CVE-2026-31453
In the Linux kernel, the following vulnerability has been resolved: xfs: avoid dereferencing log items after push callbacks After xfsaild_push_item() calls iop_push(), the log item may have been freed if the AIL lock was dropped during the push.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.13%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In the Linux kernel, the following vulnerability has been resolved: xfs: avoid dereferencing log items after push callbacks After xfsaild_push_item() calls iop_push(), the log item may have been freed if the AIL lock was dropped during the push. Background inode reclaim or the dquot shrinker can free the log item while the AIL lock is not held, and the tracepoints in the switch statement dereference the log item after iop_push() returns. Fix this by capturing the log item type, flags, and LSN before calling xfsaild_push_item(), and introducing a new xfs_ail_push_class trace event class that takes these pre-captured values and the ailp pointer instead of the log item pointer.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.13% probability · 3th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/451c6329d9afa45862c36fe6677eb7750db60617Patch
- https://git.kernel.org/stable/c/7121b22b0bac89394cc4c6a54b5aebc15347bdf5Patch
- https://git.kernel.org/stable/c/79ef34ec0554ec04bdbafafbc9836423734e1bd6Patch
- https://git.kernel.org/stable/c/95fb5d643cc70959baa54cd17f52f80ffc3295e7Patch
- https://git.kernel.org/stable/c/c4d603e8e58a3bf35480135ccca2b4f7238abda5Patch
- https://git.kernel.org/stable/c/c8a2ab339b88d10fc34a3318c92f07d8a467019dPatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.