Bug 2559595 (CVE-2026-98915)

Summary:	CVE-2026-98915 kernel: media: video-i2c: use vb2_video_unregister_device on driver removal
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
Status:	NEW ---	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	akhatavk, aos-team-art-private, asdas, dpaolell, jdelft, jupierce, lgarciaa, mbiarnes, ppalepu, ppostler, prdhamdh, rhel-process-autobot, sghai, sidsharm, suppawar, vlaad, watson-tool-maintainers
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	---
Doc Text:	A flaw was found in the Linux kernel's video-i2c driver. This vulnerability can lead to a denial of service (DoS) caused by memory corruption during driver unloading. The driver unregisters the video device without properly disconnecting the video buffer queue. A local user with administrative privileges could exploit this flaw during driver removal to crash the system.	Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2026-10-23 12:22:41 UTC

In the Linux kernel, the following vulnerability has been resolved:

media: video-i2c: use vb2_video_unregister_device on driver removal

The driver uses vb2_fop_release() as its file release operation, so
vb2_video_unregister_device() should be used instead of
video_unregister_device() during driver removal.

This ensures that the vb2 queue is properly disconnected before the
video device is unregistered.

Comment 1 Mauro Matteo Cascella 2026-10-27 10:09:16 UTC

Upstream advisory:
https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98915.mbox