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@MariusVanDerWijden MariusVanDerWijden commented Jan 11, 2021

Fixes the fuzzers

2021/01/11 11:12:10 workers: 16, corpus: 212 (24s ago), crashers: 0, restarts: 1/9679, execs: 7085542 (12365/sec), cover: 1996, uptime: 9m33s
2021/01/11 11:12:13 workers: 16, corpus: 212 (27s ago), crashers: 0, restarts: 1/9663, execs: 7121919 (12364/sec), cover: 1996, uptime: 9m36s
2021/01/11 11:12:16 workers: 16, corpus: 212 (30s ago), crashers: 0, restarts: 1/9699, execs: 7158058 (12363/sec), cover: 1996, uptime: 9m39s
2021/01/11 11:12:19 workers: 16, corpus: 212 (33s ago), crashers: 0, restarts: 1/9669, execs: 7194322 (12361/sec), cover: 1996, uptime: 9m42s

It decreases a bit the ability of the fuzzers to test everything, since the Pack(Unpack(in)) == in test was removed. However this test would often fail if the ABI only had a single argument, eg. 0x123...890 would be unpacked to 0x0000...0090 if the ABI only specifies a single uint8 argument, therefore the packing step could never recreate in.

The PR also reenables the abi fuzzer for oss-fuzz (it was disabled since it created so many errors)
@holiman If you think it is to early to put it on oss-fuzz we can also drop the last commit ed4865f

@MariusVanDerWijden MariusVanDerWijden marked this pull request as ready for review January 11, 2021 10:18
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LGTM. We'll notice if it starts failing on oss-fuzz, it's not a biggie to fix it later if so

@holiman holiman merged commit 3981822 into ethereum:master Jan 18, 2021
bulgakovk pushed a commit to bulgakovk/go-ethereum that referenced this pull request Jan 26, 2021
* tests/fuzzers/abi: better test generation

* tests/fuzzers/abi: fixed packing issue

* oss-fuzz: enable abi fuzzer
@MariusVanDerWijden MariusVanDerWijden deleted the abifuzzer branch November 30, 2021 15:32
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2 participants