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Backdoor in wait4(): Linux kernel vulnerability

https://sudonull.com/backdoor-in-wait4-linux-kernel-vulnerability

Analysis of a real backdoor in the Linux kernel from 2003: how an assignment error in wait4() opened root access. Lessons for developers: code review, Git, fuzzing. Study the details of the attack.

Windows Kernel Policy: Only WHCP Drivers from 2026

https://sudonull.com/windows-kernel-policy-only-whcp-drivers-from-2026

Microsoft tightens driver trust in Windows 11 and Server 2025 kernel. Rejection of outdated certificates, audit mode, AppLocker. Details of changes for developers and admins — read and prepare.

OptimaOS on Rust: single kernel for all platforms

https://sudonull.com/optimaos-on-rust-single-kernel-for-all-platforms

Explore OptimaOS architecture — kernel on Rust without forks for desktop, servers and Edge. Separation of mechanisms/policies, Linux ABI, memory safety. Detailed breakdown for developers.

Anticheats: user-mode and kernel-mode limitations

https://sudonull.com/anticheats-user-mode-and-kernel-mode-limitations

Breakdown of anticheat levels, DLL injection detection and DMA. Technical principles for developers. Study the weaknesses and evolution of game protection systems.

SystemRescue 13.0: kernel updates and HiDPI

https://sudonull.com/systemrescue-13-0-kernel-updates-and-hidpi

New features in SystemRescue 13.0: Linux 6.18 LTS, bcachefs 1.37, yq, HiDPI scaling. Ideal for system recovery. Download ISO and test it.

From the web

The Linux Kernel Archives

https://www.kernel.org/

3 days ago · This site is operated by the Linux Kernel Organization, a 501 (c)3 nonprofit corporation, with support from the following sponsors.

Kernel (operating system) - Wikipedia

https://en.wikipedia.org/wiki/Kernel_%28operating_system%29

This central component of a computer system is responsible for executing programs. The kernel takes responsibility for deciding at any time which of the many running programs should be allocated to the …

GitHub - torvalds/linux: Linux kernel source tree · GitHub

https://github.com/torvalds/linux

Jul 6, 2017 · Linux kernel ============ The Linux kernel is the core of any Linux operating system. It manages hardware, system resources, and provides the fundamental services for all other software.

The Linux Kernel Archives - Releases

https://www.kernel.org/category/releases.html

Feb 25, 2026 · To find out the version of your kernel, run uname -r: ... If you see anything at all after the dash, you are running a distribution kernel. Please use the support channels offered by your …

Linux kernel - Wikipedia

https://en.wikipedia.org/wiki/Linux_kernel

The Linux kernel developer community maintains a stable kernel by applying fixes for software bugs that have been discovered during the development of the subsequent stable kernel.

Kernel in Operating System - GeeksforGeeks

https://www.geeksforgeeks.org/operating-systems/kernel-in-operating-system/

Apr 23, 2026 · The kernel manages system resources, such as the CPU, memory and devices, ensuring everything works together smoothly and efficiently. It handles tasks like running programs, accessing …

K3rnelPan1c — KernelOS & !K3rnalyze (Official)

https://kernelos.org/

KernelOS gives you a complete Windows overhaul — from kernel-level scheduling to power management — all working together to give you every possible edge. Extensively tuned MMCSS and …

Kernel coverage at LWN.net

https://lwn.net/Kernel/

Jun 26, 2026 · The LWN kernel-source database The LWN kernel-source database is a subscriber-only feature offering deep insights into Linux kernel releases, the code that went into them, and the …

Linux Kernel Releases - Linuxlookup

https://www.linuxlookup.com/linux_kernel

3 days ago · Linux hardware Reviews, Linux software Reviews, Linux benchmarks and Linux HowTo Guides.

What is a Kernel? | Definition from TechTarget

https://www.techtarget.com/searchdatacenter/definition/kernel

Aug 1, 2024 · Learn what a kernel is and the primary jobs of an operating system kernel. Examine the different types of kernels as well as their history and development.

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