xfs: avoid dereferencing log items after push callbacks
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.
CVE-2026-31453
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-31453
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "90c60e16401248a4900f3f9387f563d0178dcf34",
"lessThan": "c8a2ab339b88d10fc34a3318c92f07d8a467019d",
"versionType": "git"
},
{
"status": "affected",
"version": "90c60e16401248a4900f3f9387f563d0178dcf34",
"lessThan": "7121b22b0bac89394cc4c6a54b5aebc15347bdf5",
"versionType": "git"
},
{
"status": "affected",
"version": "90c60e16401248a4900f3f9387f563d0178dcf34",
"lessThan": "c4d603e8e58a3bf35480135ccca2b4f7238abda5",
"versionType": "git"
},
{
"status": "affected",
"version": "90c60e16401248a4900f3f9387f563d0178dcf34",
"lessThan": "95fb5d643cc70959baa54cd17f52f80ffc3295e7",
"versionType": "git"
},
{
"status": "affected",
"version": "90c60e16401248a4900f3f9387f563d0178dcf34",
"lessThan": "451c6329d9afa45862c36fe6677eb7750db60617",
"versionType": "git"
},
{
"status": "affected",
"version": "90c60e16401248a4900f3f9387f563d0178dcf34",
"lessThan": "79ef34ec0554ec04bdbafafbc9836423734e1bd6",
"versionType": "git"
}
],
"programFiles": [
"fs/xfs/xfs_trace.h",
"fs/xfs/xfs_trans_ail.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.9"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.9",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.1.168",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.131",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.80",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.21",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "6.19.11",
"versionType": "semver",
"lessThanOrEqual": "6.19.*"
},
{
"status": "unaffected",
"version": "7.0",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"fs/xfs/xfs_trace.h",
"fs/xfs/xfs_trans_ail.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-31453
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #39883 · Revision 1
- Added to Heist Feed
- Publisher date