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
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-10-07 16:07 UTC by OSIDB Bzimport
Modified: 2025-10-07 19:53 UTC (History)
0 users

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 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025100718-CVE-2023-53648-3c04@gregkh/T
Note You need to log in before you can comment on or make changes to this bug.