CVE-2023-53648

MEDIUM EPSS 8.8%
Published Oct 7, 20258mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Oct 7, 2025 8mo ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
8.8% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-476 NULL Pointer Dereference Memory Safety

Affected Products 8

VendorProductVersionRange
linuxlinux_kernel*≥2.6.28  –  <4.14.322
linuxlinux_kernel*≥4.15  –  <4.19.291
linuxlinux_kernel*≥4.20  –  <5.4.251
linuxlinux_kernel*≥5.5  –  <5.10.188
linuxlinux_kernel*≥5.11  –  <5.15.121
linuxlinux_kernel*≥5.16  –  <6.1.39
linuxlinux_kernel*≥6.2  –  <6.3.13
linuxlinux_kernel*≥6.4  –  <6.4.4

References 9

  • git.kernel.org https://git.kernel.org/stable/c/09baf460dfba79ee6a0c72e68ccdbbba84d894df
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/228da1fa124470606ac19783e551f9d51a1e01b0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/300e26e3e64880de5013eac8831cf44387ef752c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5f13d67027fa782096e6aee0db5dce61c4aeb613
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/79597c8bf64ca99eab385115743131d260339da5
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/809af7bb4219bdeef0dbb8b2ed700d6516d13fe9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d28b83252e150155b8b8c65b612c555e93c8b45f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e4cccff1e7ab6ea30995b6fbbb007d02647e025c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f923a582217b198b557756809ffe42ac0fad6adb
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/09baf460dfba79ee6a0c72e68ccdbbba84d894df
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/228da1fa124470606ac19783e551f9d51a1e01b0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/300e26e3e64880de5013eac8831cf44387ef752c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5f13d67027fa782096e6aee0db5dce61c4aeb613
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/79597c8bf64ca99eab385115743131d260339da5
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/809af7bb4219bdeef0dbb8b2ed700d6516d13fe9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d28b83252e150155b8b8c65b612c555e93c8b45f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e4cccff1e7ab6ea30995b6fbbb007d02647e025c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f923a582217b198b557756809ffe42ac0fad6adb
    Patch