27 lines · c
1// RUN: %clang_hwasan %s -o %t2// RUN: not %run %t 50 2>&1 | FileCheck %s3// RUN: not %run %t 40 2>&1 | FileCheck %s4// RUN: not %run %t 30 2>&1 | FileCheck %s5 6#include <stdlib.h>7#include <stdio.h>8#include <sanitizer/hwasan_interface.h>9 10int main(int argc, char **argv) {11 __hwasan_enable_allocator_tagging();12 if (argc != 2) return 0;13 int realloc_size = atoi(argv[1]);14 char * volatile x = (char*)malloc(40);15 free(x);16 x = realloc(x, realloc_size);17 // CHECK: ERROR: HWAddressSanitizer: invalid-free on address18 // CHECK: tags: [[PTR_TAG:..]]/[[MEM_TAG:..]] (ptr/mem)19 // CHECK: freed by thread {{.*}} here:20 // CHECK: previously allocated by thread {{.*}} here:21 // CHECK: Memory tags around the buggy address (one tag corresponds to 16 bytes):22 // CHECK: =>{{.*}}[[MEM_TAG]]23 fprintf(stderr, "DONE\n");24 __hwasan_disable_allocator_tagging();25// CHECK-NOT: DONE26}27