24 lines · cpp
1// RUN: %clang_cl_asan %Od %p/dll_host.cpp %Fe%t2// RUN: %clang_cl_asan %LD %Od %s %Fe%t.dll3// RUN: not %run %t %t.dll 2>&1 | FileCheck %s4 5#include <malloc.h>6extern "C" __declspec(dllexport)7int test_function() {8 char *buffer = (char*)malloc(42);9 buffer[-1] = 42;10 // CHECK: AddressSanitizer: heap-buffer-overflow on address [[ADDR:0x[0-9a-f]+]]11 // CHECK: WRITE of size 1 at [[ADDR]] thread T012 // CHECK-NEXT: test_function {{.*}}dll_malloc_left_oob.cpp:[[@LINE-3]]13 // CHECK-NEXT: main {{.*}}dll_host.cpp14 //15 // CHECK: [[ADDR]] is located 1 bytes before 42-byte region16 // CHECK-LABEL: allocated by thread T0 here:17 // CHECK-NEXT: malloc18 // CHECK: test_function {{.*}}dll_malloc_left_oob.cpp:[[@LINE-10]]19 // CHECK-NEXT: main {{.*}}dll_host.cpp20 // CHECK-LABEL: SUMMARY21 free(buffer);22 return 0;23}24