| // RUN: %clang_hwasan %s -o %t |
| // RUN: not %run %t 50 2>&1 | FileCheck %s |
| // RUN: not %run %t 40 2>&1 | FileCheck %s |
| // RUN: not %run %t 30 2>&1 | FileCheck %s |
| |
| // REQUIRES: stable-runtime |
| |
| #include <stdlib.h> |
| #include <stdio.h> |
| #include <sanitizer/hwasan_interface.h> |
| |
| int main(int argc, char **argv) { |
| __hwasan_enable_allocator_tagging(); |
| if (argc != 2) return 0; |
| int realloc_size = atoi(argv[1]); |
| char * volatile x = (char*)malloc(40); |
| free(x); |
| x = realloc(x, realloc_size); |
| // CHECK: ERROR: HWAddressSanitizer: invalid-free on address |
| // CHECK: tags: [[PTR_TAG:..]]/[[MEM_TAG:..]] (ptr/mem) |
| // CHECK: freed by thread {{.*}} here: |
| // CHECK: previously allocated by thread {{.*}} here: |
| // CHECK: Memory tags around the buggy address (one tag corresponds to 16 bytes): |
| // CHECK: =>{{.*}}[[MEM_TAG]] |
| fprintf(stderr, "DONE\n"); |
| __hwasan_disable_allocator_tagging(); |
| // CHECK-NOT: DONE |
| } |
