CVE-2023-53648

ALSA: ac97: Fix possible NULL dereference in snd_ac97_mixer

published October 7, 2025

CVSS
—
EPSS
0%
Percentile
10.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.00208 · 10.4th percentile
Published
2025-10-07T15:19Z
EPSS history
Timeline
  • 07 OCT 15:19Z
    ALSA: ac97: Fix possible NULL dereference in snd_ac97_mixer
    cvelistv5