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| author | Mike Aizatsky <aizatsky@chromium.org> | 2016-04-08 23:32:24 +0000 |
|---|---|---|
| committer | Mike Aizatsky <aizatsky@chromium.org> | 2016-04-08 23:32:24 +0000 |
| commit | 94e29668b0e53d9792c40671308cae8320325405 (patch) | |
| tree | 5f7e012ad6d7783793888bbed811d0b39451acb8 /llvm/lib/Fuzzer/FuzzerLoop.cpp | |
| parent | f96fd0dd1d2b55af1e4347ad4c23a91e713a55b0 (diff) | |
| download | llvm-94e29668b0e53d9792c40671308cae8320325405.zip llvm-94e29668b0e53d9792c40671308cae8320325405.tar.gz llvm-94e29668b0e53d9792c40671308cae8320325405.tar.bz2 | |
[libfuzzer] defensive assert
llvm-svn: 265866
Diffstat (limited to 'llvm/lib/Fuzzer/FuzzerLoop.cpp')
| -rw-r--r-- | llvm/lib/Fuzzer/FuzzerLoop.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/llvm/lib/Fuzzer/FuzzerLoop.cpp b/llvm/lib/Fuzzer/FuzzerLoop.cpp index f09ac05..afdc9fa 100644 --- a/llvm/lib/Fuzzer/FuzzerLoop.cpp +++ b/llvm/lib/Fuzzer/FuzzerLoop.cpp @@ -503,8 +503,9 @@ void Fuzzer::MutateAndTestOne() { auto &U = ChooseUnitToMutate(); MutateInPlaceHere.resize(Options.MaxLen); - memcpy(MutateInPlaceHere.data(), U.data(), U.size()); size_t Size = U.size(); + assert(Size <= Options.MaxLen && "Oversized Unit"); + memcpy(MutateInPlaceHere.data(), U.data(), Size); for (int i = 0; i < Options.MutateDepth; i++) { size_t NewSize = 0; |