23 lines · cpp
1// RUN: %clangxx_asan -O0 %s -o %t2// RUN: not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK --check-prefix=MALLOC-CTX3 4// Also works if no malloc context is available.5// RUN: %env_asan_opts=malloc_context_size=0:fast_unwind_on_malloc=0 not %run %t 2>&1 | FileCheck %s6// RUN: %env_asan_opts=malloc_context_size=0:fast_unwind_on_malloc=1 not %run %t 2>&1 | FileCheck %s7// REQUIRES: stable-runtime8 9#include <stdlib.h>10#include <string.h>11int main(int argc, char **argv) {12 char *x = (char*)malloc(10 * sizeof(char));13 memset(x, 0, 10);14 int res = x[argc];15 free(x + 5); // BOOM16 // CHECK: AddressSanitizer: attempting free on address{{.*}}in thread T017 // CHECK: invalid-free.cpp:[[@LINE-2]]18 // CHECK: is located 5 bytes inside of 10-byte region19 // CHECK: allocated by thread T0 here:20 // MALLOC-CTX: invalid-free.cpp:[[@LINE-8]]21 return res;22}23