{"cve":"CVE-2026-31454","nvd":{"published":"2026-04-22T14:16:39.823","modified":"2026-10-19T19:17:54.943","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nxfs: save ailp before dropping the AIL lock in push callbacks\n\nIn xfs_inode_item_push() and xfs_qm_dquot_logitem_push(), the AIL lock\nis dropped to perform buffer IO. Once the cluster buffer no longer\nprotects the log item from reclaim, the log item may be freed by\nbackground reclaim or the dquot shrinker. The subsequent spin_lock()\ncall dereferences lip->li_ailp, which is a use-after-free.\n\nFix this by saving the ailp pointer in a local variable while the AIL\nlock is held and the log item is guaranteed to be valid.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":["CWE-416"],"references":["https://git.kernel.org/stable/c/19437e4f7bb909afde832b39372aa2f3ce3cfd88","https://git.kernel.org/stable/c/394d70b86fae9fe865e7e6d9540b7696f73aa9b6","https://git.kernel.org/stable/c/4c7d50147316cf049462f327c4a3e9dc2b7f1dd0","https://git.kernel.org/stable/c/50f5f056807b7bed74f4f307f2ca0ed92f3e556d","https://git.kernel.org/stable/c/6dbe17f19c290a72ce57d5abc70e1fad0c3e14e5"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-21T03:43:09.190223697+00:00"},"epss":{"cve":"CVE-2026-31454","score":0.00126,"percentile":0.02274,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}