{"id":"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.","modified":"2026-08-18T03:56:46.532199065Z","published":"2026-08-15T05:58:14.165Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74316.json"},"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"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"1e33e1414bec54a4feafa9e67e2617031be0afe2"},{"fixed":"7ed62f7040ee182cf7dea5798f9e114235b31dae"},{"fixed":"da6f86ff4f2dd490bea52419a49e19680efd5847"},{"fixed":"8024028ef91616cf91cc669f2446a0406bc0ba19"},{"fixed":"86b9898920a6d02b4149f4fef9efd77b8aa3b9ca"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74316.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.9.0"},{"fixed":"6.12.97"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.40"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.1.5"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74316.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}