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crypto/bn256: fix bn256Mul fuzzer to not hang on large input (#21872)

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* crypto/bn256: fix bn256Mul fuzzer to not hang on large input

* Update crypto/bn256/bn256_fuzz.go

Co-authored-by: ligi <ligi@ligi.de>

Co-authored-by: ligi <ligi@ligi.de>
This commit is contained in:
Daniel Liu 2024-11-29 16:08:31 +08:00
parent a64e42463a
commit ddc5e618a7
1 changed files with 6 additions and 0 deletions
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6
tests/fuzzers/bn256/bn256_fuzz.go
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@ -90,6 +90,12 @@ func FuzzMul(data []byte) int {
if remaining == 0 {
return 0
}
if remaining > 128 {
// The evm only ever uses 32 byte integers, we need to cap this otherwise
// we run into slow exec. A 236Kb byte integer cause oss-fuzz to report it as slow.
// 128 bytes should be fine though
return 0
}
buf := make([]byte, remaining)
input.Read(buf)