23 lines · cpp
1// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.2// See https://llvm.org/LICENSE.txt for license information.3// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception4 5// Simple test for a fuzzer.6// Here the target has a shallow OOM bug and a deeper crash.7// Make sure we can find the crash while ignoring OOMs.8#include <cstddef>9#include <cstdint>10 11static volatile int *Sink;12static volatile int *Zero;13 14extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {15 if (Size >= 3 && Data[0] == 'O' && Data[1] == 'O' && Data[2] == 'M')16 Sink = new int[1 << 28]; // instant OOM with -rss_limit_mb=128.17 if (Size >= 4 && Data[0] == 'F' && Data[1] == 'U' && Data[2] == 'Z' &&18 Data[3] == 'Z') // a bit deeper crash.19 *Zero = 42;20 return 0;21}22 23