Comments (3)
TheShiftedBit
commented on April 28, 2024
I think this should be possible when fuzzing pure Python, simply by providing the right symbolizer symbols. I'll have to ensure that this doesn't break native symbolization though.
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TheShiftedBit
commented on April 28, 2024
Done. Pushed a change that replicates the NEW_FUNC feature from libFuzzer as NEW_PY_FUNC; this means Atheris will print data about some new functions when it discovers them.
Initially, I implemented this by providing a definition of __sanitizer_symbolize_pc, which taught libFuzzer how to print this information itself. However, said function is not called when using a sanitizer that provides its own definition of that function. This simpler approach therefore seems better.
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alex
commented on April 28, 2024
Wonderful, thank you!
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