| // RUN: %clang_cl_asan -O0 %s -Fe%t |
| // RUN: not %run %t 2>&1 | FileCheck %s |
| |
| #include <malloc.h> |
| |
| int main() { |
| char *buffer = (char*)realloc(0, 32), |
| *stale = buffer; |
| buffer = (char*)realloc(buffer, 64); |
| // The 'stale' may now point to a free'd memory. |
| stale[0] = 42; |
| // CHECK: AddressSanitizer: heap-use-after-free on address [[ADDR:0x[0-9a-f]+]] |
| // CHECK: WRITE of size 1 at [[ADDR]] thread T0 |
| // CHECK-NEXT: {{#0 .* main .*use_after_realloc.cc}}:[[@LINE-3]] |
| // CHECK: [[ADDR]] is located 0 bytes inside of 32-byte region |
| // CHECK: freed by thread T0 here: |
| // CHECK-NEXT: {{#0 .* realloc }} |
| // CHECK-NEXT: {{#1 .* main .*use_after_realloc.cc}}:[[@LINE-9]] |
| // CHECK: previously allocated by thread T0 here: |
| // CHECK-NEXT: {{#0 .* realloc }} |
| // CHECK-NEXT: {{#1 .* main .*use_after_realloc.cc}}:[[@LINE-14]] |
| free(buffer); |
| } |
