examples/msan_fuzz_test.cc

// Copyright 2020 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//    https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

// A fuzz target that causes an MSAN error (e.g., uninitialized variables).

#include <cstddef>
#include <cstdint>

extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
  int a;
  if (a) ++a;
  return 0;
}