1 // RUN: %clang_cl_asan -O0 %p/dll_host.cc -Fe%t 2 // RUN: %clang_cl_asan -LD -O0 %s -Fe%t.dll 3 // RUN: not %run %t %t.dll 2>&1 | FileCheck %s 4 5 #include <malloc.h> 6 7 extern "C" __declspec(dllexport) 8 int test_function() { 9 int *buffer = (int*)malloc(42); 10 free(buffer); 11 buffer[0] = 42; 12 // CHECK: AddressSanitizer: heap-use-after-free on address [[ADDR:0x[0-9a-f]+]] 13 // CHECK: WRITE of size 4 at [[ADDR]] thread T0 14 // CHECK-NEXT: test_function {{.*}}dll_malloc_uaf.cc:[[@LINE-3]] 15 // CHECK-NEXT: main {{.*}}dll_host 16 // 17 // CHECK: [[ADDR]] is located 0 bytes inside of 42-byte region 18 // CHECK-LABEL: freed by thread T0 here: 19 // CHECK-NEXT: free 20 // CHECK-NEXT: test_function {{.*}}dll_malloc_uaf.cc:[[@LINE-10]] 21 // CHECK-NEXT: main {{.*}}dll_host 22 // 23 // CHECK-LABEL: previously allocated by thread T0 here: 24 // CHECK-NEXT: malloc 25 // CHECK-NEXT: test_function {{.*}}dll_malloc_uaf.cc:[[@LINE-16]] 26 // CHECK-NEXT: main {{.*}}dll_host 27 return 0; 28 } 29
