Bug 2507087 (CVE-2026-64488)

Summary:	CVE-2026-64488 kernel: ALSA: aoa: check snd_ctl_new1() return value
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 Advanced Linux Sound Architecture (ALSA) 'aoa' component. This vulnerability arises when a specific function, `snd_ctl_new1()`, fails to allocate memory and returns an invalid pointer. The kernel then attempts to use this invalid pointer, which can cause the system to crash. This could allow a local attacker to trigger a Denial of Service (DoS) condition, making the system unavailable.	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 2026-07-25 10:04:19 UTC

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

ALSA: aoa: check snd_ctl_new1() return value

snd_ctl_new1() can return NULL when memory allocation fails. In
layout.c, the function does not check the return value before
dereferencing ctl->id.name or passing to aoa_snd_ctl_add(), which can
lead to a NULL pointer dereference.

Add NULL checks after snd_ctl_new1() calls and return early if any
fails.

Comment 1 TEJ RATHI 2026-07-30 03:43:36 UTC

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026072549-CVE-2026-64488-26ce@gregkh/T