1// REQUIRES: gwp_asan
2// RUN: %clangxx_gwp_asan %s -o %t
3// RUN: %expect_crash %run %t 2>&1 | FileCheck %s
4
5// CHECK: GWP-ASan detected a memory error
6// CHECK: Use After Free at 0x{{[a-f0-9]+}} (0 bytes into a 10-byte allocation
7
8#include <cstdlib>
9
10int main() {
11 char *Ptr = reinterpret_cast<char *>(malloc(10));
12
13 for (unsigned i = 0; i < 10; ++i) {
14 *(Ptr + i) = 0x0;
15 }
16
17 free(Ptr);
18 volatile char x = *Ptr;
19 return 0;
20}
21

source code of compiler-rt/test/gwp_asan/use_after_free.cpp