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CVE PROGRAM SOURCE RECORD7.8 High

CVE-2026-31453

xfs: avoid dereferencing log items after push callbacks

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Status
Published
Published
Updated
Assigning organization
Linux

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 90c60e16401248a4900f3f9387f563d0178dcf34 to < c8a2ab339b88d10fc34a3318c92f07d8a467019daffected
  • 90c60e16401248a4900f3f9387f563d0178dcf34 to < 7121b22b0bac89394cc4c6a54b5aebc15347bdf5affected
  • 90c60e16401248a4900f3f9387f563d0178dcf34 to < c4d603e8e58a3bf35480135ccca2b4f7238abda5affected
  • 90c60e16401248a4900f3f9387f563d0178dcf34 to < 95fb5d643cc70959baa54cd17f52f80ffc3295e7affected
  • 90c60e16401248a4900f3f9387f563d0178dcf34 to < 451c6329d9afa45862c36fe6677eb7750db60617affected
  • 90c60e16401248a4900f3f9387f563d0178dcf34 to < 79ef34ec0554ec04bdbafafbc9836423734e1bd6affected

Linux Linux

Default version status: affected

  • 5.9affected
  • 0 to < 5.9unaffected
  • 6.1.168 to ≤ 6.1.*unaffected
  • 6.6.131 to ≤ 6.6.*unaffected
  • 6.12.80 to ≤ 6.12.*unaffected
  • 6.18.21 to ≤ 6.18.*unaffected
  • 6.19.11 to ≤ 6.19.*unaffected
  • 7.0 to ≤ *unaffected

References