Bug 2467183 (CVE-2026-43218)

Summary:	CVE-2026-43218 kernel: media: i2c/tw9903: Fix potential memory leak in tw9903_probe()
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	unspecified	CC:	rhel-process-autobot, 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 tw9903 driver within the Linux kernel. This vulnerability occurs in an error handling path of the tw9903_probe() function, where memory allocated for video for Linux 2 (V4L2) control handlers is not properly released. This oversight can lead to a memory leak, potentially causing resource exhaustion and a Denial of Service (DoS) condition on the affected system.	Story Points:	---
Clone Of:		Environment:
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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 2026-05-06 13:09:19 UTC

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

media: i2c/tw9903: Fix potential memory leak in tw9903_probe()

In one of the error paths in tw9903_probe(), the memory allocated in
v4l2_ctrl_handler_init() and v4l2_ctrl_new_std() is not freed. Fix that
by calling v4l2_ctrl_handler_free() on the handler in that error path.

Comment 1 Keith Grant 2026-05-06 21:58:16 UTC

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026050652-CVE-2026-43218-c10e@gregkh/T