Bug 2524498 (CVE-2026-80526)

Summary:	CVE-2026-80526 kernel: ASoC: tas2562: Validate values for volume writes
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability-draft	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
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 ASoC (Audio System on Chip) tas2562 driver. The `tas2562_volume_control_put()` function lacks proper validation of control values provided by userspace. A local attacker could exploit this by supplying a specially crafted value, leading to an array overflow and an uncontrolled write to the device. This could result in privilege escalation or a denial of service.	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 2026-08-26 15:02:01 UTC

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

ASoC: tas2562: Validate values for volume writes

tas2562_volume_control_put() does not do any validation of the control
value written by userspace, it uses it to look up a value in a fixed
size array which can easily be overflowed and then writes whatever value
it gets back to the device.  Add validation that we are loading a value
we have in the array.

Comment 1 gkamathe 2026-08-27 13:16:00 UTC

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026082602-CVE-2026-80526-fb32@gregkh/T