compiler-rt/test/gwp_asan/use_after_deletea.cpp


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20

// REQUIRES: gwp_asan
// RUN: %clangxx_gwp_asan %s -o %t
// RUN: %expect_crash %run %t 2>&1 | FileCheck %s

// CHECK: GWP-ASan detected a memory error
// CHECK: Use after free at 0x{{[a-f0-9]+}} (0 bytes into a 10-byte allocation

#include <cstdlib>

int main() {
  char *Ptr = new char[10];

  for (unsigned i = 0; i < 10; ++i) {
    *(Ptr + i) = 0x0;
  }

  delete[] Ptr;
  volatile char x = *Ptr;
  return 0;
}