Clone this repo:
  1. 07e4f42 [fuchsia] Update for zx_cprng_draw by Adam Barth · 2 days ago master
  2. f618e0a [syscalls] Use vmar..._old apis. by David Moore · 3 weeks ago
  3. 2203fc7 [fuchsia] Update to zx_cprng_draw_new by Adam Barth · 5 weeks ago
  4. 1b7c2ca Remove recently deleted zx_job_set_relative_importance by George Kulakowski · 5 weeks ago
  5. 6a93ca6 [fuchsia] Update for port API change by Adam Barth · 7 weeks ago

syzkaller - kernel fuzzer

Build Status

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 You can subscribe to it with a google account or by sending an email to

List of found bugs.


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.

External Articles


This is not an official Google product.