Bug 2562741 (CVE-2026-99162)

Summary:	CVE-2026-99162 kernel: kernel: Denial of Service via use-after-free in GPIO subsystem
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
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
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Fixed In Version:		Doc Type:	---
Doc Text:	A flaw was found in the Linux kernel's General Purpose Input/Output (GPIO) subsystem. A use-after-free vulnerability occurs when adding shared proxies because a lookup table can outlive the device object whose name string is referenced. A local attacker could exploit this flaw to cause memory corruption, leading to a system crash and Denial of Service (DoS).	Story Points:	---
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2026-10-28 11:00:52 UTC

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

gpio: shared: fix use-after-free bug when adding shared proxies

The GPIO lookup table can stay alive for longer than the kobject whose
name string's address we're assigning to lookup->dev_id. Fix a potential
UAF by duplicating the string.