Identify the Obstacle: — Analyze coverage reports and code to find checksums, PRNGs, or complex validation blocking the fuzzer.
2
Add Conditional Compilation: — Modify the code to bypass the obstacle during fuzzing builds using `#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION` (C/C++) or `cfg!(fuzzing)` (Rust).
3
Verify Coverage Improvement: — Rebuild with fuzzing instrumentation and run the fuzzer to confirm new code paths are explored.
4
Assess False Positive Risk: — Consider if skipping the check introduces impossible program states or crashes that cannot occur in production.
5
Implement Targeted Patch: — If needed, use a more targeted patch, like providing safe defaults instead of skipping validation entirely.
6
Measure Patch Effectiveness: — Quantify the improvement using line, basic block, or function coverage.
7
Document Patches: — Add comments explaining why the patch is safe and how it differs from production code.
bypass checksum validation during fuzzinghandle time-seeded PRNGs in fuzzingskip complex format validation for fuzzingimprove code coverage during fuzzingovercome fuzzing obstaclespatch code for better fuzzingmodify code for fuzzing buildsuse conditional compilation for fuzzing
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