2402287 – (CVE-2023-53648) CVE-2023-53648 kernel: ALSA: ac97: Fix possible NULL dereference in snd_ac97_mixer

Bug 2402287 (CVE-2023-53648) - CVE-2023-53648 kernel: ALSA: ac97: Fix possible NULL dereference in snd_ac97_mixer

Summary: CVE-2023-53648 kernel: ALSA: ac97: Fix possible NULL dereference in snd_ac97_...

Keywords:
Status:	NEW
Alias:	CVE-2023-53648
Product:	Security Response
Classification:	Other
Component:	vulnerability
Sub Component:
Version:	unspecified
Hardware:	All
OS:	Linux
Priority:	low
Severity:	low
Target Milestone:	---
Assignee:	Product Security DevOps Team
QA Contact:
Docs Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+	depends on / blocked

Reported:	2025-10-07 16:07 UTC by OSIDB Bzimport
Modified:	2026-06-29 18:00 UTC (History)
CC List:	2 users (show)
Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments	(Terms of Use)

Description OSIDB Bzimport 2025-10-07 16:07:30 UTC

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

ALSA: ac97: Fix possible NULL dereference in snd_ac97_mixer

smatch error:
sound/pci/ac97/ac97_codec.c:2354 snd_ac97_mixer() error:
we previously assumed 'rac97' could be null (see line 2072)

remove redundant assignment, return error if rac97 is NULL.

Comment 1 Jon Moroney 2025-10-07 19:49:38 UTC Comment hidden (spam)

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