compiler-rt/test/asan/TestCases/Windows/heapalloc_dll_unload_realloc_uaf.cpp

   1 #include <stdio.h>
   2 #include <windows.h>
   3
   4 // RUN: %clang_cl_asan %LD %Od -DDLL %s %Fe%t.dll
   5 // RUN: %clang_cl %Od -DEXE %s %Fe%te.exe
   6 // RUN: %env_asan_opts=windows_hook_rtl_allocators=true not %run %te.exe %t.dll 2>&1 | FileCheck %s
   7 // REQUIRES: asan-dynamic-runtime
   8 // REQUIRES: asan-32-bits
   9
  10 #include <cassert>
  11 #include <stdio.h>
  12 #include <windows.h>
  13 extern "C" {
  14 #if defined(EXE)
  15
  16 int main(int argc, char **argv) {
  17   void *region_without_hooks = HeapAlloc(GetProcessHeap(), 0, 10);
  18   HMODULE lib = LoadLibraryA(argv[1]);
  19   assert(lib != INVALID_HANDLE_VALUE);
  20   assert(0 != FreeLibrary(lib));
  21   assert(0 != HeapFree(GetProcessHeap(), 0, region_without_hooks));
  22   HeapReAlloc(GetProcessHeap(), 0, region_without_hooks, 100); //should throw nested error
  23 }
  24 #elif defined(DLL)
  25 // This global is registered at startup.
  26
  27 BOOL WINAPI DllMain(HMODULE, DWORD reason, LPVOID) {
  28   fprintf(stderr, "in DLL(reason=%d)\n", (int)reason);
  29   fflush(0);
  30   return TRUE;
  31 }
  32
  33 // CHECK: in DLL(reason=1)
  34 // CHECK: in DLL(reason=0)
  35 // CHECK: AddressSanitizer: nested bug in the same thread, aborting.
  36
  37 #else
  38 #error oops!
  39 #endif
  40 }