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