High · CVSS 7.8CVE-2026-31453

xfs: avoid dereferencing log items after push callbacksCVE-2026-31453

Answer in brief

CVE-2026-31453 records a High severity (CVSS 7.8) vulnerability in xfs: avoid dereferencing log items after push callbacks. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Apr 22, 2026Updated Oct 16, 2026Source checked Oct 16, 2026First seen by HOL Oct 16, 2026Material review Oct 16, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 7.8
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Linux/Linuxgeneric	>=90c60e16401248a4900f3f9387f563d0178dcf34 <c8a2ab339b88d10fc34a3318c92f07d8a467019d \|\| >=90c60e16401248a4900f3f9387f563d0178dcf34 <7121b22b0bac89394cc4c6a54b5aebc15347bdf5 \|\| >=90c60e16401248a4900f3f9387f563d0178dcf34 <c4d603e8e58a3bf35480135ccca2b4f7238abda5 \|\| >=90c60e16401248a4900f3f9387f563d0178dcf34 <95fb5d643cc70959baa54cd17f52f80ffc3295e7 \|\| >=90c60e16401248a4900f3f9387f563d0178dcf34 <451c6329d9afa45862c36fe6677eb7750db60617 \|\| >=90c60e16401248a4900f3f9387f563d0178dcf34 <79ef34ec0554ec04bdbafafbc9836423734e1bd6	c8a2ab339b88d10fc34a3318c92f07d8a467019d, 7121b22b0bac89394cc4c6a54b5aebc15347bdf5, c4d603e8e58a3bf35480135ccca2b4f7238abda5, 95fb5d643cc70959baa54cd17f52f80ffc3295e7, 451c6329d9afa45862c36fe6677eb7750db60617, 79ef34ec0554ec04bdbafafbc9836423734e1bd6
Linux/Linuxgeneric	5.9	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to c8a2ab339b88d10fc34a3318c92f07d8a467019d if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Apr 22, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Oct 16, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Oct 16, 2026

Sources and claim methodology

Upstream source 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.

Quoted source text, attributed separately from HOL analysis.