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fuzzing-obstacles

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Patches past the barriers that stop a fuzzer making progress — checksum and hash verification, magic-value validation, time-based seeds, and other non-deterministic global state. Covers locating the blocking check, neutering it behind a fuzzing build flag, and avoiding the false positives a patch can introduce. Use when a fuzzer is stuck at validation, when coverage shows large regions behind a checksum, or when valid inputs are impractical to generate.

When to use

• bypassing checksum and hash verification
• handling magic-value validation
• managing time-based seeds
• addressing non-deterministic global state
• patching System Under Test for fuzzing
• using conditional compilation for fuzzing builds
• assessing false positive risk from patches

When not to use

• overcoming obstacles with a good seed corpus or dictionary
• handling simple validation like magic bytes
• grammar-based or structure-aware fuzzing
• situations where skipping checks introduces too many false positives
• code that is already fuzzing-friendly

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