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92a42be0 SL |
1 | // RUN: %clang_cl_asan -O0 %s -Fe%t |
2 | // RUN: not %run %t 2>&1 | FileCheck %s | |
3 | ||
4 | #include <stdio.h> | |
5 | #include <string.h> | |
6 | #include <malloc.h> | |
7 | ||
8 | int main() { | |
9 | char *ptr = _strdup("Hello"); | |
10 | int subscript = 1; | |
11 | ptr[subscript] = '3'; | |
12 | printf("%s\n", ptr); | |
13 | fflush(0); | |
14 | // CHECK: H3llo | |
15 | ||
16 | subscript = -1; | |
17 | ptr[subscript] = 42; | |
18 | // CHECK: AddressSanitizer: heap-buffer-overflow on address [[ADDR:0x[0-9a-f]+]] | |
19 | // CHECK: WRITE of size 1 at [[ADDR]] thread T0 | |
20 | // CHECK: {{#0 .* main .*}}intercept_strdup.cc:[[@LINE-3]] | |
21 | // CHECK: [[ADDR]] is located 1 bytes to the left of 6-byte region | |
22 | // CHECK: allocated by thread T0 here: | |
5bcae85e SL |
23 | // |
24 | // The first frame is our wrapper normally but will be malloc in the dynamic | |
25 | // config. | |
26 | // CHECK: #0 {{.*}} in {{malloc|__asan_wrap_strdup}} | |
27 | // | |
28 | // The local call to _strdup above may be the second or third frame depending | |
29 | // on whether we're using the dynamic config. | |
30 | // CHECK: #{{[12]}} {{.*}} in main {{.*}}intercept_strdup.cc:[[@LINE-21]] | |
92a42be0 SL |
31 | free(ptr); |
32 | } |