Bug 2468238 (CVE-2026-43355)

Summary:	CVE-2026-43355 kernel: iio: light: bh1780: fix PM runtime leak on error path
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
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 Linux kernel's bh1780 light sensor driver. This vulnerability occurs due to a Power Management (PM) runtime leak, where the system's reference count for power management is not always properly decremented. An attacker could exploit this by repeatedly triggering the error path, leading to resource exhaustion. This can result in a Denial of Service (DoS), making the system unresponsive or unstable.	Story Points:	---
Clone Of:		Environment:
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Regression:	---	Mount Type:	---
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Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2026-05-08 15:06:25 UTC

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

iio: light: bh1780: fix PM runtime leak on error path

Move pm_runtime_put_autosuspend() before the error check to ensure
the PM runtime reference count is always decremented after
pm_runtime_get_sync(), regardless of whether the read operation
succeeds or fails.

Comment 1 Keith Grant 2026-05-08 20:06:44 UTC

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026050824-CVE-2026-43355-db72@gregkh/T