21 lines · cpp
1// RUN: %clang_cl_asan %Od %s %Fe%t2// RUN: not %run %t 2>&1 | FileCheck %s3 4#include <malloc.h>5 6int main() {7 char *buffer = (char*)realloc(0, 42);8 free(buffer);9 buffer[0] = 42;10 // CHECK: AddressSanitizer: heap-use-after-free on address [[ADDR:0x[0-9a-f]+]]11 // CHECK: WRITE of size 1 at [[ADDR]] thread T012 // CHECK-NEXT: {{#0 .* main .*realloc_uaf.cpp}}:[[@LINE-3]]13 // CHECK: [[ADDR]] is located 0 bytes inside of 42-byte region14 // CHECK: freed by thread T0 here:15 // CHECK-NEXT: {{#0 .* free }}16 // CHECK: {{ #[1-3] .* main .*realloc_uaf.cpp}}:[[@LINE-8]]17 // CHECK: previously allocated by thread T0 here:18 // CHECK-NEXT: {{#0 .* realloc }}19 // CHECK: {{ #[1-3] .* main .*realloc_uaf.cpp}}:[[@LINE-12]]20}21