Bug 2535265 (CVE-2026-89970) - CVE-2026-89970 kernel: nvmet-auth: Synchronize timeout work during SQ teardown
Summary: CVE-2026-89970 kernel: nvmet-auth: Synchronize timeout work during SQ teardown
Keywords:
Status: NEW
Alias: CVE-2026-89970
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-16 11:41 UTC by OSIDB Bzimport
Modified: 2026-10-12 23:06 UTC (History)
17 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:


Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2026:81406 0 None None None 2026-10-12 18:51:16 UTC
Red Hat Product Errata RHSA-2026:81552 0 None None None 2026-10-12 23:06:52 UTC

Description OSIDB Bzimport 2026-09-16 11:41:52 UTC
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.

Comment 4 Jon Orris 2026-10-12 18:51:14 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:81406 https://access.redhat.com/errata/RHSA-2026:81406

Comment 5 Jon Orris 2026-10-12 23:06:49 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:81552 https://access.redhat.com/errata/RHSA-2026:81552


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