Libfuzzer shim crash about libafl

[anarcheuz]

Seems to be fixed. Thank you!

[domenukk]

Thanks for reporting

[domenukk]

Your new_size should never exceed the size_t MaxSize parameter, and it looks like it does in this case?

[domenukk]

Ah wait, you are right.

LibAFL/libafl_targets/src/libfuzzer/mutators.rs

Line 354 in 50d7542

input.bytes_mut().copy_from_slice(&bytes);

Want to do a PR?

[domenukk]

Actually, we might want a replace_bytes in BytesInput so we don't need the extra copy at all

[domenukk]

Actually it should be doable in place

[domenukk]

Can you try #2347? Thanks for reporting!
We could also use some CI for this...