CVE-2026-97521
CVE CVE-2026-97521EUVD EUVD-2026-86119Published 2026-09-24T16:05:21.000ZLast changed 2026-09-28T05:30:59.000Z
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: gfs2: fix quota init duplicate scan gfs2_quota_init() checks for duplicate quota_change IDs while holding qd_lock and the quota hash bucket bitlock. That path used gfs2_qd_search_bucket(), which takes a lockref reference via lockref_get_not_dead(). On PREEMPT_RT this may sleep, which is not allowed under the bucket bitlock, triggering "sleeping function called from invalid context". Use a no-ref bucket lookup in this path, then continue duplicate handling without taking a lockref there. Refactor gfs2_qd_search_bucket() to build on top of the no-ref helper so lookup traversal stays in one place. This patch fixes a bug reported by syzbot.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux patch: 0; de0d95c26c41c1776e4d23b1a8b3f2bcfd1dae5f <7fdcf16e5e14e11028f5bcaa6d25075eb5e876a0; patch: 6.18.53; de0d95c26c41c1776e4d23b1a8b3f2bcfd1dae5f <812a766e2b0a8f4d094393fad13475c57f5f86db; de0d95c26c41c1776e4d23b1a8b3f2bcfd1dae5f <b99a1f0f18ee50445907f55069e88bcfd8947383; patch: 7.2; 6.11; patch: 6.12.111
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
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