> 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 [...]
I am confused, is KFuzzTest an OSS tool, or just a name for some feature they pushed into the kernal that is proprietary?
From the linked LKML post:
> 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/
google/syzkaller @main: https://github.com/google/syzkaller
But there is also fuzztest?
google/fuzztest: https://github.com/google/fuzztest