FreeBSD Device Drivers: From First Steps to Kernel Mastery is a free, open-source book designed to teach kernel coding through 38 chapters, 6 appendices, and hands-on labs. It guides readers from beginner to the ability to write, debug, and submit production-quality FreeBSD drivers on a real FreeBSD 14.x system.

CVE-2026-4747 affects FreeBSD versions 13.5, 14.3, 14.4, and 15.0, specifically when the NFS server with kgssapi.ko loaded is utilized. The vulnerability arises in the svc_rpc_gss_validate() function, which improperly reconstructs an RPC header into a 128-byte stack buffer for GSS-API signature verification.

FreeBSD lacks a Wi-Fi driver for older MacBook models. An AI-generated driver is being developed to enable Wi-Fi functionality on a 2016 MacBook Pro running FreeBSD.