Update libafl-based fuzzers

[addisoncrump]

As requested in #2020.

[addisoncrump]

@tokatoka Seems that aflrustrust is broken. Should we remove it?

[addisoncrump]

Hm, wait, something strange is happening here. I tested stb_stbi_read_fuzzer with make test-run-... for all of the fuzzers I changed and it worked.

[tokatoka]

@tokatoka Seems that aflrustrust is broken. Should we remove it?

you should remove it. we have alternative from the GSoC student

[addisoncrump]

Seems to be an llvm version compatibility issue...

[tokatoka]

It's strange, can you reproduce this on your local machine?
because ddg-instr.cc's error is supposed to be ignored

[addisoncrump]

Annoyingly, no, this works fine locally.

[addisoncrump]

Just confirmed, this builds just fine locally. @DonggeLiu I think there is some bad cache associated with CI here, I have tested these locally and most are fine. harfbuzz_hb-shape-fuzzer_17863b still does not build, but I believe this bug benchmark to be too old to be compatible with modern clang due to an invalid function pointer cast. I'm investigating how to fix that.

[tokatoka]

harfbuzz_hb-shape-fuzzer_17863b still does not build

yes from what i saw, usually the projects with that commit hash does not build (but it's not used for cov benchmark either

[DonggeLiu]

Thanks both!

[DonggeLiu]

If you think the Fuzzers+Benchmarks CIs here are unreliable and blocking you, we can verify this via an experiment.
Use minimum values for these 2 lines will help speed up the experiment and save resource:

fuzzbench/service/experiment-config.yaml

Lines 5 to 6 in d8a7723

	trials: 20
	max_total_time: 82800 # 23 hours, the default time for preemptible experiments.

E.g.,

trials: 2
max_total_time: 1800  # 30 min to show two timestamps

[addisoncrump]

Moving to #2027 so we can collab better.