VYPR
Unrated severityNVD Advisory· Published Oct 7, 2025

ALSA: ac97: Fix possible NULL dereference in snd_ac97_mixer

CVE-2023-53648

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.

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Affected products

167

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Vulnerability mechanics

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