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Circumventing Fuzzing Roadblocks with Compiler Transformations (lafintel.wordpress.com)
7 points by wyldfire on Aug 16, 2016 | hide | past | favorite | 1 comment



> increase code coverage with AFL (and potentially other feedback driven fuzzers, e.g. libFuzzer

...

> AFL provides a different approach to cope with strcmp and memcmp functions. An example of the approach can be found in AFL’s instrumented_cmp.c file.

libFuzzer can hook these comparisons [1] to find the magic values.

[1] http://llvm.org/releases/3.8.1/docs/LibFuzzer.html#data-flow...




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