| 1 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 2 | // See https://llvm.org/LICENSE.txt for license information. |
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| 3 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 4 | |
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| 5 | // Simple test for a fuzzer. |
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| 6 | // Here the target has a shallow OOM bug and a deeper crash. |
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| 7 | // Make sure we can find the crash while ignoring OOMs. |
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| 8 | #include <cstddef> |
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| 9 | #include <cstdint> |
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| 10 | |
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| 11 | static volatile int *Sink; |
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| 12 | static volatile int *Zero; |
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| 13 | |
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| 14 | extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { |
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| 15 | if (Size >= 3 && Data[0] == 'O' && Data[1] == 'O' && Data[2] == 'M') |
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| 16 | Sink = new int[1 << 28]; // instant OOM with -rss_limit_mb=128. |
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| 17 | if (Size >= 4 && Data[0] == 'F' && Data[1] == 'U' && Data[2] == 'Z' && |
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| 18 | Data[3] == 'Z') // a bit deeper crash. |
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| 19 | *Zero = 42; |
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| 20 | return 0; |
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| 21 | } |
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| 22 | |
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| 23 | |
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