Bug 2513259 (CVE-2026-68224)

Summary:	CVE-2026-68224 kernel: media: mali-c55: Fix possible ERR_PTR in enable_streams
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
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 mali-c55 driver. This vulnerability occurs because the `media_pad_remote_pad_unique()` function's error return value (an ERR_PTR) was not properly checked before being dereferenced in the `enable_streams` function. A local attacker could exploit this oversight, potentially leading to a system crash and causing a Denial of Service (DoS).	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 2026-08-10 12:27:37 UTC

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

media: mali-c55: Fix possible ERR_PTR in enable_streams

The media_pad_remote_pad_unique() function returns either a valid
pointer or an ERR_PTR() on failure (-ENOTUNIQ if multiple links are
enabled, -ENOLINK if no connected pad is found). The return value
was assigned directly to isp->remote_src and dereferenced in the
next line without checking for errors, which could lead to an
ERR_PTR dereference.

Add proper error checking with IS_ERR() before dereferencing the
pointer. Also set isp->remote_src to NULL on error to maintain
consistency with other error paths in the function.