diff options
Diffstat (limited to 'lib/fuzzer/FuzzerMutate.cpp')
-rw-r--r-- | lib/fuzzer/FuzzerMutate.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/fuzzer/FuzzerMutate.cpp b/lib/fuzzer/FuzzerMutate.cpp index e0e457852..865e598fd 100644 --- a/lib/fuzzer/FuzzerMutate.cpp +++ b/lib/fuzzer/FuzzerMutate.cpp @@ -339,7 +339,9 @@ size_t MutationDispatcher::InsertPartOf(const uint8_t *From, size_t FromSize, size_t MutationDispatcher::Mutate_CopyPart(uint8_t *Data, size_t Size, size_t MaxSize) { if (Size > MaxSize || Size == 0) return 0; - if (Rand.RandBool()) + // If Size == MaxSize, `InsertPartOf(...)` will + // fail so there's no point using it in this case. + if (Size == MaxSize || Rand.RandBool()) return CopyPartOf(Data, Size, Data, Size); else return InsertPartOf(Data, Size, Data, Size, MaxSize); |