US government warns of severe CopyFail bug affecting major versions of Linux

U.S. cybersecurity agency CISA says the CopyFail bug is being actively used in hacking campaigns, and poses a major risk to servers and datacenters that rely on Linux.
The Hacker News

New Linux 'Copy Fail' Vulnerability Enables Root Access on Major Distributions

CVE-2026-31431 CVSS 7.8 flaw since 2017 enables root via 732-byte exploit, impacting major Linux distributions.

New Linux ‘Copy Fail’ flaw gives hackers root on major distros

An exploit has been published for a local privilege escalation vulnerability dubbed "Copy Fail" that impacts Linux kernels ...
OSTechNix

Copy Fail: The 732-Byte Script That Roots Every Major Linux Systems

Copy Fail (CVE-2026-31431) is a severe logic flaw in the Linux kernel affecting every distribution since 2017. Patch your ...
PCQuest

Copy Fail Linux flaw could turn a tiny kernel bug into root access

Copy Fail can turn a tiny Linux kernel flaw into root access. Learn how the page cache attack works, who is exposed, and why ...