Bug 2555105 (CVE-2026-98671)

Summary:	CVE-2026-98671 kernel: iio: adc: sun4i-gpadc-iio: clean up on thermal zone registration failure
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 sun4i-gpadc-iio driver within the Linux kernel. When device initialization fails during thermal zone registration, the driver returns without unregistering the Industrial I/O (IIO) map or disabling runtime power management. A local user could trigger this failure path to cause a resource leak, potentially leading to system instability and 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 2026-10-18 15:54:42 UTC

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

iio: adc: sun4i-gpadc-iio: clean up on thermal zone registration failure

If devm_thermal_of_zone_register() fails, probe returns without
unregistering the IIO map array or disabling runtime PM.

Jump to err_map to release them.

Comment 1 Mauro Matteo Cascella 2026-10-21 23:33:57 UTC

Upstream advisory:
https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98671.mbox