CVE-2023-53648
Published: October 8, 2025Last modified: October 8, 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.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.5 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Fixed (6.1.42-r0) |
| 25 LTS | linux-lts | Not affected (6.6.89-r0) | |
| Stream | linux-lts | Fixed (6.6.58-r0) |
References
- https://git.kernel.org/stable/c/09baf460dfba79ee6a0c72e68ccdbbba84d894df
- https://git.kernel.org/stable/c/228da1fa124470606ac19783e551f9d51a1e01b0
- https://git.kernel.org/stable/c/300e26e3e64880de5013eac8831cf44387ef752c
- https://git.kernel.org/stable/c/5f13d67027fa782096e6aee0db5dce61c4aeb613
- https://git.kernel.org/stable/c/79597c8bf64ca99eab385115743131d260339da5
- https://git.kernel.org/stable/c/809af7bb4219bdeef0dbb8b2ed700d6516d13fe9
- https://git.kernel.org/stable/c/d28b83252e150155b8b8c65b612c555e93c8b45f
- https://git.kernel.org/stable/c/e4cccff1e7ab6ea30995b6fbbb007d02647e025c
- https://git.kernel.org/stable/c/f923a582217b198b557756809ffe42ac0fad6adb