Linux kernel source tree

How to create an OS from scratch

Linux shell for iOS

Affordable WiFi hacking platform for testing and learning

Flipper Zero firmware source code

Original Windows File Manager (winfile) with enhancements

πfs - the data-free filesystem!

ClamAV - Documentation is here: https://docs.clamav.net

Projects for an undergraduate OS course

v4l2-loopback device

Official MINIX sources - Automatically replicated from gerrit.minix3.org

Targeted evil twin attacks against WPA2-Enterprise networks. Indirect wireless pivots using hostile portal attacks.

The official SuiteSparse library: a suite of sparse matrix algorithms authored or co-authored by Tim Davis, Texas A&M University.

Research code & papers from members of vx-underground.

Meltdown Exploit PoC

VirtualBox VM detection mitigation loader

Mirror of the Xen Repository (PRs not accepted see: http://wiki.xenproject.org/wiki/Submitting_Xen_Project_Patches)

Disseminated, Distributed OS for Hardware Resource Disaggregation. USENIX OSDI 2018 Best Paper.

Minimal, collaboratively written kernel

AIFM: High-Performance, Application-Integrated Far Memory

Apple BCE (Buffer Copy Engine) and associated subsystems drivers for T2-based Macs

Apple iBridge devices support (Touchbar/ALS) for MacBook Pro 2018 and onward.

Nautilus Aerokernel

Security and Hacking Tools, Exploits, Proof of Concepts, Shellcodes, Scripts.

some kind of operating system

Example of using ELF hacking to inject malicious code into a target binary

Split execution environments for specialized OS/Rs (Unikernels, HRTs, etc.)