Google Develops Kfuzztest for Fuzzing Internal Linux Kernel Functions
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Linux Kernel
Fuzz Testing
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Google develops KFuzzTest for fuzzing internal Linux kernel functions, sparking discussion about its open-source status.
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> To demonstrate this framework's viability, support for KFuzzTest has been prototyped in a development fork of syzkaller, enabling coverage-guided fuzzing. To validate its end-to-end effectiveness, we performed an experiment by manually introducing an off-by-one buffer over-read into [...]
"kfuzztest: a new kernel fuzzing framework" (2025-08) https://lwn.net/Articles/1033619/
But there is also fuzztest?
google/fuzztest: https://github.com/google/fuzztest