CVE-2026-31455In the Linux kernel, the following vulnerability has been resolved: xfs: stop reclaim before pushing AIL during unmount The unmount sequence in xfs_unmount_flush_inodes() pushed the AIL while backgro…
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In the Linux kernel, the following vulnerability has been resolved: xfs: stop reclaim before pushing AIL during unmount The unmount sequence in xfs_unmount_flush_inodes() pushed the AIL while background reclaim and inodegc are still running. This is broken independently of any use-after-free issues - background reclaim and inodegc should not be running while the AIL is being pushed during unmount, as inodegc can dirty and insert inodes into the AIL during the flush, and background reclaim can race to abort and free dirty inodes. Reorder xfs_unmount_flush_inodes() to stop inodegc and cancel background reclaim before pushing the AIL. Stop inodegc before cancelling m_reclaim_work because the inodegc worker can re-queue m_reclaim_work via xfs_inodegc_set_reclaimable.
- CVSS
- 7.8 HIGH (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-416
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Jun 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
linux linux_kernel linux:linux_kernel | from 5.9 before 5.10.253; from 5.11 before 5.15.203; from 5.16 before 6.1.168; from 6.2 before 6.6.131; from 6.7 before 6.12.80; from 6.13 before 6.18.21; from 6.19 before 6.19.11; 7.0; and 5 more ranges | NVD |
References
- https://git.kernel.org/stable/c/239d734c00644072862fa833805c4471573b1445patch
- https://git.kernel.org/stable/c/4f24a767e3d64a5f58c595b5c29b6063a201f1e3patch
- https://git.kernel.org/stable/c/558e3275d8a3b101be18a7fe7d1634053e9d9b07patch
- https://git.kernel.org/stable/c/8147e304d7d32fd5c3e943babc296ce2873dc279patch
- https://git.kernel.org/stable/c/a89434a6188d8430ea31120da96e3e4cefb58686patch
- https://git.kernel.org/stable/c/bda27fc0b4eb3a425d9a18475c4cb94fbe862c60patch
- https://git.kernel.org/stable/c/d38135af04a3ad8a585c899d176efc8e97853115patch
- https://git.kernel.org/stable/c/e6cc490048f78b009259a5f032acead9f789c34cpatch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.