28 lines · cpp
1// RUN: %clangxx_asan -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s2// RUN: %clangxx_asan -O1 %s -o %t && not %run %t 2>&1 | FileCheck %s3// RUN: %clangxx_asan -O2 %s -o %t && not %run %t 2>&1 | FileCheck %s4// RUN: %clangxx_asan -O3 %s -o %t && not %run %t 2>&1 | FileCheck %s5// REQUIRES: stable-runtime6 7#include <stdlib.h>8int main() {9 char *x = (char*)malloc(10 * sizeof(char));10 free(x);11 return x[5];12 // CHECK: {{.*ERROR: AddressSanitizer: heap-use-after-free on address}}13 // CHECK: {{0x.* at pc 0x.* bp 0x.* sp 0x.*}}14 // CHECK: {{READ of size 1 at 0x.* thread T0}}15 // CHECK: {{ #0 0x.* in main .*use-after-free.cpp:}}[[@LINE-4]]16 // CHECK: {{0x.* is located 5 bytes inside of 10-byte region .0x.*,0x.*}}17 // CHECK: {{freed by thread T0 here:}}18 // CHECK: {{ #0 0x.* in .*free}}19 // CHECK: {{ #[1-3] 0x.* in main .*use-after-free.cpp:}}[[@LINE-9]]20 21 // CHECK: {{previously allocated by thread T0 here:}}22 // CHECK: {{ #0 0x.* in .*malloc}}23 // CHECK: {{ #[1-3] 0x.* in main .*use-after-free.cpp:}}[[@LINE-14]]24 // CHECK: Shadow byte legend (one shadow byte represents {{[0-9]+}} application bytes):25 // CHECK: Global redzone:26 // CHECK: ASan internal:27}28