Karol MazurekAug 11, 2025
It is probably the weirdest way I've found a stack overflow #vulnerability until now (patched in 15.6). Here is a blog post for those interested in #IOKit #macOS #kernel or #Apple Silicon #Exploit Development masochist looking for a target. Enjoy!
https://afine.com/a-mouse-move-that-crashed-the-system-stack-buffer-overflow-in-display-driver-on-macos/
Karol MazurekDec 25, 2024
Deep dive into #Apple #macOS #drivers: Explore #IOKit and #BSD internals. Understand driver types and #kernel interfaces. Includes practical #RE techniques with #code examples. Enjoy and Merry Christmas!🎄
https://karol-mazurek.medium.com/drivers-on-macos-26edbde370ab?sk=v2%2F8a5bbc18-aae7-4a68-b0dd-bb5ce70b5752
Drivers on macOS | Medium

Guide to IOKit and BSD drivers on macOS. Learn about driver types, implementation, registration process, and how to interact with them using practical code examples.

Medium
Show threadLouis GerbargDec 25, 2022

@juandesant @dataandpolitics @glennf

1. The kernel (#xnu) was amalgamation of code that was mostly independent of NeXT. #NeXTSTEP was based on Mach 2.5 & 4.3BSD with an ObjC based DriverKit. xnu was built from #osfmk which was Mach 3.0 and ported to Mac HW as part of the #MkLinux project, a fresh rebase of 4.4BSD-Lites2, and the driver system (#IOKit) was a ground up redesign, despite the existence of DriverKit and NuIO.

2/7