This critical Linux vulnerability is putting millions of systems at risk - how to protect yours

CVE-2026-31431, also known as Copy Fail, is a critical Linux kernel vulnerability that's been hiding out since 2017 and is ...
SecurityWeek

‘Copy Fail’ Logic Flaw in Linux Kernel Enables System Takeover

Copy Fail, a logic bug in the Linux kernel, allows users to write 4-byte code into other files’ page cache and achieve root ...

CISA says ‘Copy Fail’ flaw now exploited to root Linux systems

CISA has warned that threat actors have started exploiting the "Copy Fail" Linux security vulnerability in the wild, one day ...
CSO Online

‘Trivial’ exploit can give attackers root access to Linux kernel

Experts say until the distros release patches, CSOs have to beware of unauthorized privilege escalation; Kubernetes container ...
Hackaday

Linux Kernel From First Principles

Want to learn the internals of the Linux kernel? Version 6.5-rc5 has about 36 million lines of code in it, so good luck! [Seiya] has a different approach. Go back to the beginning and examine the 0.01 ...
Linux Journal

Kernel Korner - Network Programming in the Kernel

All Linux distributions provide a wide range of network applications—from dæmons that provide a variety of services such as WWW, mail and SSH to client programs that access one or more of these ...