{"id":"CVE-2026-89970","summary":"nvmet-auth: Synchronize timeout work during SQ teardown","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nnvmet-auth: Synchronize timeout work during SQ teardown\n\nnvmet_auth_sq_free() cancels auth_expired_work with\ncancel_delayed_work(). If the work has already started, cancellation does\nnot wait for the callback. Transport teardown can consequently free or\nreuse the queue containing struct nvmet_sq while\nnvmet_auth_expired_work() still accesses that SQ.\n\nAdd a teardown-specific helper that synchronously drains the delayed work\nbefore freeing authentication state, and use it from nvmet_sq_destroy().\nKeep the non-synchronous helper for in-band authentication state cleanup,\nwhere the SQ owner remains alive.","modified":"2026-09-18T03:48:34.515319179Z","published":"2026-09-16T10:32:50.306Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89970.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/664022fa1c93f4eba09ef5ee02411b9709dd7a93"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7555ddd60af72df2862dd8f9b730a9848577edda"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c17c87bde6d6f5252a6a6f0a94b2430164aa28d5"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c3c126a6142a1335bc8c34a5607c39cf01daf295"},{"type":"WEB","url":"https://git.kernel.org/stable/c/eaa948c0e19b1bb2d93262207bca0c3d19cc3406"},{"type":"WEB","url":"https://git.kernel.org/stable/c/eb4f9127a2b8a152743f1ee597627e2f69cb54fe"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89970.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89970"},{"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":"1a70200f404ae210b4f0334e3936e84f8edb6bc8"},{"fixed":"664022fa1c93f4eba09ef5ee02411b9709dd7a93"},{"fixed":"c3c126a6142a1335bc8c34a5607c39cf01daf295"},{"fixed":"c17c87bde6d6f5252a6a6f0a94b2430164aa28d5"},{"fixed":"7555ddd60af72df2862dd8f9b730a9848577edda"},{"fixed":"eb4f9127a2b8a152743f1ee597627e2f69cb54fe"},{"fixed":"eaa948c0e19b1bb2d93262207bca0c3d19cc3406"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89970.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.0.0"},{"fixed":"6.1.188"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.157"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.110"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.51"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.5"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89970.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:H/I:H/A:H"}]}