Bug 2477060 (CVE-2026-43478)

Summary:	CVE-2026-43478 kernel: ASoC: codecs: rt1011: Use component to get the dapm context in spk_mode_put
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
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 rt1011 codec component. An incorrect helper function used to retrieve the Digital Audio Power Management (DAPM) context in `rt1011_recv_spk_mode_put()` can lead to a null pointer dereference. This issue could allow a local attacker to cause a system crash, resulting in 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 2026-05-13 16:02:00 UTC

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

ASoC: codecs: rt1011: Use component to get the dapm context in spk_mode_put

The correct helper to use in rt1011_recv_spk_mode_put() to retrieve the
DAPM context is snd_soc_component_to_dapm(), from kcontrol we will
receive NULL pointer.

Comment 1 Vipul Nair 2026-05-13 16:53:29 UTC

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026051347-CVE-2026-43478-5dc8@gregkh/T