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tests/fuzz/block_decompress.c
53 строки
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daniellerozenblit
Check that `dest` is valid for decompression (#3555)
01 апр 2023, 09:00
Не верифицирован
01 апр 2023, 09:00
fcaf06d
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/** * Copyright (c) Meta Platforms, Inc. and affiliates. * All rights reserved. * * This source code is licensed under both the BSD-style license (found in the * LICENSE file in the root directory of this source tree) and the GPLv2 (found * in the COPYING file in the root directory of this source tree). * You may select, at your option, one of the above-listed licenses. */ /** * This fuzz target attempts to decompress the fuzzed data with the simple * decompression function to ensure the decompressor never crashes. */ #include "fuzz_data_producer.h" #define ZSTD_STATIC_LINKING_ONLY #include <stddef.h> #include <stdlib.h> #include <stdio.h> #include "fuzz_helpers.h" #include "zstd.h" static ZSTD_DCtx *dctx = NULL; static void* rBuf = NULL; static size_t bufSize = 0; int LLVMFuzzerTestOneInput(const uint8_t *src, size_t size) { size_t const neededBufSize = ZSTD_BLOCKSIZE_MAX; FUZZ_dataProducer_t *producer = FUZZ_dataProducer_create(src, size); /* Allocate all buffers and contexts if not already allocated */ if (neededBufSize > bufSize) { free(rBuf); rBuf = FUZZ_malloc_rand(neededBufSize, producer); bufSize = neededBufSize; } if (!dctx) { dctx = ZSTD_createDCtx(); FUZZ_ASSERT(dctx); } ZSTD_decompressBegin(dctx); ZSTD_decompressBlock(dctx, rBuf, neededBufSize, src, size); FUZZ_dataProducer_free(producer); #ifndef STATEFUL_FUZZING ZSTD_freeDCtx(dctx); dctx = NULL; #endif return 0; }