CVE-2026-31454: xfs: save ailp before dropping the AIL lock in push callbacks

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

• linux linux kernel5.9 and later · before 5.10.253
• linux linux kernel5.11 and later · before 5.15.203
• linux linux kernel5.16 and later · before 6.1.168
• linux linux kernel6.2 and later · before 6.6.131
• linux linux kernel6.7 and later · before 6.12.80
• linux linux kernel6.13 and later · before 6.18.21
• linux linux kernel6.19 and later · before 6.19.11
• linux linux kernel7.0

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

• Linux Linux

  • 5.9affected
  • 90c60e16401248a4900f3f9387f563d0178dcf34 and later · before edd1637d4e3911ab6c760f553f2040fe72f61a13affected · git
  • 90c60e16401248a4900f3f9387f563d0178dcf34 and later · before 19437e4f7bb909afde832b39372aa2f3ce3cfd88affected · git
  • 90c60e16401248a4900f3f9387f563d0178dcf34 and later · before 6dbe17f19c290a72ce57d5abc70e1fad0c3e14e5affected · git
  • 90c60e16401248a4900f3f9387f563d0178dcf34 and later · before 75669e987137f49c99ca44406bf0200d1892dd16affected · git
  • 90c60e16401248a4900f3f9387f563d0178dcf34 and later · before d8fc60bbaf5aea1604bf9f4ed565da6a1ac7a87daffected · git
  • 90c60e16401248a4900f3f9387f563d0178dcf34 and later · before 50f5f056807b7bed74f4f307f2ca0ed92f3e556daffected · git
  • 90c60e16401248a4900f3f9387f563d0178dcf34 and later · before 4c7d50147316cf049462f327c4a3e9dc2b7f1dd0affected · git
  • 90c60e16401248a4900f3f9387f563d0178dcf34 and later · before 394d70b86fae9fe865e7e6d9540b7696f73aa9b6affected · git
  • before 5.9not affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Other highest-scoring records for the same primary product.

• CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
  90Now
• CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV
  89Now
• CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
  85Now

Published before and after this one in the same product

• ← EarlierCVE-2026-31452Apr 22, 2026 · ext4: convert inline data to extents when truncate exceeds inline size
  31Monitor
• ← EarlierCVE-2026-31453Apr 22, 2026 · xfs: avoid dereferencing log items after push callbacks
  31Monitor
• Later →CVE-2026-31455Apr 22, 2026 · xfs: stop reclaim before pushing AIL during unmount
  31Monitor

Root cause

After a memory region is freed, another reference pointing to it is still used. By then, the same region may have been allocated for different data.

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

1free(dev->buf);2/* ... another thread is still running ... */3process(dev->buf);

1lock(&dev->lock);2free(dev->buf);3dev->buf = NULL;4unlock(&dev->lock);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.