Instrument test utility functions to increase fuzzer efficiency #1915
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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.
Byron
approved these changes
May 15, 2024
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Fuzz Introspector was reporting a high percentage of fuzz blockers in the
fuzz_difftest. 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_funcdecorator.Fuzz Introspector Before & After Screenshots
Before
After