src/libcompiler_builtins/compiler-rt/test/asan/TestCases/Posix/new_array_cookie_test.cc

   1 // REQUIRES: asan-64-bits
   2 // RUN: %clangxx_asan -O3 %s -o %t
   3 // RUN:                                    not %run %t 2>&1  | FileCheck %s
   4 // RUN: %env_asan_opts=poison_array_cookie=1 not %run %t 2>&1  | FileCheck %s
   5 // RUN: %env_asan_opts=poison_array_cookie=0 not %run %t 2>&1  | FileCheck %s --check-prefix=NO_COOKIE
   6 #include <stdio.h>
   7 #include <stdlib.h>
   8 struct C {
   9   int x;
  10   ~C() {
  11     fprintf(stderr, "ZZZZZZZZ\n");
  12     exit(1);
  13   }
  14 };
  15
  16 int main(int argc, char **argv) {
  17   C *buffer = new C[argc];
  18   buffer[-2].x = 10;
  19 // CHECK: AddressSanitizer: heap-buffer-overflow
  20 // CHECK: in main {{.*}}new_array_cookie_test.cc:[[@LINE-2]]
  21 // CHECK: is located 0 bytes inside of 12-byte region
  22 // NO_COOKIE: ZZZZZZZZ
  23   delete [] buffer;
  24 }