CVE-2026-89970

Last refreshed2026-10-19

Status: UPDATED | Advisory ID: CVE-2026-89970

Key Details

CVE	CVE-2026-89970
CVSS Score / Version	9.8 (Critical) / CVSS v3.1
Updated	2026-10-19
CVSS Vector	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`
CVSS Prose	attack vector is network; attack complexity is low; privileges required is none; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is high.
Affected products	Linux Kernel

Vendor	Product	Affected Versions	Patch Status
Linux	Linux Kernel

Vendor

Product

Affected Versions

Patch Status

Linux

Linux Kernel

Subsystems	OT Supporting Infrastructure
Sectors	All Sectors

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. (NVD)

Monitor Linux's web page for any future patch releases.

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-89970
CVE	https://www.cve.org/CVERecord?id=CVE-2026-89970

Source

Reference

NVD

CVE