kAFL | A fuzzer for full VM kernel/driver targets

See working with west for how to work on the checked out repos. It is safe to re-execute any of these commands on errors, for example if some dependencies could not be downloaded or to re-build qemu after local changes. For other problems, review the detailed steps inside this script. I case of errors, you may have to hunt down some python dependencies that did not install correctly. Try the corresponding packages provided by your distribution and ensure that a correct path to the Qemu-Nyx binary is provided in your local kafl.yaml.
We use west to keep a handle on repositories, and pipenv to manage Python dependencies. Simply create a new directory and initialize it as your west workspace and Python venv as follows:
kAFL includes an install.sh helper to automate setup and building of dependencies. These should work on any recent (2020/21) Ubuntu or Debian:
(Optional) Install kAFL into the Python venv so that you can easily launch it from your target/project folders:
kAFL requires a modified KVM-Nyx host kernel for efficient PT tracing and snapshots. The below steps build and install a custom kernel package based on your current/existing kernel config:
On reboot, make sure the new kernel is booted and KVM-NYX confirms that PT is supported on this CPU:
(Optional) Lauch kafl_fuzz.py to verify all python dependencies are met. You should be able to see a help message with all the config options: