CVE-2023-53648

ALSA: ac97: Fix possible NULL dereference in snd_ac97_mixer

State: Published
Severity: Not scored
Published: Oct 7, 2025
Updated: May 11, 2026
Reserved: Oct 7, 2025

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	da3cec35dd3c31d8706db4bf379372ce70d92118 to before 809af7bb4219bdeef0dbb8b2ed700d6516d13fe9Affected da3cec35dd3c31d8706db4bf379372ce70d92118 to before e4cccff1e7ab6ea30995b6fbbb007d02647e025cAffected da3cec35dd3c31d8706db4bf379372ce70d92118 to before 5f13d67027fa782096e6aee0db5dce61c4aeb613Affected da3cec35dd3c31d8706db4bf379372ce70d92118 to before f923a582217b198b557756809ffe42ac0fad6adbAffected da3cec35dd3c31d8706db4bf379372ce70d92118 to before 300e26e3e64880de5013eac8831cf44387ef752cAffected da3cec35dd3c31d8706db4bf379372ce70d92118 to before d28b83252e150155b8b8c65b612c555e93c8b45fAffected da3cec35dd3c31d8706db4bf379372ce70d92118 to before 09baf460dfba79ee6a0c72e68ccdbbba84d894dfAffected da3cec35dd3c31d8706db4bf379372ce70d92118 to before 228da1fa124470606ac19783e551f9d51a1e01b0Affected da3cec35dd3c31d8706db4bf379372ce70d92118 to before 79597c8bf64ca99eab385115743131d260339da5Affected
LinuxLinux	2.6.28Affected before 2.6.28Not affected 4.14.322 through 4.14.Not affected 4.19.291 through 4.19.Not affected 5.4.251 through 5.4.Not affected 5.10.188 through 5.10.Not affected 5.15.121 through 5.15.Not affected 6.1.39 through 6.1.Not affected 6.3.13 through 6.3.Not affected 6.4.4 through 6.4.Not affected 6.5 and laterNot affected

Product

Versions

LinuxLinux

da3cec35dd3c31d8706db4bf379372ce70d92118 to before 809af7bb4219bdeef0dbb8b2ed700d6516d13fe9Affected
da3cec35dd3c31d8706db4bf379372ce70d92118 to before e4cccff1e7ab6ea30995b6fbbb007d02647e025cAffected
da3cec35dd3c31d8706db4bf379372ce70d92118 to before 5f13d67027fa782096e6aee0db5dce61c4aeb613Affected
da3cec35dd3c31d8706db4bf379372ce70d92118 to before f923a582217b198b557756809ffe42ac0fad6adbAffected
da3cec35dd3c31d8706db4bf379372ce70d92118 to before 300e26e3e64880de5013eac8831cf44387ef752cAffected
da3cec35dd3c31d8706db4bf379372ce70d92118 to before d28b83252e150155b8b8c65b612c555e93c8b45fAffected
da3cec35dd3c31d8706db4bf379372ce70d92118 to before 09baf460dfba79ee6a0c72e68ccdbbba84d894dfAffected
da3cec35dd3c31d8706db4bf379372ce70d92118 to before 228da1fa124470606ac19783e551f9d51a1e01b0Affected
da3cec35dd3c31d8706db4bf379372ce70d92118 to before 79597c8bf64ca99eab385115743131d260339da5Affected

LinuxLinux

2.6.28Affected
before 2.6.28Not affected
4.14.322 through 4.14.*Not affected
4.19.291 through 4.19.*Not affected
5.4.251 through 5.4.*Not affected
5.10.188 through 5.10.*Not affected
5.15.121 through 5.15.*Not affected
6.1.39 through 6.1.*Not affected
6.3.13 through 6.3.*Not affected
6.4.4 through 6.4.*Not affected
6.5 and laterNot affected

References

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