Bug 2535123 (CVE-2026-89897) - CVE-2026-89897 kernel: media: cec: Serialize exclusive follower delivery
Summary: CVE-2026-89897 kernel: media: cec: Serialize exclusive follower delivery
Keywords:
Status: NEW
Alias: CVE-2026-89897
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-16 10:52 UTC by OSIDB Bzimport
Modified: 2026-10-24 03:50 UTC (History)
17 users (show)

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2026-09-16 10:52:41 UTC 
In the Linux kernel, the following vulnerability has been resolved:

media: cec: Serialize exclusive follower delivery

cec_receive_notify() reads the exclusive follower pointer without the
adapter lock. Serialize the no-follower check and message delivery
against mode changes and release.
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