CVE-2026-89970nvmet-auth: Synchronize timeout work during SQ teardown
- 9.8CriticalCVSS base score
- 0.80%Exploitation in 30 daysEPSS · top 43% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: nvmet-auth: Synchronize timeout work during SQ teardown nvmet_auth_sq_free() cancels auth_expired_work with cancel_delayed_work(). If the work has already started, cancellation does not wait for the callback. Transport teardown can consequently free or reuse the queue containing struct nvmet_sq while nvmet_auth_expired_work() still accesses that SQ. Add a teardown-specific helper that synchronously drains the delayed work before freeing authentication state, and use it from nvmet_sq_destroy(). Keep the non-synchronous helper for in-band authentication state cleanup, where the SQ owner remains alive.
Timeline
ID reserved
By Linux
- 5 days later
· 5 days later
Published
- 33 days later
· 33 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Received | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.80% · top 43% of all CVEs (14 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Affected products
- affected 1a70200f404ae210b4f0334e3936e84f8edb6bc8 – < 664022fa1c93f4eba09ef5ee02411b9709dd7a93
- affected 1a70200f404ae210b4f0334e3936e84f8edb6bc8 – < c3c126a6142a1335bc8c34a5607c39cf01daf295
- affected 1a70200f404ae210b4f0334e3936e84f8edb6bc8 – < c17c87bde6d6f5252a6a6f0a94b2430164aa28d5
- affected 1a70200f404ae210b4f0334e3936e84f8edb6bc8 – < 7555ddd60af72df2862dd8f9b730a9848577edda
- affected 1a70200f404ae210b4f0334e3936e84f8edb6bc8 – < eb4f9127a2b8a152743f1ee597627e2f69cb54fe
- affected 1a70200f404ae210b4f0334e3936e84f8edb6bc8 – < eaa948c0e19b1bb2d93262207bca0c3d19cc3406
- affected 6.0
- unaffected < 6.0
- unaffected 6.1.188 – ≤ 6.1.*
- unaffected 6.6.157 – ≤ 6.6.*
- unaffected 6.12.110 – ≤ 6.12.*
- unaffected 6.18.51 – ≤ 6.18.*
- unaffected 7.2.5 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References6
- https://git.kernel.org/stable/c/664022fa1c93f4eba09ef5ee02411b9709dd7a93 (opens in a new tab)
- https://git.kernel.org/stable/c/c3c126a6142a1335bc8c34a5607c39cf01daf295 (opens in a new tab)
- https://git.kernel.org/stable/c/c17c87bde6d6f5252a6a6f0a94b2430164aa28d5 (opens in a new tab)
- https://git.kernel.org/stable/c/7555ddd60af72df2862dd8f9b730a9848577edda (opens in a new tab)
- https://git.kernel.org/stable/c/eb4f9127a2b8a152743f1ee597627e2f69cb54fe (opens in a new tab)
- https://git.kernel.org/stable/c/eaa948c0e19b1bb2d93262207bca0c3d19cc3406 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-80570 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-89970)Record last updated .