diff options
| -rw-r--r-- | compiler-rt/lib/fuzzer/FuzzerMutate.cpp | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/compiler-rt/lib/fuzzer/FuzzerMutate.cpp b/compiler-rt/lib/fuzzer/FuzzerMutate.cpp index a825b83f489..29541eac5dc 100644 --- a/compiler-rt/lib/fuzzer/FuzzerMutate.cpp +++ b/compiler-rt/lib/fuzzer/FuzzerMutate.cpp @@ -529,7 +529,7 @@ size_t MutationDispatcher::MutateImpl(uint8_t *Data, size_t Size, size_t MutationDispatcher::MutateWithMask(uint8_t *Data, size_t Size, size_t MaxSize, const Vector<uint8_t> &Mask) { - assert(Size <= Mask.size()); + size_t MaskedSize = std::min(Size, Mask.size()); // * Copy the worthy bytes into a temporary array T // * Mutate T // * Copy T back. @@ -538,7 +538,7 @@ size_t MutationDispatcher::MutateWithMask(uint8_t *Data, size_t Size, if (T.size() < Size) T.resize(Size); size_t OneBits = 0; - for (size_t I = 0; I < Size; I++) + for (size_t I = 0; I < MaskedSize; I++) if (Mask[I]) T[OneBits++] = Data[I]; @@ -548,7 +548,7 @@ size_t MutationDispatcher::MutateWithMask(uint8_t *Data, size_t Size, assert(NewSize <= OneBits); (void)NewSize; // Even if NewSize < OneBits we still use all OneBits bytes. - for (size_t I = 0, J = 0; I < Size; I++) + for (size_t I = 0, J = 0; I < MaskedSize; I++) if (Mask[I]) Data[I] = T[J++]; return Size; |
