
5898 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5899 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
5900 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
5901 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
5902 BPF_FUNC_map_lookup_elem),
5903 BPF_MOV64_REG(BPF_REG_0, 0),
5904 BPF_EXIT_INSN(),
5905 },
5906 .fixup_map_in_map = { 3 },
5907 .result = ACCEPT,
5908 },
5909 {
5910 "invalid inner map pointer",
5911 .insns = {
5912 BPF_ST_MEM(0, BPF_REG_10, -4, 0),
5913 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5914 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
5915 BPF_LD_MAP_FD(BPF_REG_1, 0),
5916 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
5917 BPF_FUNC_map_lookup_elem),
5918 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6),
5919 BPF_ST_MEM(0, BPF_REG_10, -4, 0),
5920 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5921 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
5922 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
5923 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
5924 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
5925 BPF_FUNC_map_lookup_elem),
5926 BPF_MOV64_REG(BPF_REG_0, 0),
5927 BPF_EXIT_INSN(),
5928 },
5929 .fixup_map_in_map = { 3 },
5930 .errstr = "R1 type=inv expected=map_ptr",
5931 .errstr_unpriv = "R1 pointer arithmetic on CONST_PTR_TO_MAP prohibited",
5932 .result = REJECT,
5933 },
5934 {
5935 "forgot null checking on the inner map pointer",
5936 .insns = {
5937 BPF_ST_MEM(0, BPF_REG_10, -4, 0),
5938 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5939 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
5940 BPF_LD_MAP_FD(BPF_REG_1, 0),
5941 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
5942 BPF_FUNC_map_lookup_elem),
5943 BPF_ST_MEM(0, BPF_REG_10, -4, 0),
5944 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5945 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
5946 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
5947 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
5948 BPF_FUNC_map_lookup_elem),
5949 BPF_MOV64_REG(BPF_REG_0, 0),
5950 BPF_EXIT_INSN(),
5951 },
5952 .fixup_map_in_map = { 3 },
5953 .errstr = "R1 type=map_value_or_null expected=map_ptr",
5954 .result = REJECT,
5955 },
5956 {
5957 "ld_abs: check calling conv, r1",
5958 .insns = {
5959 BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
5960 BPF_MOV64_IMM(BPF_REG_1, 0),
5961 BPF_LD_ABS(BPF_W, -0x200000),
5962 BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
5963 BPF_EXIT_INSN(),
5964 },
5965 .errstr = "R1 !read_ok",
5966 .result = REJECT,
5967 },
5968 {
5969 "ld_abs: check calling conv, r2",
5970 .insns = {
5971 BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
5972 BPF_MOV64_IMM(BPF_REG_2, 0),
5973 BPF_LD_ABS(BPF_W, -0x200000),
5974 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
5975 BPF_EXIT_INSN(),
5976 },
5977 .errstr = "R2 !read_ok",
5978 .result = REJECT,
5979 },
5980 {
5981 "ld_abs: check calling conv, r3",
5982 .insns = {
5983 BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
5984 BPF_MOV64_IMM(BPF_REG_3, 0),
5985 BPF_LD_ABS(BPF_W, -0x200000),
5986 BPF_MOV64_REG(BPF_REG_0, BPF_REG_3),
5987 BPF_EXIT_INSN(),
5988 },
5989 .errstr = "R3 !read_ok",
5990 .result = REJECT,
5991 },
5992 {
5993 "ld_abs: check calling conv, r4",
5994 .insns = {
5995 BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
5996 BPF_MOV64_IMM(BPF_REG_4, 0),
5997 BPF_LD_ABS(BPF_W, -0x200000),
5998 BPF_MOV64_REG(BPF_REG_0, BPF_REG_4),
5999 BPF_EXIT_INSN(),
6000 },
6001 .errstr = "R4 !read_ok",
6002 .result = REJECT,
6003 },
6004 {
6005 "ld_abs: check calling conv, r5",
6006 .insns = {
6007 BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
6008 BPF_MOV64_IMM(BPF_REG_5, 0),
6009 BPF_LD_ABS(BPF_W, -0x200000),
6010 BPF_MOV64_REG(BPF_REG_0, BPF_REG_5),
6011 BPF_EXIT_INSN(),
6012 },
6013 .errstr = "R5 !read_ok",
6014 .result = REJECT,
6015 },
6016 {
6017 "ld_abs: check calling conv, r7",
6018 .insns = {
6019 BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
6020 BPF_MOV64_IMM(BPF_REG_7, 0),
6021 BPF_LD_ABS(BPF_W, -0x200000),
6022 BPF_MOV64_REG(BPF_REG_0, BPF_REG_7),
6023 BPF_EXIT_INSN(),
6024 },
6025 .result = ACCEPT,
6026 },
6027 {
6028 "ld_ind: check calling conv, r1",
6029 .insns = {
6030 BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
6031 BPF_MOV64_IMM(BPF_REG_1, 1),
6032 BPF_LD_IND(BPF_W, BPF_REG_1, -0x200000),
6033 BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
6034 BPF_EXIT_INSN(),
6035 },
6036 .errstr = "R1 !read_ok",
6037 .result = REJECT,
6038 },
6039 {
6040 "ld_ind: check calling conv, r2",
6041 .insns = {
6042 BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
6043 BPF_MOV64_IMM(BPF_REG_2, 1),
6044 BPF_LD_IND(BPF_W, BPF_REG_2, -0x200000),
6045 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
6046 BPF_EXIT_INSN(),
6047 },
6048 .errstr = "R2 !read_ok",
6049 .result = REJECT,
6050 },
6051 {
6052 "ld_ind: check calling conv, r3",
6053 .insns = {
6054 BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
6055 BPF_MOV64_IMM(BPF_REG_3, 1),
6056 BPF_LD_IND(BPF_W, BPF_REG_3, -0x200000),
6057 BPF_MOV64_REG(BPF_REG_0, BPF_REG_3),
6058 BPF_EXIT_INSN(),
6059 },
6060 .errstr = "R3 !read_ok",
6061 .result = REJECT,
6062 },
6063 {
6064 "ld_ind: check calling conv, r4",
6065 .insns = {
6066 BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
6067 BPF_MOV64_IMM(BPF_REG_4, 1),
6068 BPF_LD_IND(BPF_W, BPF_REG_4, -0x200000),
6069 BPF_MOV64_REG(BPF_REG_0, BPF_REG_4),
6070 BPF_EXIT_INSN(),
6071 },
6072 .errstr = "R4 !read_ok",
6073 .result = REJECT,
6074 },
6075 {
6076 "ld_ind: check calling conv, r5",
6077 .insns = {
6078 BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
6079 BPF_MOV64_IMM(BPF_REG_5, 1),
6080 BPF_LD_IND(BPF_W, BPF_REG_5, -0x200000),
6081 BPF_MOV64_REG(BPF_REG_0, BPF_REG_5),
6082 BPF_EXIT_INSN(),
6083 },
6084 .errstr = "R5 !read_ok",
6085 .result = REJECT,
6086 },
6087 {
6088 "ld_ind: check calling conv, r7",
6089 .insns = {
6090 BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
6091 BPF_MOV64_IMM(BPF_REG_7, 1),
6092 BPF_LD_IND(BPF_W, BPF_REG_7, -0x200000),
6093 BPF_MOV64_REG(BPF_REG_0, BPF_REG_7),
6094 BPF_EXIT_INSN(),
6095 },
6096 .result = ACCEPT,
6097 },
6098 {
6099 "check bpf_perf_event_data->sample_period byte load permitted",
6100 .insns = {
6101 BPF_MOV64_IMM(BPF_REG_0, 0),
6102 #if __BYTE_ORDER == __LITTLE_ENDIAN
6103 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
6104 offsetof(struct bpf_perf_event_data, sample_period)),
6105 #else
6106 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
6107 offsetof(struct bpf_perf_event_data, sample_period) + 7),
6108 #endif
6109 BPF_EXIT_INSN(),
6110 },
6111 .result = ACCEPT,
6112 .prog_type = BPF_PROG_TYPE_PERF_EVENT,
6113 },
6114 {
6115 "check bpf_perf_event_data->sample_period half load permitted",
6116 .insns = {
6117 BPF_MOV64_IMM(BPF_REG_0, 0),
6118 #if __BYTE_ORDER == __LITTLE_ENDIAN
6119 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
6120 offsetof(struct bpf_perf_event_data, sample_period)),
6121 #else
6122 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
6123 offsetof(struct bpf_perf_event_data, sample_period) + 6),
6124 #endif
6125 BPF_EXIT_INSN(),
6126 },
6127 .result = ACCEPT,
6128 .prog_type = BPF_PROG_TYPE_PERF_EVENT,
6129 },
6130 {
6131 "check bpf_perf_event_data->sample_period word load permitted",
6132 .insns = {
6133 BPF_MOV64_IMM(BPF_REG_0, 0),
6134 #if __BYTE_ORDER == __LITTLE_ENDIAN
6135 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
6136 offsetof(struct bpf_perf_event_data, sample_period)),
6137 #else
6138 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
6139 offsetof(struct bpf_perf_event_data, sample_period) + 4),
6140 #endif
6141 BPF_EXIT_INSN(),
6142 },
6143 .result = ACCEPT,
6144 .prog_type = BPF_PROG_TYPE_PERF_EVENT,
6145 },
6146 {
6147 "check bpf_perf_event_data->sample_period dword load permitted",
6148 .insns = {
6149 BPF_MOV64_IMM(BPF_REG_0, 0),
6150 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
6151 offsetof(struct bpf_perf_event_data, sample_period)),
6152 BPF_EXIT_INSN(),
6153 },
6154 .result = ACCEPT,
6155 .prog_type = BPF_PROG_TYPE_PERF_EVENT,
6156 },
6157 {
6158 "check skb->data half load not permitted",
6159 .insns = {
6160 BPF_MOV64_IMM(BPF_REG_0, 0),
6161 #if __BYTE_ORDER == __LITTLE_ENDIAN
6162 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
6163 offsetof(struct __sk_buff, data)),
6164 #else
6165 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
6166 offsetof(struct __sk_buff, data) + 2),
6167 #endif
6168 BPF_EXIT_INSN(),
6169 },
6170 .result = REJECT,
6171 .errstr = "invalid bpf_context access",
6172 },
6173 {
6174 "check skb->tc_classid half load not permitted for lwt prog",
6175 .insns = {
6176 BPF_MOV64_IMM(BPF_REG_0, 0),
6177 #if __BYTE_ORDER == __LITTLE_ENDIAN
6178 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
6179 offsetof(struct __sk_buff, tc_classid)),
6180 #else
6181 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
6182 offsetof(struct __sk_buff, tc_classid) + 2),
6183 #endif
6184 BPF_EXIT_INSN(),
6185 },
6186 .result = REJECT,
6187 .errstr = "invalid bpf_context access",
6188 .prog_type = BPF_PROG_TYPE_LWT_IN,
6189 },
6190 {
6191 "bounds checks mixing signed and unsigned, positive bounds",
6192 .insns = {
6193 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
6194 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
6195 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
6196 BPF_LD_MAP_FD(BPF_REG_1, 0),
6197 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
6198 BPF_FUNC_map_lookup_elem),
6199 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
6200 BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
6201 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
6202 BPF_MOV64_IMM(BPF_REG_2, 2),
6203 BPF_JMP_REG(BPF_JGE, BPF_REG_2, BPF_REG_1, 3),
6204 BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 4, 2),
6205 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
6206 BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
6207 BPF_MOV64_IMM(BPF_REG_0, 0),
6208 BPF_EXIT_INSN(),
6209 },
6210 .fixup_map1 = { 3 },
6211 .errstr = "R0 min value is negative",
6212 .result = REJECT,
6213 },
6214 {
6215 "bounds checks mixing signed and unsigned",
6216 .insns = {
6217 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
6218 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
6219 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
6220 BPF_LD_MAP_FD(BPF_REG_1, 0),
6221 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
6222 BPF_FUNC_map_lookup_elem),
6223 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
6224 BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
6225 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
6226 BPF_MOV64_IMM(BPF_REG_2, -1),
6227 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_2, 3),
6228 BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2),
6229 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
6230 BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
6231 BPF_MOV64_IMM(BPF_REG_0, 0),
6232 BPF_EXIT_INSN(),
6233 },
6234 .fixup_map1 = { 3 },
6235 .errstr = "R0 min value is negative",
6236 .result = REJECT,
6237 },
6238 {
6239 "bounds checks mixing signed and unsigned, variant 2",
6240 .insns = {
6241 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
6242 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
6243 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
6244 BPF_LD_MAP_FD(BPF_REG_1, 0),
6245 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
6246 BPF_FUNC_map_lookup_elem),
6247 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9),
6248 BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
6249 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
6250 BPF_MOV64_IMM(BPF_REG_2, -1),
6251 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_2, 5),
6252 BPF_MOV64_IMM(BPF_REG_8, 0),
6253 BPF_ALU64_REG(BPF_ADD, BPF_REG_8, BPF_REG_1),
6254 BPF_JMP_IMM(BPF_JSGT, BPF_REG_8, 1, 2),
6255 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_8),
6256 BPF_ST_MEM(BPF_B, BPF_REG_8, 0, 0),
6257 BPF_MOV64_IMM(BPF_REG_0, 0),
6258 BPF_EXIT_INSN(),
6259 },
6260 .fixup_map1 = { 3 },
6261 .errstr = "R8 invalid mem access 'inv'",
6262 .result = REJECT,
6263 },
6264 {
6265 "bounds checks mixing signed and unsigned, variant 3",
6266 .insns = {
6267 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
6268 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
6269 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
6270 BPF_LD_MAP_FD(BPF_REG_1, 0),
6271 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
6272 BPF_FUNC_map_lookup_elem),
6273 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 8),
6274 BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
6275 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
6276 BPF_MOV64_IMM(BPF_REG_2, -1),
6277 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_2, 4),
6278 BPF_MOV64_REG(BPF_REG_8, BPF_REG_1),
6279 BPF_JMP_IMM(BPF_JSGT, BPF_REG_8, 1, 2),
6280 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_8),
6281 BPF_ST_MEM(BPF_B, BPF_REG_8, 0, 0),
6282 BPF_MOV64_IMM(BPF_REG_0, 0),
6283 BPF_EXIT_INSN(),
6284 },
6285 .fixup_map1 = { 3 },
6286 .errstr = "R8 invalid mem access 'inv'",
6287 .result = REJECT,
6288 },
6289 {
6290 "bounds checks mixing signed and unsigned, variant 4",
6291 .insns = {
6292 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
6293 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
6294 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
6295 BPF_LD_MAP_FD(BPF_REG_1, 0),
6296 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
6297 BPF_FUNC_map_lookup_elem),
6298 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
6299 BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
6300 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
6301 BPF_MOV64_IMM(BPF_REG_2, 1),
6302 BPF_ALU64_REG(BPF_AND, BPF_REG_1, BPF_REG_2),
6303 BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2),
6304 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
6305 BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
6306 BPF_MOV64_IMM(BPF_REG_0, 0),
6307 BPF_EXIT_INSN(),
6308 },
6309 .fixup_map1 = { 3 },
6310 .result = ACCEPT,
6311 },
6312 {
6313 "bounds checks mixing signed and unsigned, variant 5",
6314 .insns = {
6315 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
6316 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
6317 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
6318 BPF_LD_MAP_FD(BPF_REG_1, 0),
6319 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
6320 BPF_FUNC_map_lookup_elem),
6321 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9),
6322 BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
6323 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
6324 BPF_MOV64_IMM(BPF_REG_2, -1),
6325 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_2, 5),
6326 BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 4),
6327 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 4),
6328 BPF_ALU64_REG(BPF_SUB, BPF_REG_0, BPF_REG_1),
6329 BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
6330 BPF_MOV64_IMM(BPF_REG_0, 0),
6331 BPF_EXIT_INSN(),
6332 },
6333 .fixup_map1 = { 3 },
6334 .errstr = "R0 min value is negative",
6335 .result = REJECT,
6336 },
6337 {
6338 "bounds checks mixing signed and unsigned, variant 6",
6339 .insns = {
6340 BPF_MOV64_IMM(BPF_REG_2, 0),
6341 BPF_MOV64_REG(BPF_REG_3, BPF_REG_10),
6342 BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, -512),
6343 BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
6344 BPF_LDX_MEM(BPF_DW, BPF_REG_4, BPF_REG_10, -16),
6345 BPF_MOV64_IMM(BPF_REG_6, -1),
6346 BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_6, 5),
6347 BPF_JMP_IMM(BPF_JSGT, BPF_REG_4, 1, 4),
6348 BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 1),
6349 BPF_MOV64_IMM(BPF_REG_5, 0),
6350 BPF_ST_MEM(BPF_H, BPF_REG_10, -512, 0),
6351 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
6352 BPF_FUNC_skb_load_bytes),
6353 BPF_MOV64_IMM(BPF_REG_0, 0),
6354 BPF_EXIT_INSN(),
6355 },
6356 .errstr = "R4 min value is negative, either use unsigned",
6357 .result = REJECT,
6358 },
6359 {
6360 "bounds checks mixing signed and unsigned, variant 7",
6361 .insns = {
6362 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
6363 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
6364 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
6365 BPF_LD_MAP_FD(BPF_REG_1, 0),
6366 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
6367 BPF_FUNC_map_lookup_elem),
6368 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
6369 BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
6370 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
6371 BPF_MOV64_IMM(BPF_REG_2, 1024 * 1024 * 1024),
6372 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_2, 3),
6373 BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2),
6374 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
6375 BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
6376 BPF_MOV64_IMM(BPF_REG_0, 0),
6377 BPF_EXIT_INSN(),
6378 },
6379 .fixup_map1 = { 3 },
6380 .result = ACCEPT,
6381 },
6382 {
6383 "bounds checks mixing signed and unsigned, variant 8",
6384 .insns = {
6385 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
6386 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
6387 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
6388 BPF_LD_MAP_FD(BPF_REG_1, 0),
6389 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
6390 BPF_FUNC_map_lookup_elem),
6391 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9),
6392 BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
6393 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
6394 BPF_MOV64_IMM(BPF_REG_2, -1),
6395 BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 2),
6396 BPF_MOV64_IMM(BPF_REG_0, 0),
6397 BPF_EXIT_INSN(),
6398 BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2),
6399 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
6400 BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
6401 BPF_MOV64_IMM(BPF_REG_0, 0),
6402 BPF_EXIT_INSN(),
6403 },
6404 .fixup_map1 = { 3 },
6405 .errstr = "R0 min value is negative",
6406 .result = REJECT,
6407 },
6408 {
6409 "bounds checks mixing signed and unsigned, variant 9",
6410 .insns = {
6411 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
6412 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
6413 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
6414 BPF_LD_MAP_FD(BPF_REG_1, 0),
6415 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
6416 BPF_FUNC_map_lookup_elem),
6417 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 10),
6418 BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
6419 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
6420 BPF_LD_IMM64(BPF_REG_2, -9223372036854775808ULL),
6421 BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 2),
6422 BPF_MOV64_IMM(BPF_REG_0, 0),
6423 BPF_EXIT_INSN(),
6424 BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2),
6425 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
6426 BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
6427 BPF_MOV64_IMM(BPF_REG_0, 0),
6428 BPF_EXIT_INSN(),
6429 },
6430 .fixup_map1 = { 3 },
6431 .result = ACCEPT,
6432 },
6433 {
6434 "bounds checks mixing signed and unsigned, variant 10",
6435 .insns = {
6436 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
6437 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
6438 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
6439 BPF_LD_MAP_FD(BPF_REG_1, 0),
6440 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
6441 BPF_FUNC_map_lookup_elem),
6442 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9),
6443 BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
6444 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
6445 BPF_MOV64_IMM(BPF_REG_2, 0),
6446 BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 2),
6447 BPF_MOV64_IMM(BPF_REG_0, 0),
6448 BPF_EXIT_INSN(),
6449 BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2),
6450 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
6451 BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
6452 BPF_MOV64_IMM(BPF_REG_0, 0),
6453 BPF_EXIT_INSN(),
6454 },
6455 .fixup_map1 = { 3 },
6456 .errstr = "R0 min value is negative",
6457 .result = REJECT,
6458 },
6459 {
6460 "bounds checks mixing signed and unsigned, variant 11",
6461 .insns = {
6462 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
6463 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
6464 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
6465 BPF_LD_MAP_FD(BPF_REG_1, 0),
6466 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
6467 BPF_FUNC_map_lookup_elem),
6468 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9),
6469 BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
6470 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
6471 BPF_MOV64_IMM(BPF_REG_2, -1),
6472 BPF_JMP_REG(BPF_JGE, BPF_REG_2, BPF_REG_1, 2),
6473 /* Dead branch. */
6474 BPF_MOV64_IMM(BPF_REG_0, 0),
6475 BPF_EXIT_INSN(),
6476 BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2),
6477 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
6478 BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
6479 BPF_MOV64_IMM(BPF_REG_0, 0),
6480 BPF_EXIT_INSN(),
6481 },
6482 .fixup_map1 = { 3 },
6483 .errstr = "R0 min value is negative",
6484 .result = REJECT,
6485 },
6486 {
6487 "bounds checks mixing signed and unsigned, variant 12",
6488 .insns = {
6489 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
6490 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
6491 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
6492 BPF_LD_MAP_FD(BPF_REG_1, 0),
6493 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
6494 BPF_FUNC_map_lookup_elem),
6495 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9),
6496 BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
6497 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
6498 BPF_MOV64_IMM(BPF_REG_2, -6),
6499 BPF_JMP_REG(BPF_JGE, BPF_REG_2, BPF_REG_1, 2),
6500 BPF_MOV64_IMM(BPF_REG_0, 0),
6501 BPF_EXIT_INSN(),
6502 BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2),
6503 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
6504 BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
6505 BPF_MOV64_IMM(BPF_REG_0, 0),
6506 BPF_EXIT_INSN(),
6507 },
6508 .fixup_map1 = { 3 },
6509 .errstr = "R0 min value is negative",
6510 .result = REJECT,
6511 },
6512 {
6513 "bounds checks mixing signed and unsigned, variant 13",
6514 .insns = {
6515 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
6516 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
6517 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
6518 BPF_LD_MAP_FD(BPF_REG_1, 0),
6519 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
6520 BPF_FUNC_map_lookup_elem),
6521 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6),
6522 BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
6523 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
6524 BPF_MOV64_IMM(BPF_REG_2, 2),
6525 BPF_JMP_REG(BPF_JGE, BPF_REG_2, BPF_REG_1, 2),
6526 BPF_MOV64_IMM(BPF_REG_7, 1),
6527 BPF_JMP_IMM(BPF_JSGT, BPF_REG_7, 0, 2),
6528 BPF_MOV64_IMM(BPF_REG_0, 0),
6529 BPF_EXIT_INSN(),
6530 BPF_ALU64_REG(BPF_ADD, BPF_REG_7, BPF_REG_1),
6531 BPF_JMP_IMM(BPF_JSGT, BPF_REG_7, 4, 2),
6532 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_7),
6533 BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
6534 BPF_MOV64_IMM(BPF_REG_0, 0),
6535 BPF_EXIT_INSN(),
6536 },
6537 .fixup_map1 = { 3 },
6538 .errstr = "R0 min value is negative",
6539 .result = REJECT,
6540 },
6541 {
6542 "bounds checks mixing signed and unsigned, variant 14",
6543 .insns = {
6544 BPF_LDX_MEM(BPF_W, BPF_REG_9, BPF_REG_1,
6545 offsetof(struct __sk_buff, mark)),
6546 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
6547 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
6548 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
6549 BPF_LD_MAP_FD(BPF_REG_1, 0),
6550 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
6551 BPF_FUNC_map_lookup_elem),
6552 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 8),
6553 BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
6554 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
6555 BPF_MOV64_IMM(BPF_REG_2, -1),
6556 BPF_MOV64_IMM(BPF_REG_8, 2),
6557 BPF_JMP_IMM(BPF_JEQ, BPF_REG_9, 42, 6),
6558 BPF_JMP_REG(BPF_JSGT, BPF_REG_8, BPF_REG_1, 3),
6559 BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2),
6560 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
6561 BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
6562 BPF_MOV64_IMM(BPF_REG_0, 0),
6563 BPF_EXIT_INSN(),
6564 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_2, -3),
6565 BPF_JMP_IMM(BPF_JA, 0, 0, -7),
6566 },
6567 .fixup_map1 = { 4 },
6568 .errstr = "R0 min value is negative",
6569 .result = REJECT,
6570 },
6571 {
6572 "bounds checks mixing signed and unsigned, variant 15",
6573 .insns = {
6574 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
6575 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
6576 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
6577 BPF_LD_MAP_FD(BPF_REG_1, 0),
6578 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
6579 BPF_FUNC_map_lookup_elem),
6580 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
6581 BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
6582 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
6583 BPF_MOV64_IMM(BPF_REG_2, -6),
6584 BPF_JMP_REG(BPF_JGE, BPF_REG_2, BPF_REG_1, 2),
6585 BPF_MOV64_IMM(BPF_REG_0, 0),
6586 BPF_EXIT_INSN(),
6587 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
6588 BPF_JMP_IMM(BPF_JGT, BPF_REG_0, 1, 2),
6589 BPF_MOV64_IMM(BPF_REG_0, 0),
6590 BPF_EXIT_INSN(),
6591 BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
6592 BPF_MOV64_IMM(BPF_REG_0, 0),
6593 BPF_EXIT_INSN(),
6594 },
6595 .fixup_map1 = { 3 },
6596 .errstr_unpriv = "R0 pointer comparison prohibited",
6597 .errstr = "R0 min value is negative",
6598 .result = REJECT,
6599 .result_unpriv = REJECT,
6600 },
6601 {
6602 "subtraction bounds (map value) variant 1",
6603 .insns = {
6604 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
6605 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
6606 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
6607 BPF_LD_MAP_FD(BPF_REG_1, 0),
6608 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
6609 BPF_FUNC_map_lookup_elem),
6610 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9),
6611 BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 0),
6612 BPF_JMP_IMM(BPF_JGT, BPF_REG_1, 0xff, 7),
6613 BPF_LDX_MEM(BPF_B, BPF_REG_3, BPF_REG_0, 1),
6614 BPF_JMP_IMM(BPF_JGT, BPF_REG_3, 0xff, 5),
6615 BPF_ALU64_REG(BPF_SUB, BPF_REG_1, BPF_REG_3),
6616 BPF_ALU64_IMM(BPF_RSH, BPF_REG_1, 56),
6617 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
6618 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0),
6619 BPF_EXIT_INSN(),
6620 BPF_MOV64_IMM(BPF_REG_0, 0),
6621 BPF_EXIT_INSN(),
6622 },
6623 .fixup_map1 = { 3 },
6624 .errstr = "R0 max value is outside of the array range",
6625 .result = REJECT,
6626 },
6627 {
6628 "subtraction bounds (map value) variant 2",
6629 .insns = {
6630 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
6631 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
6632 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
6633 BPF_LD_MAP_FD(BPF_REG_1, 0),
6634 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
6635 BPF_FUNC_map_lookup_elem),
6636 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 8),
6637 BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 0),
6638 BPF_JMP_IMM(BPF_JGT, BPF_REG_1, 0xff, 6),
6639 BPF_LDX_MEM(BPF_B, BPF_REG_3, BPF_REG_0, 1),
6640 BPF_JMP_IMM(BPF_JGT, BPF_REG_3, 0xff, 4),
6641 BPF_ALU64_REG(BPF_SUB, BPF_REG_1, BPF_REG_3),
6642 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
6643 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0),
6644 BPF_EXIT_INSN(),
6645 BPF_MOV64_IMM(BPF_REG_0, 0),
6646 BPF_EXIT_INSN(),
6647 },
6648 .fixup_map1 = { 3 },
6649 .errstr = "R0 min value is negative, either use unsigned index or do a if (index >=0) check.",
6650 .result = REJECT,
6651 },
6652 {
6653 "variable-offset ctx access",
6654 .insns = {
6655 /* Get an unknown value */
6656 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 0),
6657 /* Make it small and 4-byte aligned */
6658 BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 4),
6659 /* add it to skb. We now have either &skb->len or
6660 * &skb->pkt_type, but we don't know which
6661 */
6662 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_2),
6663 /* dereference it */
6664 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, 0),
6665 BPF_EXIT_INSN(),
6666 },
6667 .errstr = "variable ctx access var_off=(0x0; 0x4)",
6668 .result = REJECT,
6669 .prog_type = BPF_PROG_TYPE_LWT_IN,
6670 },
6671 {
6672 "variable-offset stack access",
6673 .insns = {
6674 /* Fill the top 8 bytes of the stack */
6675 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
6676 /* Get an unknown value */
6677 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 0),
6678 /* Make it small and 4-byte aligned */
6679 BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 4),
6680 BPF_ALU64_IMM(BPF_SUB, BPF_REG_2, 8),
6681 /* add it to fp. We now have either fp-4 or fp-8, but
6682 * we don't know which
6683 */
6684 BPF_ALU64_REG(BPF_ADD, BPF_REG_2, BPF_REG_10),
6685 /* dereference it */
6686 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_2, 0),
6687 BPF_EXIT_INSN(),
6688 },
6689 .errstr = "variable stack access var_off=(0xfffffffffffffff8; 0x4)",
6690 .result = REJECT,
6691 .prog_type = BPF_PROG_TYPE_LWT_IN,
6692 },
6693 {
6694 "liveness pruning and write screening",
6695 .insns = {
6696 /* Get an unknown value */
6697 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 0),
6698 /* branch conditions teach us nothing about R2 */
6699 BPF_JMP_IMM(BPF_JGE, BPF_REG_2, 0, 1),
6700 BPF_MOV64_IMM(BPF_REG_0, 0),
6701 BPF_JMP_IMM(BPF_JGE, BPF_REG_2, 0, 1),
6702 BPF_MOV64_IMM(BPF_REG_0, 0),
6703 BPF_EXIT_INSN(),
6704 },
6705 .errstr = "R0 !read_ok",
6706 .result = REJECT,
6707 .prog_type = BPF_PROG_TYPE_LWT_IN,
6708 },
6709 {
6710 "varlen_map_value_access pruning",
6711 .insns = {
6712 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
6713 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
6714 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
6715 BPF_LD_MAP_FD(BPF_REG_1, 0),
6716 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
6717 BPF_FUNC_map_lookup_elem),
6718 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 8),
6719 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0),
6720 BPF_MOV32_IMM(BPF_REG_2, MAX_ENTRIES),
6721 BPF_JMP_REG(BPF_JSGT, BPF_REG_2, BPF_REG_1, 1),
6722 BPF_MOV32_IMM(BPF_REG_1, 0),
6723 BPF_ALU32_IMM(BPF_LSH, BPF_REG_1, 2),
6724 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
6725 BPF_JMP_IMM(BPF_JA, 0, 0, 0),
6726 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0,
6727 offsetof(struct test_val, foo)),
6728 BPF_EXIT_INSN(),
6729 },
6730 .fixup_map2 = { 3 },
6731 .errstr_unpriv = "R0 leaks addr",
6732 .errstr = "R0 unbounded memory access",
6733 .result_unpriv = REJECT,
6734 .result = REJECT,
6735 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
6736 },
6737 {
6738 "invalid 64-bit BPF_END",
6739 .insns = {
6740 BPF_MOV32_IMM(BPF_REG_0, 0),
6741 {
6742 .code = BPF_ALU64 | BPF_END | BPF_TO_LE,
6743 .dst_reg = BPF_REG_0,
6744 .src_reg = 0,
6745 .off = 0,
6746 .imm = 32,
6747 },
6748 BPF_EXIT_INSN(),
6749 },
6750 .errstr = "BPF_END uses reserved fields",
6751 .result = REJECT,
6752 },
6753 {
6754 "meta access, test1",
6755 .insns = {
6756 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
6757 offsetof(struct xdp_md, data_meta)),
6758 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
6759 offsetof(struct xdp_md, data)),
6760 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
6761 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
6762 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
6763 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
6764 BPF_MOV64_IMM(BPF_REG_0, 0),
6765 BPF_EXIT_INSN(),
6766 },
6767 .result = ACCEPT,
6768 .prog_type = BPF_PROG_TYPE_XDP,
6769 },
6770 {
6771 "meta access, test2",
6772 .insns = {
6773 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
6774 offsetof(struct xdp_md, data_meta)),
6775 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
6776 offsetof(struct xdp_md, data)),
6777 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
6778 BPF_ALU64_IMM(BPF_SUB, BPF_REG_0, 8),
6779 BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
6780 BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 8),
6781 BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 1),
6782 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0),
6783 BPF_MOV64_IMM(BPF_REG_0, 0),
6784 BPF_EXIT_INSN(),
6785 },
6786 .result = REJECT,
6787 .errstr = "invalid access to packet, off=-8",
6788 .prog_type = BPF_PROG_TYPE_XDP,
6789 },
6790 {
6791 "meta access, test3",
6792 .insns = {
6793 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
6794 offsetof(struct xdp_md, data_meta)),
6795 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
6796 offsetof(struct xdp_md, data_end)),
6797 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
6798 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
6799 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
6800 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
6801 BPF_MOV64_IMM(BPF_REG_0, 0),
6802 BPF_EXIT_INSN(),
6803 },
6804 .result = REJECT,
6805 .errstr = "invalid access to packet",
6806 .prog_type = BPF_PROG_TYPE_XDP,
6807 },
6808 {
6809 "meta access, test4",
6810 .insns = {
6811 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
6812 offsetof(struct xdp_md, data_meta)),
6813 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
6814 offsetof(struct xdp_md, data_end)),
6815 BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_1,
6816 offsetof(struct xdp_md, data)),
6817 BPF_MOV64_REG(BPF_REG_0, BPF_REG_4),
6818 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
6819 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
6820 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
6821 BPF_MOV64_IMM(BPF_REG_0, 0),
6822 BPF_EXIT_INSN(),
6823 },
6824 .result = REJECT,
6825 .errstr = "invalid access to packet",
6826 .prog_type = BPF_PROG_TYPE_XDP,
6827 },
6828 {
6829 "meta access, test5",
6830 .insns = {
6831 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
6832 offsetof(struct xdp_md, data_meta)),
6833 BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_1,
6834 offsetof(struct xdp_md, data)),
6835 BPF_MOV64_REG(BPF_REG_0, BPF_REG_3),
6836 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
6837 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_4, 3),
6838 BPF_MOV64_IMM(BPF_REG_2, -8),
6839 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
6840 BPF_FUNC_xdp_adjust_meta),
6841 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_3, 0),
6842 BPF_MOV64_IMM(BPF_REG_0, 0),
6843 BPF_EXIT_INSN(),
6844 },
6845 .result = REJECT,
6846 .errstr = "R3 !read_ok",
6847 .prog_type = BPF_PROG_TYPE_XDP,
6848 },
6849 {
6850 "meta access, test6",
6851 .insns = {
6852 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
6853 offsetof(struct xdp_md, data_meta)),
6854 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
6855 offsetof(struct xdp_md, data)),
6856 BPF_MOV64_REG(BPF_REG_0, BPF_REG_3),
6857 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
6858 BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
6859 BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 8),
6860 BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_0, 1),
6861 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
6862 BPF_MOV64_IMM(BPF_REG_0, 0),
6863 BPF_EXIT_INSN(),
6864 },
6865 .result = REJECT,
6866 .errstr = "invalid access to packet",
6867 .prog_type = BPF_PROG_TYPE_XDP,
6868 },
6869 {
6870 "meta access, test7",
6871 .insns = {
6872 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
6873 offsetof(struct xdp_md, data_meta)),
6874 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
6875 offsetof(struct xdp_md, data)),
6876 BPF_MOV64_REG(BPF_REG_0, BPF_REG_3),
6877 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
6878 BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
6879 BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 8),
6880 BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 1),
6881 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
6882 BPF_MOV64_IMM(BPF_REG_0, 0),
6883 BPF_EXIT_INSN(),
6884 },
6885 .result = ACCEPT,
6886 .prog_type = BPF_PROG_TYPE_XDP,
6887 },
6888 {
6889 "meta access, test8",
6890 .insns = {
6891 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
6892 offsetof(struct xdp_md, data_meta)),
6893 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
6894 offsetof(struct xdp_md, data)),
6895 BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
6896 BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 0xFFFF),
6897 BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 1),
6898 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
6899 BPF_MOV64_IMM(BPF_REG_0, 0),
6900 BPF_EXIT_INSN(),
6901 },
6902 .result = ACCEPT,
6903 .prog_type = BPF_PROG_TYPE_XDP,
6904 },
6905 {
6906 "meta access, test9",
6907 .insns = {
6908 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
6909 offsetof(struct xdp_md, data_meta)),
6910 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
6911 offsetof(struct xdp_md, data)),
6912 BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
6913 BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 0xFFFF),
6914 BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 1),
6915 BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 1),
6916 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
6917 BPF_MOV64_IMM(BPF_REG_0, 0),
6918 BPF_EXIT_INSN(),
6919 },
6920 .result = REJECT,
6921 .errstr = "invalid access to packet",
6922 .prog_type = BPF_PROG_TYPE_XDP,
6923 },
6924 {
6925 "meta access, test10",
6926 .insns = {
6927 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
6928 offsetof(struct xdp_md, data_meta)),
6929 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
6930 offsetof(struct xdp_md, data)),
6931 BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_1,
6932 offsetof(struct xdp_md, data_end)),
6933 BPF_MOV64_IMM(BPF_REG_5, 42),
6934 BPF_MOV64_IMM(BPF_REG_6, 24),
6935 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_5, -8),
6936 BPF_STX_XADD(BPF_DW, BPF_REG_10, BPF_REG_6, -8),
6937 BPF_LDX_MEM(BPF_DW, BPF_REG_5, BPF_REG_10, -8),
6938 BPF_JMP_IMM(BPF_JGT, BPF_REG_5, 100, 6),
6939 BPF_ALU64_REG(BPF_ADD, BPF_REG_3, BPF_REG_5),
6940 BPF_MOV64_REG(BPF_REG_5, BPF_REG_3),
6941 BPF_MOV64_REG(BPF_REG_6, BPF_REG_2),
6942 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 8),
6943 BPF_JMP_REG(BPF_JGT, BPF_REG_6, BPF_REG_5, 1),
6944 BPF_LDX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0),
6945 BPF_MOV64_IMM(BPF_REG_0, 0),
6946 BPF_EXIT_INSN(),
6947 },
6948 .result = REJECT,
6949 .errstr = "invalid access to packet",
6950 .prog_type = BPF_PROG_TYPE_XDP,
6951 },
6952 {
6953 "meta access, test11",
6954 .insns = {
6955 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
6956 offsetof(struct xdp_md, data_meta)),
6957 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
6958 offsetof(struct xdp_md, data)),
6959 BPF_MOV64_IMM(BPF_REG_5, 42),
6960 BPF_MOV64_IMM(BPF_REG_6, 24),
6961 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_5, -8),
6962 BPF_STX_XADD(BPF_DW, BPF_REG_10, BPF_REG_6, -8),
6963 BPF_LDX_MEM(BPF_DW, BPF_REG_5, BPF_REG_10, -8),
6964 BPF_JMP_IMM(BPF_JGT, BPF_REG_5, 100, 6),
6965 BPF_ALU64_REG(BPF_ADD, BPF_REG_2, BPF_REG_5),
6966 BPF_MOV64_REG(BPF_REG_5, BPF_REG_2),
6967 BPF_MOV64_REG(BPF_REG_6, BPF_REG_2),
6968 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 8),
6969 BPF_JMP_REG(BPF_JGT, BPF_REG_6, BPF_REG_3, 1),
6970 BPF_LDX_MEM(BPF_B, BPF_REG_5, BPF_REG_5, 0),
6971 BPF_MOV64_IMM(BPF_REG_0, 0),
6972 BPF_EXIT_INSN(),
6973 },
6974 .result = ACCEPT,
6975 .prog_type = BPF_PROG_TYPE_XDP,
6976 },
6977 {
6978 "meta access, test12",
6979 .insns = {
6980 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
6981 offsetof(struct xdp_md, data_meta)),
6982 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
6983 offsetof(struct xdp_md, data)),
6984 BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_1,
6985 offsetof(struct xdp_md, data_end)),
6986 BPF_MOV64_REG(BPF_REG_5, BPF_REG_3),
6987 BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 16),
6988 BPF_JMP_REG(BPF_JGT, BPF_REG_5, BPF_REG_4, 5),
6989 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_3, 0),
6990 BPF_MOV64_REG(BPF_REG_5, BPF_REG_2),
6991 BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 16),
6992 BPF_JMP_REG(BPF_JGT, BPF_REG_5, BPF_REG_3, 1),
6993 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
6994 BPF_MOV64_IMM(BPF_REG_0, 0),
6995 BPF_EXIT_INSN(),
6996 },
6997 .result = ACCEPT,
6998 .prog_type = BPF_PROG_TYPE_XDP,
6999 },
7000 {
7001 "arithmetic ops make PTR_TO_CTX unusable",
7002 .insns = {
7003 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1,
7004 offsetof(struct __sk_buff, data) -
7005 offsetof(struct __sk_buff, mark)),
7006 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
7007 offsetof(struct __sk_buff, mark)),
7008 BPF_EXIT_INSN(),
7009 },
7010 .errstr = "dereference of modified ctx ptr R1 off=68+8, ctx+const is allowed, ctx+const+const is not",
7011 .result = REJECT,
7012 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
7013 },
7014 {
7015 "XDP pkt read, pkt_end mangling, bad access 1",
7016 .insns = {
7017 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
7018 offsetof(struct xdp_md, data)),
7019 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
7020 offsetof(struct xdp_md, data_end)),
7021 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
7022 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
7023 BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, 8),
7024 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 1),
7025 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
7026 BPF_MOV64_IMM(BPF_REG_0, 0),
7027 BPF_EXIT_INSN(),
7028 },
7029 .errstr = "R1 offset is outside of the packet",
7030 .result = REJECT,
7031 .prog_type = BPF_PROG_TYPE_XDP,
7032 },
7033 {
7034 "XDP pkt read, pkt_end mangling, bad access 2",
7035 .insns = {
7036 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
7037 offsetof(struct xdp_md, data)),
7038 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
7039 offsetof(struct xdp_md, data_end)),
7040 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
7041 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
7042 BPF_ALU64_IMM(BPF_SUB, BPF_REG_3, 8),
7043 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 1),
7044 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
7045 BPF_MOV64_IMM(BPF_REG_0, 0),
7046 BPF_EXIT_INSN(),
7047 },
7048 .errstr = "R1 offset is outside of the packet",
7049 .result = REJECT,
7050 .prog_type = BPF_PROG_TYPE_XDP,
7051 },
7052 {
7053 "XDP pkt read, pkt_data' > pkt_end, good access",
7054 .insns = {
7055 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
7056 offsetof(struct xdp_md, data)),
7057 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
7058 offsetof(struct xdp_md, data_end)),
7059 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
7060 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
7061 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 1),
7062 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
7063 BPF_MOV64_IMM(BPF_REG_0, 0),
7064 BPF_EXIT_INSN(),
7065 },
7066 .result = ACCEPT,
7067 .prog_type = BPF_PROG_TYPE_XDP,
7068 },
7069 {
7070 "XDP pkt read, pkt_data' > pkt_end, bad access 1",
7071 .insns = {
7072 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
7073 offsetof(struct xdp_md, data)),
7074 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
7075 offsetof(struct xdp_md, data_end)),
7076 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
7077 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
7078 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 1),
7079 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -4),
7080 BPF_MOV64_IMM(BPF_REG_0, 0),
7081 BPF_EXIT_INSN(),
7082 },
7083 .errstr = "R1 offset is outside of the packet",
7084 .result = REJECT,
7085 .prog_type = BPF_PROG_TYPE_XDP,
7086 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
7087 },
7088 {
7089 "XDP pkt read, pkt_data' > pkt_end, bad access 2",
7090 .insns = {
7091 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
7092 offsetof(struct xdp_md, data)),
7093 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
7094 offsetof(struct xdp_md, data_end)),
7095 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
7096 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
7097 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 0),
7098 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
7099 BPF_MOV64_IMM(BPF_REG_0, 0),
7100 BPF_EXIT_INSN(),
7101 },
7102 .errstr = "R1 offset is outside of the packet",
7103 .result = REJECT,
7104 .prog_type = BPF_PROG_TYPE_XDP,
7105 },
7106 {
7107 "XDP pkt read, pkt_end > pkt_data', good access",
7108 .insns = {
7109 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
7110 offsetof(struct xdp_md, data)),
7111 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
7112 offsetof(struct xdp_md, data_end)),
7113 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
7114 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
7115 BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_1, 1),
7116 BPF_JMP_IMM(BPF_JA, 0, 0, 1),
7117 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -5),
7118 BPF_MOV64_IMM(BPF_REG_0, 0),
7119 BPF_EXIT_INSN(),
7120 },
7121 .result = ACCEPT,
7122 .prog_type = BPF_PROG_TYPE_XDP,
7123 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
7124 },
7125 {
7126 "XDP pkt read, pkt_end > pkt_data', bad access 1",
7127 .insns = {
7128 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
7129 offsetof(struct xdp_md, data)),
7130 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
7131 offsetof(struct xdp_md, data_end)),
7132 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
7133 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
7134 BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_1, 1),
7135 BPF_JMP_IMM(BPF_JA, 0, 0, 1),
7136 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
7137 BPF_MOV64_IMM(BPF_REG_0, 0),
7138 BPF_EXIT_INSN(),
7139 },
7140 .errstr = "R1 offset is outside of the packet",
7141 .result = REJECT,
7142 .prog_type = BPF_PROG_TYPE_XDP,
7143 },
7144 {
7145 "XDP pkt read, pkt_end > pkt_data', bad access 2",
7146 .insns = {
7147 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
7148 offsetof(struct xdp_md, data)),
7149 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
7150 offsetof(struct xdp_md, data_end)),
7151 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
7152 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
7153 BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_1, 1),
7154 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
7155 BPF_MOV64_IMM(BPF_REG_0, 0),
7156 BPF_EXIT_INSN(),
7157 },
7158 .errstr = "R1 offset is outside of the packet",
7159 .result = REJECT,
7160 .prog_type = BPF_PROG_TYPE_XDP,
7161 },
7162 {
7163 "XDP pkt read, pkt_data' < pkt_end, good access",
7164 .insns = {
7165 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
7166 offsetof(struct xdp_md, data)),
7167 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
7168 offsetof(struct xdp_md, data_end)),
7169 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
7170 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
7171 BPF_JMP_REG(BPF_JLT, BPF_REG_1, BPF_REG_3, 1),
7172 BPF_JMP_IMM(BPF_JA, 0, 0, 1),
7173 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -5),
7174 BPF_MOV64_IMM(BPF_REG_0, 0),
7175 BPF_EXIT_INSN(),
7176 },
7177 .result = ACCEPT,
7178 .prog_type = BPF_PROG_TYPE_XDP,
7179 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
7180 },
7181 {
7182 "XDP pkt read, pkt_data' < pkt_end, bad access 1",
7183 .insns = {
7184 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
7185 offsetof(struct xdp_md, data)),
7186 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
7187 offsetof(struct xdp_md, data_end)),
7188 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
7189 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
7190 BPF_JMP_REG(BPF_JLT, BPF_REG_1, BPF_REG_3, 1),
7191 BPF_JMP_IMM(BPF_JA, 0, 0, 1),
7192 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
7193 BPF_MOV64_IMM(BPF_REG_0, 0),
7194 BPF_EXIT_INSN(),
7195 },
7196 .errstr = "R1 offset is outside of the packet",
7197 .result = REJECT,
7198 .prog_type = BPF_PROG_TYPE_XDP,
7199 },
7200 {
7201 "XDP pkt read, pkt_data' < pkt_end, bad access 2",
7202 .insns = {
7203 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
7204 offsetof(struct xdp_md, data)),
7205 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
7206 offsetof(struct xdp_md, data_end)),
7207 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
7208 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
7209 BPF_JMP_REG(BPF_JLT, BPF_REG_1, BPF_REG_3, 1),
7210 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
7211 BPF_MOV64_IMM(BPF_REG_0, 0),
7212 BPF_EXIT_INSN(),
7213 },
7214 .errstr = "R1 offset is outside of the packet",
7215 .result = REJECT,
7216 .prog_type = BPF_PROG_TYPE_XDP,
7217 },
7218 {
7219 "XDP pkt read, pkt_end < pkt_data', good access",
7220 .insns = {
7221 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
7222 offsetof(struct xdp_md, data)),
7223 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
7224 offsetof(struct xdp_md, data_end)),
7225 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
7226 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
7227 BPF_JMP_REG(BPF_JLT, BPF_REG_3, BPF_REG_1, 1),
7228 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
7229 BPF_MOV64_IMM(BPF_REG_0, 0),
7230 BPF_EXIT_INSN(),
7231 },
7232 .result = ACCEPT,
7233 .prog_type = BPF_PROG_TYPE_XDP,
7234 },
7235 {
7236 "XDP pkt read, pkt_end < pkt_data', bad access 1",
7237 .insns = {
7238 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
7239 offsetof(struct xdp_md, data)),
7240 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
7241 offsetof(struct xdp_md, data_end)),
7242 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
7243 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
7244 BPF_JMP_REG(BPF_JLT, BPF_REG_3, BPF_REG_1, 1),
7245 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -4),
7246 BPF_MOV64_IMM(BPF_REG_0, 0),
7247 BPF_EXIT_INSN(),
7248 },
7249 .errstr = "R1 offset is outside of the packet",
7250 .result = REJECT,
7251 .prog_type = BPF_PROG_TYPE_XDP,
7252 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
7253 },
7254 {
7255 "XDP pkt read, pkt_end < pkt_data', bad access 2",
7256 .insns = {
7257 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
7258 offsetof(struct xdp_md, data)),
7259 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
7260 offsetof(struct xdp_md, data_end)),
7261 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
7262 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
7263 BPF_JMP_REG(BPF_JLT, BPF_REG_3, BPF_REG_1, 0),
7264 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
7265 BPF_MOV64_IMM(BPF_REG_0, 0),
7266 BPF_EXIT_INSN(),
7267 },
7268 .errstr = "R1 offset is outside of the packet",
7269 .result = REJECT,
7270 .prog_type = BPF_PROG_TYPE_XDP,
7271 },
7272 {
7273 "XDP pkt read, pkt_data' >= pkt_end, good access",
7274 .insns = {
7275 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
7276 offsetof(struct xdp_md, data)),
7277 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
7278 offsetof(struct xdp_md, data_end)),
7279 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
7280 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
7281 BPF_JMP_REG(BPF_JGE, BPF_REG_1, BPF_REG_3, 1),
7282 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -5),
7283 BPF_MOV64_IMM(BPF_REG_0, 0),
7284 BPF_EXIT_INSN(),
7285 },
7286 .result = ACCEPT,
7287 .prog_type = BPF_PROG_TYPE_XDP,
7288 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
7289 },
7290 {
7291 "XDP pkt read, pkt_data' >= pkt_end, bad access 1",
7292 .insns = {
7293 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
7294 offsetof(struct xdp_md, data)),
7295 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
7296 offsetof(struct xdp_md, data_end)),
7297 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
7298 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
7299 BPF_JMP_REG(BPF_JGE, BPF_REG_1, BPF_REG_3, 1),
7300 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
7301 BPF_MOV64_IMM(BPF_REG_0, 0),
7302 BPF_EXIT_INSN(),
7303 },
7304 .errstr = "R1 offset is outside of the packet",
7305 .result = REJECT,
7306 .prog_type = BPF_PROG_TYPE_XDP,
7307 },
7308 {
7309 "XDP pkt read, pkt_data' >= pkt_end, bad access 2",
7310 .insns = {
7311 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
7312 offsetof(struct xdp_md, data)),
7313 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
7314 offsetof(struct xdp_md, data_end)),
7315 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
7316 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
7317 BPF_JMP_REG(BPF_JGE, BPF_REG_1, BPF_REG_3, 0),
7318 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -5),
7319 BPF_MOV64_IMM(BPF_REG_0, 0),
7320 BPF_EXIT_INSN(),
7321 },
7322 .errstr = "R1 offset is outside of the packet",
7323 .result = REJECT,
7324 .prog_type = BPF_PROG_TYPE_XDP,
7325 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
7326 },
7327 {
7328 "XDP pkt read, pkt_end >= pkt_data', good access",
7329 .insns = {
7330 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
7331 offsetof(struct xdp_md, data)),
7332 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
7333 offsetof(struct xdp_md, data_end)),
7334 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
7335 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
7336 BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_1, 1),
7337 BPF_JMP_IMM(BPF_JA, 0, 0, 1),
7338 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
7339 BPF_MOV64_IMM(BPF_REG_0, 0),
7340 BPF_EXIT_INSN(),
7341 },
7342 .result = ACCEPT,
7343 .prog_type = BPF_PROG_TYPE_XDP,
7344 },
7345 {
7346 "XDP pkt read, pkt_end >= pkt_data', bad access 1",
7347 .insns = {
7348 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
7349 offsetof(struct xdp_md, data)),
7350 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
7351 offsetof(struct xdp_md, data_end)),
7352 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
7353 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
7354 BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_1, 1),
7355 BPF_JMP_IMM(BPF_JA, 0, 0, 1),
7356 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -4),
7357 BPF_MOV64_IMM(BPF_REG_0, 0),
7358 BPF_EXIT_INSN(),
7359 },
7360 .errstr = "R1 offset is outside of the packet",
7361 .result = REJECT,
7362 .prog_type = BPF_PROG_TYPE_XDP,
7363 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
7364 },
7365 {
7366 "XDP pkt read, pkt_end >= pkt_data', bad access 2",
7367 .insns = {
7368 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
7369 offsetof(struct xdp_md, data)),
7370 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
7371 offsetof(struct xdp_md, data_end)),
7372 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
7373 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
7374 BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_1, 1),
7375 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
7376 BPF_MOV64_IMM(BPF_REG_0, 0),
7377 BPF_EXIT_INSN(),
7378 },
7379 .errstr = "R1 offset is outside of the packet",
7380 .result = REJECT,
7381 .prog_type = BPF_PROG_TYPE_XDP,
7382 },
7383 {
7384 "XDP pkt read, pkt_data' <= pkt_end, good access",
7385 .insns = {
7386 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
7387 offsetof(struct xdp_md, data)),
7388 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
7389 offsetof(struct xdp_md, data_end)),
7390 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
7391 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
7392 BPF_JMP_REG(BPF_JLE, BPF_REG_1, BPF_REG_3, 1),
7393 BPF_JMP_IMM(BPF_JA, 0, 0, 1),
7394 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
7395 BPF_MOV64_IMM(BPF_REG_0, 0),
7396 BPF_EXIT_INSN(),
7397 },
7398 .result = ACCEPT,
7399 .prog_type = BPF_PROG_TYPE_XDP,
7400 },
7401 {
7402 "XDP pkt read, pkt_data' <= pkt_end, bad access 1",
7403 .insns = {
7404 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
7405 offsetof(struct xdp_md, data)),
7406 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
7407 offsetof(struct xdp_md, data_end)),
7408 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
7409 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
7410 BPF_JMP_REG(BPF_JLE, BPF_REG_1, BPF_REG_3, 1),
7411 BPF_JMP_IMM(BPF_JA, 0, 0, 1),
7412 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -4),
7413 BPF_MOV64_IMM(BPF_REG_0, 0),
7414 BPF_EXIT_INSN(),
7415 },
7416 .errstr = "R1 offset is outside of the packet",
7417 .result = REJECT,
7418 .prog_type = BPF_PROG_TYPE_XDP,
7419 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
7420 },
7421 {
7422 "XDP pkt read, pkt_data' <= pkt_end, bad access 2",
7423 .insns = {
7424 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
7425 offsetof(struct xdp_md, data)),
7426 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
7427 offsetof(struct xdp_md, data_end)),
7428 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
7429 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
7430 BPF_JMP_REG(BPF_JLE, BPF_REG_1, BPF_REG_3, 1),
7431 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
7432 BPF_MOV64_IMM(BPF_REG_0, 0),
7433 BPF_EXIT_INSN(),
7434 },
7435 .errstr = "R1 offset is outside of the packet",
7436 .result = REJECT,
7437 .prog_type = BPF_PROG_TYPE_XDP,
7438 },
7439 {
7440 "XDP pkt read, pkt_end <= pkt_data', good access",
7441 .insns = {
7442 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
7443 offsetof(struct xdp_md, data)),
7444 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
7445 offsetof(struct xdp_md, data_end)),
7446 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
7447 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
7448 BPF_JMP_REG(BPF_JLE, BPF_REG_3, BPF_REG_1, 1),
7449 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -5),
7450 BPF_MOV64_IMM(BPF_REG_0, 0),
7451 BPF_EXIT_INSN(),
7452 },
7453 .result = ACCEPT,
7454 .prog_type = BPF_PROG_TYPE_XDP,
7455 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
7456 },
7457 {
7458 "XDP pkt read, pkt_end <= pkt_data', bad access 1",
7459 .insns = {
7460 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
7461 offsetof(struct xdp_md, data)),
7462 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
7463 offsetof(struct xdp_md, data_end)),
7464 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
7465 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
7466 BPF_JMP_REG(BPF_JLE, BPF_REG_3, BPF_REG_1, 1),
7467 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
7468 BPF_MOV64_IMM(BPF_REG_0, 0),
7469 BPF_EXIT_INSN(),
7470 },
7471 .errstr = "R1 offset is outside of the packet",
7472 .result = REJECT,
7473 .prog_type = BPF_PROG_TYPE_XDP,
7474 },
7475 {
7476 "XDP pkt read, pkt_end <= pkt_data', bad access 2",
7477 .insns = {
7478 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
7479 offsetof(struct xdp_md, data)),
7480 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
7481 offsetof(struct xdp_md, data_end)),
7482 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
7483 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
7484 BPF_JMP_REG(BPF_JLE, BPF_REG_3, BPF_REG_1, 0),
7485 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -5),
7486 BPF_MOV64_IMM(BPF_REG_0, 0),
7487 BPF_EXIT_INSN(),
7488 },
7489 .errstr = "R1 offset is outside of the packet",
7490 .result = REJECT,
7491 .prog_type = BPF_PROG_TYPE_XDP,
7492 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
7493 },
7494 {
7495 "XDP pkt read, pkt_meta' > pkt_data, good access",
7496 .insns = {
7497 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
7498 offsetof(struct xdp_md, data_meta)),
7499 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
7500 offsetof(struct xdp_md, data)),
7501 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
7502 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
7503 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 1),
7504 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
7505 BPF_MOV64_IMM(BPF_REG_0, 0),
7506 BPF_EXIT_INSN(),
7507 },
7508 .result = ACCEPT,
7509 .prog_type = BPF_PROG_TYPE_XDP,
7510 },
7511 {
7512 "XDP pkt read, pkt_meta' > pkt_data, bad access 1",
7513 .insns = {
7514 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
7515 offsetof(struct xdp_md, data_meta)),
7516 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
7517 offsetof(struct xdp_md, data)),
7518 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
7519 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
7520 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 1),
7521 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -4),
7522 BPF_MOV64_IMM(BPF_REG_0, 0),
7523 BPF_EXIT_INSN(),
7524 },
7525 .errstr = "R1 offset is outside of the packet",
7526 .result = REJECT,
7527 .prog_type = BPF_PROG_TYPE_XDP,
7528 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
7529 },
7530 {
7531 "XDP pkt read, pkt_meta' > pkt_data, bad access 2",
7532 .insns = {
7533 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
7534 offsetof(struct xdp_md, data_meta)),
7535 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
7536 offsetof(struct xdp_md, data)),
7537 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
7538 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
7539 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 0),
7540 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
7541 BPF_MOV64_IMM(BPF_REG_0, 0),
7542 BPF_EXIT_INSN(),
7543 },
7544 .errstr = "R1 offset is outside of the packet",
7545 .result = REJECT,
7546 .prog_type = BPF_PROG_TYPE_XDP,
7547 },
7548 {
7549 "XDP pkt read, pkt_data > pkt_meta', good access",
7550 .insns = {
7551 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
7552 offsetof(struct xdp_md, data_meta)),
7553 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
7554 offsetof(struct xdp_md, data)),
7555 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
7556 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
7557 BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_1, 1),
7558 BPF_JMP_IMM(BPF_JA, 0, 0, 1),
7559 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -5),
7560 BPF_MOV64_IMM(BPF_REG_0, 0),
7561 BPF_EXIT_INSN(),
7562 },
7563 .result = ACCEPT,
7564 .prog_type = BPF_PROG_TYPE_XDP,
7565 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
7566 },
7567 {
7568 "XDP pkt read, pkt_data > pkt_meta', bad access 1",
7569 .insns = {
7570 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
7571 offsetof(struct xdp_md, data_meta)),
7572 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
7573 offsetof(struct xdp_md, data)),
7574 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
7575 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
7576 BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_1, 1),
7577 BPF_JMP_IMM(BPF_JA, 0, 0, 1),
7578 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
7579 BPF_MOV64_IMM(BPF_REG_0, 0),
7580 BPF_EXIT_INSN(),
7581 },
7582 .errstr = "R1 offset is outside of the packet",
7583 .result = REJECT,
7584 .prog_type = BPF_PROG_TYPE_XDP,
7585 },
7586 {
7587 "XDP pkt read, pkt_data > pkt_meta', bad access 2",
7588 .insns = {
7589 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
7590 offsetof(struct xdp_md, data_meta)),
7591 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
7592 offsetof(struct xdp_md, data)),
7593 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
7594 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
7595 BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_1, 1),
7596 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
7597 BPF_MOV64_IMM(BPF_REG_0, 0),
7598 BPF_EXIT_INSN(),
7599 },
7600 .errstr = "R1 offset is outside of the packet",
7601 .result = REJECT,
7602 .prog_type = BPF_PROG_TYPE_XDP,
7603 },
7604 {
7605 "XDP pkt read, pkt_meta' < pkt_data, good access",
7606 .insns = {
7607 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
7608 offsetof(struct xdp_md, data_meta)),
7609 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
7610 offsetof(struct xdp_md, data)),
7611 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
7612 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
7613 BPF_JMP_REG(BPF_JLT, BPF_REG_1, BPF_REG_3, 1),
7614 BPF_JMP_IMM(BPF_JA, 0, 0, 1),
7615 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -5),
7616 BPF_MOV64_IMM(BPF_REG_0, 0),
7617 BPF_EXIT_INSN(),
7618 },
7619 .result = ACCEPT,
7620 .prog_type = BPF_PROG_TYPE_XDP,
7621 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
7622 },
7623 {
7624 "XDP pkt read, pkt_meta' < pkt_data, bad access 1",
7625 .insns = {
7626 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
7627 offsetof(struct xdp_md, data_meta)),
7628 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
7629 offsetof(struct xdp_md, data)),
7630 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
7631 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
7632 BPF_JMP_REG(BPF_JLT, BPF_REG_1, BPF_REG_3, 1),
7633 BPF_JMP_IMM(BPF_JA, 0, 0, 1),
7634 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
7635 BPF_MOV64_IMM(BPF_REG_0, 0),
7636 BPF_EXIT_INSN(),
7637 },
7638 .errstr = "R1 offset is outside of the packet",
7639 .result = REJECT,
7640 .prog_type = BPF_PROG_TYPE_XDP,
7641 },
7642 {
7643 "XDP pkt read, pkt_meta' < pkt_data, bad access 2",
7644 .insns = {
7645 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
7646 offsetof(struct xdp_md, data_meta)),
7647 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
7648 offsetof(struct xdp_md, data)),
7649 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
7650 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
7651 BPF_JMP_REG(BPF_JLT, BPF_REG_1, BPF_REG_3, 1),
7652 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
7653 BPF_MOV64_IMM(BPF_REG_0, 0),
7654 BPF_EXIT_INSN(),
7655 },
7656 .errstr = "R1 offset is outside of the packet",
7657 .result = REJECT,
7658 .prog_type = BPF_PROG_TYPE_XDP,
7659 },
7660 {
7661 "XDP pkt read, pkt_data < pkt_meta', good access",
7662 .insns = {
7663 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
7664 offsetof(struct xdp_md, data_meta)),
7665 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
7666 offsetof(struct xdp_md, data)),
7667 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
7668 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
7669 BPF_JMP_REG(BPF_JLT, BPF_REG_3, BPF_REG_1, 1),
7670 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
7671 BPF_MOV64_IMM(BPF_REG_0, 0),
7672 BPF_EXIT_INSN(),
7673 },
7674 .result = ACCEPT,
7675 .prog_type = BPF_PROG_TYPE_XDP,
7676 },
7677 {
7678 "XDP pkt read, pkt_data < pkt_meta', bad access 1",
7679 .insns = {
7680 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
7681 offsetof(struct xdp_md, data_meta)),
7682 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
7683 offsetof(struct xdp_md, data)),
7684 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
7685 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
7686 BPF_JMP_REG(BPF_JLT, BPF_REG_3, BPF_REG_1, 1),
7687 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -4),
7688 BPF_MOV64_IMM(BPF_REG_0, 0),
7689 BPF_EXIT_INSN(),
7690 },
7691 .errstr = "R1 offset is outside of the packet",
7692 .result = REJECT,
7693 .prog_type = BPF_PROG_TYPE_XDP,
7694 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
7695 },
7696 {
7697 "XDP pkt read, pkt_data < pkt_meta', bad access 2",
7698 .insns = {
7699 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
7700 offsetof(struct xdp_md, data_meta)),
7701 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
7702 offsetof(struct xdp_md, data)),
7703 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
7704 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
7705 BPF_JMP_REG(BPF_JLT, BPF_REG_3, BPF_REG_1, 0),
7706 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
7707 BPF_MOV64_IMM(BPF_REG_0, 0),
7708 BPF_EXIT_INSN(),
7709 },
7710 .errstr = "R1 offset is outside of the packet",
7711 .result = REJECT,
7712 .prog_type = BPF_PROG_TYPE_XDP,
7713 },
7714 {
7715 "XDP pkt read, pkt_meta' >= pkt_data, good access",
7716 .insns = {
7717 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
7718 offsetof(struct xdp_md, data_meta)),
7719 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
7720 offsetof(struct xdp_md, data)),
7721 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
7722 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
7723 BPF_JMP_REG(BPF_JGE, BPF_REG_1, BPF_REG_3, 1),
7724 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -5),
7725 BPF_MOV64_IMM(BPF_REG_0, 0),
7726 BPF_EXIT_INSN(),
7727 },
7728 .result = ACCEPT,
7729 .prog_type = BPF_PROG_TYPE_XDP,
7730 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
7731 },
7732 {
7733 "XDP pkt read, pkt_meta' >= pkt_data, bad access 1",
7734 .insns = {
7735 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
7736 offsetof(struct xdp_md, data_meta)),
7737 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
7738 offsetof(struct xdp_md, data)),
7739 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
7740 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
7741 BPF_JMP_REG(BPF_JGE, BPF_REG_1, BPF_REG_3, 1),
7742 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
7743 BPF_MOV64_IMM(BPF_REG_0, 0),
7744 BPF_EXIT_INSN(),
7745 },
7746 .errstr = "R1 offset is outside of the packet",
7747 .result = REJECT,
7748 .prog_type = BPF_PROG_TYPE_XDP,
7749 },
7750 {
7751 "XDP pkt read, pkt_meta' >= pkt_data, bad access 2",
7752 .insns = {
7753 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
7754 offsetof(struct xdp_md, data_meta)),
7755 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
7756 offsetof(struct xdp_md, data)),
7757 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
7758 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
7759 BPF_JMP_REG(BPF_JGE, BPF_REG_1, BPF_REG_3, 0),
7760 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -5),
7761 BPF_MOV64_IMM(BPF_REG_0, 0),
7762 BPF_EXIT_INSN(),
7763 },
7764 .errstr = "R1 offset is outside of the packet",
7765 .result = REJECT,
7766 .prog_type = BPF_PROG_TYPE_XDP,
7767 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
7768 },
7769 {
7770 "XDP pkt read, pkt_data >= pkt_meta', good access",
7771 .insns = {
7772 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
7773 offsetof(struct xdp_md, data_meta)),
7774 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
7775 offsetof(struct xdp_md, data)),
7776 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
7777 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
7778 BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_1, 1),
7779 BPF_JMP_IMM(BPF_JA, 0, 0, 1),
7780 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
7781 BPF_MOV64_IMM(BPF_REG_0, 0),
7782 BPF_EXIT_INSN(),
7783 },
7784 .result = ACCEPT,
7785 .prog_type = BPF_PROG_TYPE_XDP,
7786 },
7787 {
7788 "XDP pkt read, pkt_data >= pkt_meta', bad access 1",
7789 .insns = {
7790 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
7791 offsetof(struct xdp_md, data_meta)),
7792 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
7793 offsetof(struct xdp_md, data)),
7794 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
7795 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
7796 BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_1, 1),
7797 BPF_JMP_IMM(BPF_JA, 0, 0, 1),
7798 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -4),
7799 BPF_MOV64_IMM(BPF_REG_0, 0),
7800 BPF_EXIT_INSN(),
7801 },
7802 .errstr = "R1 offset is outside of the packet",
7803 .result = REJECT,
7804 .prog_type = BPF_PROG_TYPE_XDP,
7805 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
7806 },
7807 {
7808 "XDP pkt read, pkt_data >= pkt_meta', bad access 2",
7809 .insns = {
7810 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
7811 offsetof(struct xdp_md, data_meta)),
7812 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
7813 offsetof(struct xdp_md, data)),
7814 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
7815 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
7816 BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_1, 1),
7817 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
7818 BPF_MOV64_IMM(BPF_REG_0, 0),
7819 BPF_EXIT_INSN(),
7820 },
7821 .errstr = "R1 offset is outside of the packet",
7822 .result = REJECT,
7823 .prog_type = BPF_PROG_TYPE_XDP,
7824 },
7825 {
7826 "XDP pkt read, pkt_meta' <= pkt_data, good access",
7827 .insns = {
7828 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
7829 offsetof(struct xdp_md, data_meta)),
7830 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
7831 offsetof(struct xdp_md, data)),
7832 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
7833 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
7834 BPF_JMP_REG(BPF_JLE, BPF_REG_1, BPF_REG_3, 1),
7835 BPF_JMP_IMM(BPF_JA, 0, 0, 1),
7836 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
7837 BPF_MOV64_IMM(BPF_REG_0, 0),
7838 BPF_EXIT_INSN(),
7839 },
7840 .result = ACCEPT,
7841 .prog_type = BPF_PROG_TYPE_XDP,
7842 },
7843 {
7844 "XDP pkt read, pkt_meta' <= pkt_data, bad access 1",
7845 .insns = {
7846 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
7847 offsetof(struct xdp_md, data_meta)),
7848 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
7849 offsetof(struct xdp_md, data)),
7850 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
7851 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
7852 BPF_JMP_REG(BPF_JLE, BPF_REG_1, BPF_REG_3, 1),
7853 BPF_JMP_IMM(BPF_JA, 0, 0, 1),
7854 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -4),
7855 BPF_MOV64_IMM(BPF_REG_0, 0),
7856 BPF_EXIT_INSN(),
7857 },
7858 .errstr = "R1 offset is outside of the packet",
7859 .result = REJECT,
7860 .prog_type = BPF_PROG_TYPE_XDP,
7861 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
7862 },
7863 {
7864 "XDP pkt read, pkt_meta' <= pkt_data, bad access 2",
7865 .insns = {
7866 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
7867 offsetof(struct xdp_md, data_meta)),
7868 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
7869 offsetof(struct xdp_md, data)),
7870 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
7871 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
7872 BPF_JMP_REG(BPF_JLE, BPF_REG_1, BPF_REG_3, 1),
7873 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
7874 BPF_MOV64_IMM(BPF_REG_0, 0),
7875 BPF_EXIT_INSN(),
7876 },
7877 .errstr = "R1 offset is outside of the packet",
7878 .result = REJECT,
7879 .prog_type = BPF_PROG_TYPE_XDP,
7880 },
7881 {
7882 "XDP pkt read, pkt_data <= pkt_meta', good access",
7883 .insns = {
7884 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
7885 offsetof(struct xdp_md, data_meta)),
7886 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
7887 offsetof(struct xdp_md, data)),
7888 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
7889 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
7890 BPF_JMP_REG(BPF_JLE, BPF_REG_3, BPF_REG_1, 1),
7891 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -5),
7892 BPF_MOV64_IMM(BPF_REG_0, 0),
7893 BPF_EXIT_INSN(),
7894 },
7895 .result = ACCEPT,
7896 .prog_type = BPF_PROG_TYPE_XDP,
7897 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
7898 },
7899 {
7900 "XDP pkt read, pkt_data <= pkt_meta', bad access 1",
7901 .insns = {
7902 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
7903 offsetof(struct xdp_md, data_meta)),
7904 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
7905 offsetof(struct xdp_md, data)),
7906 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
7907 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
7908 BPF_JMP_REG(BPF_JLE, BPF_REG_3, BPF_REG_1, 1),
7909 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
7910 BPF_MOV64_IMM(BPF_REG_0, 0),
7911 BPF_EXIT_INSN(),
7912 },
7913 .errstr = "R1 offset is outside of the packet",
7914 .result = REJECT,
7915 .prog_type = BPF_PROG_TYPE_XDP,
7916 },
7917 {
7918 "XDP pkt read, pkt_data <= pkt_meta', bad access 2",
7919 .insns = {
7920 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
7921 offsetof(struct xdp_md, data_meta)),
7922 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
7923 offsetof(struct xdp_md, data)),
7924 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
7925 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
7926 BPF_JMP_REG(BPF_JLE, BPF_REG_3, BPF_REG_1, 0),
7927 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -5),
7928 BPF_MOV64_IMM(BPF_REG_0, 0),
7929 BPF_EXIT_INSN(),
7930 },
7931 .errstr = "R1 offset is outside of the packet",
7932 .result = REJECT,
7933 .prog_type = BPF_PROG_TYPE_XDP,
7934 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
7935 },
7936 {
7937 "bpf_exit with invalid return code. test1",
7938 .insns = {
7939 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, 0),
7940 BPF_EXIT_INSN(),
7941 },
7942 .errstr = "R0 has value (0x0; 0xffffffff)",
7943 .result = REJECT,
7944 .prog_type = BPF_PROG_TYPE_CGROUP_SOCK,
7945 },
7946 {
7947 "bpf_exit with invalid return code. test2",
7948 .insns = {
7949 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, 0),
7950 BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 1),
7951 BPF_EXIT_INSN(),
7952 },
7953 .result = ACCEPT,
7954 .prog_type = BPF_PROG_TYPE_CGROUP_SOCK,
7955 },
7956 {
7957 "bpf_exit with invalid return code. test3",
7958 .insns = {
7959 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, 0),
7960 BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 3),
7961 BPF_EXIT_INSN(),
7962 },
7963 .errstr = "R0 has value (0x0; 0x3)",
7964 .result = REJECT,
7965 .prog_type = BPF_PROG_TYPE_CGROUP_SOCK,
7966 },
7967 {
7968 "bpf_exit with invalid return code. test4",
7969 .insns = {
7970 BPF_MOV64_IMM(BPF_REG_0, 1),
7971 BPF_EXIT_INSN(),
7972 },
7973 .result = ACCEPT,
7974 .prog_type = BPF_PROG_TYPE_CGROUP_SOCK,
7975 },
7976 {
7977 "bpf_exit with invalid return code. test5",
7978 .insns = {
7979 BPF_MOV64_IMM(BPF_REG_0, 2),
7980 BPF_EXIT_INSN(),
7981 },
7982 .errstr = "R0 has value (0x2; 0x0)",
7983 .result = REJECT,
7984 .prog_type = BPF_PROG_TYPE_CGROUP_SOCK,
7985 },
7986 {
7987 "bpf_exit with invalid return code. test6",
7988 .insns = {
7989 BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
7990 BPF_EXIT_INSN(),
7991 },
7992 .errstr = "R0 is not a known value (ctx)",
7993 .result = REJECT,
7994 .prog_type = BPF_PROG_TYPE_CGROUP_SOCK,
7995 },
7996 {
7997 "bpf_exit with invalid return code. test7",
7998 .insns = {
7999 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, 0),
8000 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 4),
8001 BPF_ALU64_REG(BPF_MUL, BPF_REG_0, BPF_REG_2),
8002 BPF_EXIT_INSN(),
8003 },
8004 .errstr = "R0 has unknown scalar value",
8005 .result = REJECT,
8006 .prog_type = BPF_PROG_TYPE_CGROUP_SOCK,
8007 },
8008 };
8009
8010 static int probe_filter_length(const struct bpf_insn *fp)
8011 {
8012 int len;
8013
8014 for (len = MAX_INSNS - 1; len > 0; --len)
8015 if (fp[len].code != 0 || fp[len].imm != 0)
8016 break;
8017 return len + 1;
8018 }
8019
8020 static int create_map(uint32_t size_value, uint32_t max_elem)
8021 {
8022 int fd;
8023
8024 fd = bpf_create_map(BPF_MAP_TYPE_HASH, sizeof(long long),
8025 size_value, max_elem, BPF_F_NO_PREALLOC);
8026 if (fd < 0)
8027 printf("Failed to create hash map '%s'!\n", strerror(errno));
8028
8029 return fd;
8030 }
8031
8032 static int create_prog_array(void)
8033 {
8034 int fd;
8035
8036 fd = bpf_create_map(BPF_MAP_TYPE_PROG_ARRAY, sizeof(int),
8037 sizeof(int), 4, 0);
8038 if (fd < 0)
8039 printf("Failed to create prog array '%s'!\n", strerror(errno));
8040
8041 return fd;
8042 }
8043
8044 static int create_map_in_map(void)
8045 {
8046 int inner_map_fd, outer_map_fd;
8047
8048 inner_map_fd = bpf_create_map(BPF_MAP_TYPE_ARRAY, sizeof(int),
8049 sizeof(int), 1, 0);
8050 if (inner_map_fd < 0) {
8051 printf("Failed to create array '%s'!\n", strerror(errno));
8052 return inner_map_fd;
8053 }
8054
8055 outer_map_fd = bpf_create_map_in_map(BPF_MAP_TYPE_ARRAY_OF_MAPS, NULL,
8056 sizeof(int), inner_map_fd, 1, 0);
8057 if (outer_map_fd < 0)
8058 printf("Failed to create array of maps '%s'!\n",
8059 strerror(errno));
8060
8061 close(inner_map_fd);
8062
8063 return outer_map_fd;
8064 }
8065
8066 static char bpf_vlog[32768];
8067
8068 static void do_test_fixup(struct bpf_test *test, struct bpf_insn *prog,
8069 int *map_fds)
8070 {
8071 int *fixup_map1 = test->fixup_map1;
8072 int *fixup_map2 = test->fixup_map2;
8073 int *fixup_prog = test->fixup_prog;
8074 int *fixup_map_in_map = test->fixup_map_in_map;
8075
8076 /* Allocating HTs with 1 elem is fine here, since we only test
8077 * for verifier and not do a runtime lookup, so the only thing
8078 * that really matters is value size in this case.
8079 */
8080 if (*fixup_map1) {
8081 map_fds[0] = create_map(sizeof(long long), 1);
8082 do {
8083 prog[*fixup_map1].imm = map_fds[0];
8084 fixup_map1++;
8085 } while (*fixup_map1);
8086 }
8087
8088 if (*fixup_map2) {
8089 map_fds[1] = create_map(sizeof(struct test_val), 1);
8090 do {
8091 prog[*fixup_map2].imm = map_fds[1];
8092 fixup_map2++;
8093 } while (*fixup_map2);
8094 }
8095
8096 if (*fixup_prog) {
8097 map_fds[2] = create_prog_array();
8098 do {
8099 prog[*fixup_prog].imm = map_fds[2];
8100 fixup_prog++;
8101 } while (*fixup_prog);
8102 }
8103
8104 if (*fixup_map_in_map) {
8105 map_fds[3] = create_map_in_map();
8106 do {
8107 prog[*fixup_map_in_map].imm = map_fds[3];
8108 fixup_map_in_map++;
8109 } while (*fixup_map_in_map);
8110 }
8111 }
8112
8113 static void do_test_single(struct bpf_test *test, bool unpriv,
8114 int *passes, int *errors)
8115 {
8116 int fd_prog, expected_ret, reject_from_alignment;
8117 struct bpf_insn *prog = test->insns;
8118 int prog_len = probe_filter_length(prog);
8119 int prog_type = test->prog_type;
8120 int map_fds[MAX_NR_MAPS];
8121 const char *expected_err;
8122 int i;
8123
8124 for (i = 0; i < MAX_NR_MAPS; i++)
8125 map_fds[i] = -1;
8126
8127 do_test_fixup(test, prog, map_fds);
8128
8129 fd_prog = bpf_verify_program(prog_type ? : BPF_PROG_TYPE_SOCKET_FILTER,
8130 prog, prog_len, test->flags & F_LOAD_WITH_STRICT_ALIGNMENT,
8131 "GPL", 0, bpf_vlog, sizeof(bpf_vlog), 1);
8132
8133 expected_ret = unpriv && test->result_unpriv != UNDEF ?
8134 test->result_unpriv : test->result;
8135 expected_err = unpriv && test->errstr_unpriv ?
8136 test->errstr_unpriv : test->errstr;
8137
8138 reject_from_alignment = fd_prog < 0 &&
8139 (test->flags & F_NEEDS_EFFICIENT_UNALIGNED_ACCESS) &&
8140 strstr(bpf_vlog, "Unknown alignment.");
8141 #ifdef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
8142 if (reject_from_alignment) {
8143 printf("FAIL\nFailed due to alignment despite having efficient unaligned access: '%s'!\n",
8144 strerror(errno));
8145 goto fail_log;
8146 }
8147 #endif
8148 if (expected_ret == ACCEPT) {
8149 if (fd_prog < 0 && !reject_from_alignment) {
8150 printf("FAIL\nFailed to load prog '%s'!\n",
8151 strerror(errno));
8152 goto fail_log;
8153 }
8154 } else {
8155 if (fd_prog >= 0) {
8156 printf("FAIL\nUnexpected success to load!\n");
8157 goto fail_log;
8158 }
8159 if (!strstr(bpf_vlog, expected_err) && !reject_from_alignment) {
8160 printf("FAIL\nUnexpected error message!\n");
8161 goto fail_log;
8162 }
8163 }
8164
8165 (*passes)++;
8166 printf("OK%s\n", reject_from_alignment ?
8167 " (NOTE: reject due to unknown alignment)" : "");
8168 close_fds:
8169 close(fd_prog);
8170 for (i = 0; i < MAX_NR_MAPS; i++)
8171 close(map_fds[i]);
8172 sched_yield();
8173 return;
8174 fail_log:
8175 (*errors)++;
8176 printf("%s", bpf_vlog);
8177 goto close_fds;
8178 }
8179
8180 static bool is_admin(void)
8181 {
8182 cap_t caps;
8183 cap_flag_value_t sysadmin = CAP_CLEAR;
8184 const cap_value_t cap_val = CAP_SYS_ADMIN;
8185
8186 #ifdef CAP_IS_SUPPORTED
8187 if (!CAP_IS_SUPPORTED(CAP_SETFCAP)) {
8188 perror("cap_get_flag");
8189 return false;
8190 }
8191 #endif
8192 caps = cap_get_proc();
8193 if (!caps) {
8194 perror("cap_get_proc");
8195 return false;
8196 }
8197 if (cap_get_flag(caps, cap_val, CAP_EFFECTIVE, &sysadmin))
8198 perror("cap_get_flag");
8199 if (cap_free(caps))
8200 perror("cap_free");
8201 return (sysadmin == CAP_SET);
8202 }
8203
8204 static int set_admin(bool admin)
8205 {
8206 cap_t caps;
8207 const cap_value_t cap_val = CAP_SYS_ADMIN;
8208 int ret = -1;
8209
8210 caps = cap_get_proc();
8211 if (!caps) {
8212 perror("cap_get_proc");
8213 return -1;
8214 }
8215 if (cap_set_flag(caps, CAP_EFFECTIVE, 1, &cap_val,
8216 admin ? CAP_SET : CAP_CLEAR)) {
8217 perror("cap_set_flag");
8218 goto out;
8219 }
8220 if (cap_set_proc(caps)) {
8221 perror("cap_set_proc");
8222 goto out;
8223 }
8224 ret = 0;
8225 out:
8226 if (cap_free(caps))
8227 perror("cap_free");
8228 return ret;
8229 }
8230
8231 static int do_test(bool unpriv, unsigned int from, unsigned int to)
8232 {
8233 int i, passes = 0, errors = 0;
8234
8235 for (i = from; i < to; i++) {
8236 struct bpf_test *test = &tests[i];
8237
8238 /* Program types that are not supported by non-root we
8239 * skip right away.
8240 */
8241 if (!test->prog_type) {
8242 if (!unpriv)
8243 set_admin(false);
8244 printf("#%d/u %s ", i, test->descr);
8245 do_test_single(test, true, &passes, &errors);
8246 if (!unpriv)
8247 set_admin(true);
8248 }
8249
8250 if (!unpriv) {
8251 printf("#%d/p %s ", i, test->descr);
8252 do_test_single(test, false, &passes, &errors);
8253 }
8254 }
8255
8256 printf("Summary: %d PASSED, %d FAILED\n", passes, errors);
8257 return errors ? EXIT_FAILURE : EXIT_SUCCESS;
8258 }
8259
8260 int main(int argc, char **argv)
8261 {
8262 struct rlimit rinf = { RLIM_INFINITY, RLIM_INFINITY };
8263 struct rlimit rlim = { 1 << 20, 1 << 20 };
8264 unsigned int from = 0, to = ARRAY_SIZE(tests);
8265 bool unpriv = !is_admin();
8266
8267 if (argc == 3) {
8268 unsigned int l = atoi(argv[argc - 2]);
8269 unsigned int u = atoi(argv[argc - 1]);
8270
8271 if (l < to && u < to) {
8272 from = l;
8273 to = u + 1;
8274 }
8275 } else if (argc == 2) {
8276 unsigned int t = atoi(argv[argc - 1]);
8277
8278 if (t < to) {
8279 from = t;
8280 to = t + 1;
8281 }
8282 }
8283
8284 setrlimit(RLIMIT_MEMLOCK, unpriv ? &rlim : &rinf);
8285 return do_test(unpriv, from, to);
8286 }
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