Bug 2486478 (CVE-2026-46286)

Summary:	CVE-2026-46286 kernel: leds: qcom-lpg: Check for array overflow when selecting the high resolution
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	unspecified	CC:	kinaduarte, 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 qcom-lpg LED driver. This vulnerability, an array overflow, occurs when the driver attempts to select high-resolution values. Due to incorrect indexing, the system may read random data from memory, which could lead to information disclosure or unpredictable system behavior. This issue arises because a 3-bit register is used to index an array that only contains 5 values, allowing out-of-bounds reads.	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 2026-06-08 17:04:10 UTC

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

leds: qcom-lpg: Check for array overflow when selecting the high resolution

When selecting the high resolution values from the array, FIELD_GET() is
used to pull from a 3 bit register, yet the array being indexed has only
5 values in it.  Odds are the hardware is sane, but just to be safe,
properly check before just overflowing and reading random data and then
setting up chip values based on that.

Comment 1 Keith Grant 2026-06-08 19:39:45 UTC

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026060843-CVE-2026-46286-b3d1@gregkh/T

Comment 2 imaginarydeft 2026-06-22 09:53:46 UTC

It's great to hear Keith Grant's insights on Upstream Advisory:
https://lore.kernel.org/linux-cve-announce/2026060843-CVE-2026-46286-b3d1@gregkh/T 
https://scratchgamesonline.io
His sharing and topics truly offer fresh and impressive experiences.