OneFuzz is cross-platform, and the actively-supported platforms vary by component.
We continuously test the CLI on Windows 11 Pro and Ubuntu 20.04 LTS, both on the x64 architecture. The CLI client is written in Python 3, and targets Python 3.7 and up. We distribute a self-contained executable CLI build for Windows which bundles a Python interpreter.
OneFuzz deploys targets into Azure Virtual Machine Scale Sets for fuzzing (and
supporting tasks). OneFuzz permits arbitrary choice of VM SKU and OS Image,
including custom images. We continuously test on Window 11 Pro x64 (using the
Azure OS image URN MicrosoftWindowsDesktop:Windows-11:win11-22h2-pro:latest)
and Ubuntu 22.04 LTS x64 (using the Azure OS image URN
Canonical:0001-com-ubuntu-server-jammy:22_04-lts:latest).
LibFuzzer targets are built by linking the libFuzzer runtime to a test function, tied together with compiler-provided static instrumentation (sanitizers). The resulting executable has runtime options and output that can vary with the compiler and libFuzzer runtime used.
We actively support libFuzzer targets produced using the following compiler toolchains: