RefluXFS: A Linux Kernel Local Privilege Escalation to Root in XFS (CVE-2026-64600)
Summary
The article documents CVE-2026-64600, a race-condition vulnerability in the Linux kernel XFS CoW path that allows unprivileged local users to overwrite files and gain root access. It covers the scope, PoC, affected distributions, and emphasizes immediate kernel patching and reboot. The piece also notes an AI-assisted research approach with Anthropic and provides guidance for patch management and mitigations.