1 // RUN: %clangxx_asan -O0 %s -o %t
2 // RUN: not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK --check-prefix=MALLOC-CTX
3
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 %s
6 // RUN: %env_asan_opts=malloc_context_size=0:fast_unwind_on_malloc=1 not %run %t 2>&1 | FileCheck %s
7 // XFAIL: arm-linux-gnueabi
8 // XFAIL: armv7l-unknown-linux-gnueabihf
9
10 #include <stdlib.h>
11 #include <string.h>
main(int argc,char ** argv)12 int main(int argc, char **argv) {
13 char *x = (char*)malloc(10 * sizeof(char));
14 memset(x, 0, 10);
15 int res = x[argc];
16 free(x + 5); // BOOM
17 // CHECK: AddressSanitizer: attempting free on address{{.*}}in thread T0
18 // CHECK: invalid-free.cc:[[@LINE-2]]
19 // CHECK: is located 5 bytes inside of 10-byte region
20 // CHECK: allocated by thread T0 here:
21 // MALLOC-CTX: invalid-free.cc:[[@LINE-8]]
22 return res;
23 }
24