Bug 2536362 (CVE-2026-90406)

Summary:	CVE-2026-90406 kernel: media: qcom: iris: handle runtime PM resume failure in core deinit
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 `media: qcom: iris` driver. This vulnerability occurs when the `iris_core_deinit()` function fails to properly handle a runtime Power Management (PM) resume failure. An attacker could potentially exploit this by triggering a scenario where the `pm_runtime_resume_and_get()` function fails, leading to unbalanced runtime PM references and skipped hardware power-off operations. This could result in resource exhaustion or system instability, potentially 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 2026-09-17 17:33:35 UTC

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

media: qcom: iris: handle runtime PM resume failure in core deinit

Check the return value of pm_runtime_resume_and_get() in
iris_core_deinit().

If runtime PM resume fails, skip hardware power-off operations but
still perform software teardown and state transition. Also skip the
corresponding pm_runtime_put_sync() call to avoid unbalanced runtime
PM references.

Comment 1 gkamathe 2026-09-21 10:33:44 UTC

Upstream advisory:
https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-90406.mbox