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jeffv via plug on 23 Jul 2026 06:12:27 -0700
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[PLUG] New RefluXFS Linux flaw lets attackers gain root privileges
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- From: jeffv via plug <plug@lists.phillylinux.org>
- To: Philadelphia Linux User's Group Discussion List <plug@lists.phillylinux.org>
- Subject: [PLUG] New RefluXFS Linux flaw lets attackers gain root privileges
- Date: Thu, 23 Jul 2026 09:12:17 -0400
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https://www.bleepingcomputer.com/news/linux/new-refluxfs-linux-flaw-lets-attackers-gain-root-privileges/
Dubbed RefluXFS by the Qualys Threat Research Unit (TRU), which found
and reported it, the security flaw affects systems with an XFS
filesystem with reflink enabled (a default configuration on major
enterprise Linux distributions), running Linux kernel v4.11 or later,
with a directory writable by an unprivileged local user, and a
high-value target (a root-owned configuration file or SUID-root binary).
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