diff options
Diffstat (limited to 'llvm/lib/Fuzzer/FuzzerMutate.cpp')
| -rw-r--r-- | llvm/lib/Fuzzer/FuzzerMutate.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/llvm/lib/Fuzzer/FuzzerMutate.cpp b/llvm/lib/Fuzzer/FuzzerMutate.cpp index e7efe6a6e0a..21df1184e98 100644 --- a/llvm/lib/Fuzzer/FuzzerMutate.cpp +++ b/llvm/lib/Fuzzer/FuzzerMutate.cpp @@ -129,7 +129,8 @@ size_t MutationDispatcher::Mutate_InsertRepeatedBytes(uint8_t *Data, size_t Idx = Rand(Size + 1); // Insert new values at Data[Idx]. memmove(Data + Idx + N, Data + Idx, Size - Idx); - uint8_t Byte = RandCh(Rand); + // Give preference to 0x00 and 0xff. + uint8_t Byte = Rand.RandBool() ? Rand(256) : (Rand.RandBool() ? 0 : 255); for (size_t i = 0; i < N; i++) Data[Idx + i] = Byte; return Size + N; |
