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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 Rejection of outdated certificates, audit mode, AppLocker.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/

1 day 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

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 …

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 …

Linux kernel - Wikipedia

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

Since the late 1990s, it has been included in many operating system distributions, many of which are called Linux. One such Linux kernel operating system is Android, which is used in many mobile and …

What is a Kernel? | Definition from TechTarget

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

Aug 1, 2024 · What is a kernel? A kernel is the essential foundation of a computer's operating system (OS). It's the core that provides basic services for all other parts of the OS.

The Linux Kernel documentation

https://docs.kernel.org/

The essential guides for interacting with the kernel’s development community and getting your work upstream. Manuals for use by developers working to interface with the rest of the kernel. Various …

Linux Kernel Documentation

https://www.kernel.org/doc/

Standards documents applicable to the Linux kernel Single Unix Specification v4 (Also known as Open Group Base Specifications issue 7, and POSIX 2008. See especially system interfaces) C99 …

The Linux Kernel Archives - About

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

Aug 6, 2024 · The Linux Kernel Organization is a California Public Benefit Corporation established in 2002 to distribute the Linux kernel and other Open Source software to the public without charge.

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