33 lines · cpp
1// RUN: %clangxx_hwasan -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s2// RUN: %clangxx_hwasan -O1 %s -o %t && not %run %t 2>&1 | FileCheck %s3// RUN: %clangxx_hwasan -O2 %s -o %t && not %run %t 2>&1 | FileCheck %s4// RUN: %clangxx_hwasan -O3 %s -o %t && not %run %t 2>&1 | FileCheck %s5 6#include <sanitizer/hwasan_interface.h>7#include <stdlib.h>8#include <string.h>9#include <unistd.h>10 11__attribute__((no_sanitize("hwaddress"))) void12ForceCallInterceptor(void *p, const void *a, size_t size) {13 memmove(p, a, size);14}15 16int main(int argc, char **argv) {17 __hwasan_enable_allocator_tagging();18 char a[] = {static_cast<char>(argc), 2, 3, 4};19 int size = sizeof(a);20 char *volatile p = (char *)malloc(size);21 free(p);22 ForceCallInterceptor(p, a, size);23 return 0;24 // CHECK: HWAddressSanitizer: tag-mismatch on address25 // CHECK: WRITE of size 426 // CHECK: #{{[[:digit:]]+}} 0x{{[[:xdigit:]]+}} in main {{.*}}memmove.cpp:[[@LINE-4]]27 // CHECK: Cause: use-after-free28 // CHECK: freed by thread29 // CHECK: #{{[[:digit:]]+}} 0x{{[[:xdigit:]]+}} in main {{.*}}memmove.cpp:[[@LINE-8]]30 // CHECK: previously allocated by thread31 // CHECK: #{{[[:digit:]]+}} 0x{{[[:xdigit:]]+}} in main {{.*}}memmove.cpp:[[@LINE-11]]32}33