1// RUN: %clang_cl_asan -O0 %s -Fe%t
2// RUN: not %run %t 2>&1 | FileCheck %s
3
4#include <malloc.h>
5
6int main() {
7  char *buffer = (char*)malloc(42);
8  free(buffer);
9  buffer[0] = 42;
10// CHECK: AddressSanitizer: heap-use-after-free on address [[ADDR:0x[0-9a-f]+]]
11// CHECK: WRITE of size 1 at [[ADDR]] thread T0
12// CHECK-NEXT: {{#0 .* main .*malloc_uaf.cc}}:[[@LINE-3]]
13// CHECK: [[ADDR]] is located 0 bytes inside of 42-byte region
14// CHECK: freed by thread T0 here:
15// CHECK-NEXT: {{#0 .* free }}
16// CHECK-NEXT: {{#1 .* main .*malloc_uaf.cc}}:[[@LINE-8]]
17// CHECK: previously allocated by thread T0 here:
18// CHECK-NEXT: {{#0 .* malloc }}
19// CHECK-NEXT: {{#1 .* main .*malloc_uaf.cc}}:[[@LINE-12]]
20}
21