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GeezerVison is showing github.com — Instrument test utility functions to increase fuzzer efficiency by DaveLak · Pull Request #1915 · gitpython-developers/GitPython

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@DaveLak

@DaveLak DaveLak commented May 15, 2024

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Fuzz Introspector was reporting a high percentage of fuzz blockers in the fuzz_diff test. This means the fuzzing engine was unable to gain visibility into functions lower in the call stack than the blocking functions, making it less effective at producing interesting input data.

This clears a large percentage of the fuzz blockers by adding fuzzer instrumentation to them via the @atheris.instrument_func decorator.

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@DaveLak
Instrument test utility functions to increase fuzzer efficiency
315a2fd 
Fuzz Introspector was reporting a high percentage of fuzz blockers
in the `fuzz_diff` test. This means the fuzzing engine was unable
to gain visibility into functions lower in the call stack than the
blocking functions, making it less effective at producing interesting
input data.

This clears a large percentage of the fuzz blockers by adding fuzzer
instrumentation to them via the `@atheris.instrument_func` decorator.
Byron
Byron approved these changes May 15, 2024
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@Byron Byron left a comment

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Thanks a million! This looks like a tiny change for massive gains.

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@Byron
Byron merged commit adf4bf0 into gitpython-developers:main May 15, 2024
@DaveLak
DaveLak deleted the fix-blockers-in-fuzz-diff branch May 15, 2024 19:30
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@Byron Byron Byron approved these changes

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@DaveLak @Byron
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