CVE-2023-53648

MEDIUM

Linux Kernel - Null Dereference

Title source: llm

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.

References (9)

[Patch] https://git.kernel.org/stable/c/09baf460dfba79ee6a0c72e68ccdbbba84d894df

[Patch] https://git.kernel.org/stable/c/228da1fa124470606ac19783e551f9d51a1e01b0

[Patch] https://git.kernel.org/stable/c/300e26e3e64880de5013eac8831cf44387ef752c

[Patch] https://git.kernel.org/stable/c/5f13d67027fa782096e6aee0db5dce61c4aeb613

[Patch] https://git.kernel.org/stable/c/79597c8bf64ca99eab385115743131d260339da5

[Patch] https://git.kernel.org/stable/c/809af7bb4219bdeef0dbb8b2ed700d6516d13fe9

[Patch] https://git.kernel.org/stable/c/d28b83252e150155b8b8c65b612c555e93c8b45f

[Patch] https://git.kernel.org/stable/c/e4cccff1e7ab6ea30995b6fbbb007d02647e025c

[Patch] https://git.kernel.org/stable/c/f923a582217b198b557756809ffe42ac0fad6adb

Scores

CVSS v3 5.5

EPSS 0.0002

EPSS Percentile 5.2%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Classification

CWE

CWE-476

Status published

Affected Products (9)

linux/linux_kernel < 4.14.322

linux/Kernel < 4.14.322linux

linux/Kernel < 4.19.291linux

linux/Kernel < 5.4.251linux

linux/Kernel < 5.10.188linux

linux/Kernel < 5.15.121linux

linux/Kernel < 6.1.39linux

linux/Kernel < 6.3.13linux

linux/Kernel < 6.4.4linux

Timeline

Published Oct 07, 2025

Tracked Since Feb 18, 2026