In the Linux kernel, the following vulnerability has been resolved:

xfs: save ailp before dropping the AIL lock in push callbacks

In xfs_inode_item_push() and xfs_qm_dquot_logitem_push(), the AIL lock
is dropped to perform buffer IO. Once the cluster buffer no longer
protects the log item from reclaim, the log item may be freed by
background reclaim or the dquot shrinker. The subsequent spin_lock()
call dereferences lip->li_ailp, which is a use-after-free.

Fix this by saving the ailp pointer in a local variable while the AIL
lock is held and the log item is guaranteed to be valid.

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History

Wed, 22 Apr 2026 14:15:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: xfs: save ailp before dropping the AIL lock in push callbacks In xfs_inode_item_push() and xfs_qm_dquot_logitem_push(), the AIL lock is dropped to perform buffer IO. Once the cluster buffer no longer protects the log item from reclaim, the log item may be freed by background reclaim or the dquot shrinker. The subsequent spin_lock() call dereferences lip->li_ailp, which is a use-after-free. Fix this by saving the ailp pointer in a local variable while the AIL lock is held and the log item is guaranteed to be valid.
Title xfs: save ailp before dropping the AIL lock in push callbacks
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-04-22T13:53:48.242Z

Reserved: 2026-03-09T15:48:24.091Z

Link: CVE-2026-31454

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-04-22T14:16:39.823

Modified: 2026-04-22T14:16:39.823

Link: CVE-2026-31454

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-22T20:00:08Z

Weaknesses

No weakness.