{"id":"CVE-2026-74316","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-74316","summary":"NFSD: Handle layout stid in nfsd4_drop_revoked_stid()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nNFSD: Handle layout stid in nfsd4_drop_revoked_stid()\n\nnfsd4_drop_revoked_stid() has no SC_TYPE_LAYOUT case, so when a\nclient sends FREE_STATEID for an admin-revoked layout stid, the\ndefault branch releases cl_lock and returns without unhashing or\nreleasing the stid.  The stid remains in the IDR and on the\nper-client list until the client is destroyed.\n\nRemove the layout stid from the per-client list and call\nnfs4_put_stid() to drop the creation reference.  When the\nrefcount reaches zero, nfsd4_free_layout_stateid() handles the\nremaining cleanup: cancelling the fence worker, removing from\nthe per-file list, and freeing the slab object.","published":"2026-08-15T05:58:14.165Z","modified":"2026-08-18T03:56:46.532199065Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"Linux","name":"Kernel","fixedVersion":"6.12.97"}],"fix":null,"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/7ed62f7040ee182cf7dea5798f9e114235b31dae"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8024028ef91616cf91cc669f2446a0406bc0ba19"},{"type":"WEB","url":"https://git.kernel.org/stable/c/86b9898920a6d02b4149f4fef9efd77b8aa3b9ca"},{"type":"WEB","url":"https://git.kernel.org/stable/c/da6f86ff4f2dd490bea52419a49e19680efd5847"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74316.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74316"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-18T03:56:46.532199065Z"}}