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Currently getting a complete report requires a complex, multi-step dance (including getting information that external users are not interested in -- guilty file). Simplify interface down to 2 functions: Parse and Symbolize. Parse does what it did before, Symbolize symbolizes report and fills in maintainers. This simplifies both implementations of Reporter interface and all users of the interface. Potentially we could get this down to 1 function Parse that does everything. However, (1) Symbolize can fail, while Parse cannot, (2) usually we want to ignore (log) Symbolize errors, but otherwise proceed with the report, (3) repro does not need symbolization for all but the last report.
syzkaller - kernel fuzzer
syzkaller is an unsupervised coverage-guided kernel fuzzer. Linux kernel fuzzing has the most support, akaros, freebsd, fuchsia, netbsd and windows are supported to varying degrees.
The project mailing list is syzkaller@googlegroups.com. You can subscribe to it with a google account or by sending an email to syzkaller+subscribe@googlegroups.com.
Documentation
Initially, syzkaller was developed with Linux kernel fuzzing in mind, but now it's being extended to support other OS kernels as well. Most of the documentation at this moment is related to the Linux kernel. For other OS kernels check: Akaros, FreeBSD, Fuchsia, NetBSD, Windows.
- How to install syzkaller
- How to use syzkaller
- How syzkaller works
- How to contribute to syzkaller
- How to report Linux kernel bugs
External Articles
- Kernel QA with syzkaller and qemu (tutorial on how to setup syzkaller with qemu)
- Syzkaller crash DEMO (tutorial on how to extend syzkaller with new syscalls)
- Coverage-guided kernel fuzzing with syzkaller (by David Drysdale)
- ubsan, kasan, syzkaller und co (video) (by Florian Westphal)
- Debugging a kernel crash found by syzkaller (by Quentin Casasnovas)
- Linux Plumbers 2016 talk slides
- syzkaller: the next gen kernel fuzzer (basics of operations, tutorial on how to run syzkaller and how to extend it to fuzz new drivers)
Disclaimer
This is not an official Google product.