brotli_source_stream_fuzzer.cc 1.3 KB

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  1. // Copyright 2016 The Chromium Authors. All rights reserved.
  2. // Use of this source code is governed by a BSD-style license that can be
  3. // found in the LICENSE file.
  4. #include "net/filter/brotli_source_stream.h"
  5. #include <fuzzer/FuzzedDataProvider.h>
  6. #include "base/memory/ref_counted.h"
  7. #include "net/base/io_buffer.h"
  8. #include "net/base/test_completion_callback.h"
  9. #include "net/filter/fuzzed_source_stream.h"
  10. #include "net/filter/source_stream.h"
  11. // Fuzzer for BrotliSourceStream.
  12. //
  13. // |data| is used to create a FuzzedSourceStream.
  14. extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
  15. net::TestCompletionCallback callback;
  16. FuzzedDataProvider data_provider(data, size);
  17. auto fuzzed_source_stream =
  18. std::make_unique<net::FuzzedSourceStream>(&data_provider);
  19. std::unique_ptr<net::SourceStream> brotli_stream =
  20. net::CreateBrotliSourceStream(std::move(fuzzed_source_stream));
  21. while (true) {
  22. scoped_refptr<net::IOBufferWithSize> io_buffer =
  23. base::MakeRefCounted<net::IOBufferWithSize>(64);
  24. int result = brotli_stream->Read(io_buffer.get(), io_buffer->size(),
  25. callback.callback());
  26. // Releasing the pointer to IOBuffer immediately is more likely to lead to a
  27. // use-after-free.
  28. io_buffer = nullptr;
  29. if (callback.GetResult(result) <= 0)
  30. break;
  31. }
  32. return 0;
  33. }