googleprojectzero / googleprojectzero/Jackalope

All unique samples discarded

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#67 3 comments 0 reactions 0 assignees View on GitHub

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Dominant language
C++
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Description

When I run the fuzzer for a period of time (1-2 days), all the sample files are discarded, resulting in exec/s == 0.

Unique samples: X (X discarded)

At this point, I cannot use the resume mode to continue running the fuzzer (0 exec/s) and have to start over from the beginning.

I tested with about ~500 sample files. These files are the result of running winafl-cmin.py

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Research direction

Start by reproducing the issue with about 500 sample files produced by winafl-cmin.py, running the fuzzer for an extended period and then using resume mode. Investigate why all unique samples become discarded; done means resume mode continues processing samples instead of reaching 0 exec/s.

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Assessment

Tech stack
cpp, python
Domain
testing-qa
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

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