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xfs
2 postsRefluXFS: XFS reflink race lets Linux users escalate to root (CVE-2026-64600)
Qualys details RefluXFS (CVE-2026-64600), an XFS reflink race enabling local privilege escalation to root on default RHEL, Rocky, and Fedora Server installs.
How the Linux kernel's iomap layer works
An LWN deep dive explains how the Linux kernel's iomap layer maps files to storage, replacing buffer heads and cutting filesystem boilerplate code.
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