Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 5.9, < 5.10.253 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/19437e4f7bb909afde832b39372aa2f3ce3cfd88Patch
- https://git.kernel.org/stable/c/394d70b86fae9fe865e7e6d9540b7696f73aa9b6Patch
- https://git.kernel.org/stable/c/4c7d50147316cf049462f327c4a3e9dc2b7f1dd0Patch
- https://git.kernel.org/stable/c/50f5f056807b7bed74f4f307f2ca0ed92f3e556dPatch
- https://git.kernel.org/stable/c/6dbe17f19c290a72ce57d5abc70e1fad0c3e14e5Patch
- https://git.kernel.org/stable/c/75669e987137f49c99ca44406bf0200d1892dd16Patch
- https://git.kernel.org/stable/c/d8fc60bbaf5aea1604bf9f4ed565da6a1ac7a87dPatch
- https://git.kernel.org/stable/c/edd1637d4e3911ab6c760f553f2040fe72f61a13Patch
FAQ
What is CVE-2026-31454?
CVE-2026-31454 is a vulnerability with a CVSS score of 7.8 (HIGH). 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 lo...
How severe is CVE-2026-31454?
CVE-2026-31454 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-31454?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.