Bug 2422779 (CVE-2025-68281)

Summary:	CVE-2025-68281 kernel: Linux kernel: Denial of Service in ASoC SDCA due to incorrect memory allocation
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	Keywords:	Security
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Hardware:	All
OS:	Linux
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Doc Text:	A flaw was found in the Linux kernel's Advanced Linux Sound Architecture (ASoC) SoundWire Digital Control Adapter (SDCA) component. A local user with low privileges could exploit this vulnerability due to incorrect memory allocation when parsing 'mipi-sdca-control-cn-list' within the 'sdca_parse_function' API. This flaw causes a system crash, leading to a Denial of Service (DoS).	Story Points:	---
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2025-12-16 15:04:19 UTC

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

ASoC: SDCA: bug fix while parsing mipi-sdca-control-cn-list

"struct sdca_control" declares "values" field as integer array.
But the memory allocated to it is of char array. This causes
crash for sdca_parse_function API. This patch addresses the
issue by allocating correct data size.

Comment 1 Alexander B 2025-12-16 20:25:58 UTC

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025121640-CVE-2025-68281-4fa1@gregkh/T