vulnerability
Red Hat: CVE-2023-53648: kernel: ALSA: ac97: Fix possible NULL dereference in snd_ac97_mixer (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:L/AC:M/Au:S/C:N/I:N/A:C) | Oct 7, 2025 | Nov 14, 2025 | Feb 5, 2026 |
Severity
4
CVSS
(AV:L/AC:M/Au:S/C:N/I:N/A:C)
Published
Oct 7, 2025
Added
Nov 14, 2025
Modified
Feb 5, 2026
Description
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.
Solution
redhat-upgrade-kernel
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