Linux Kernel up to 6.0.6 ALSA snd_ac97_dev_register memory leak

CVSS Meta Temp Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 6.0.6 and classified as critical. Affected is the function snd_ac97_dev_register of the component ALSA. Executing a manipulation can lead to memory leak. This vulnerability is tracked as CVE-2022-50427. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Linux Kernel up to 6.0.6. This vulnerability affects the function snd_ac97_dev_register of the component ALSA. The manipulation with an unknown input leads to a memory leak vulnerability. The CWE definition for the vulnerability is CWE-401. The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory. As an impact it is known to affect availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: ALSA: ac97: fix possible memory leak in snd_ac97_dev_register() If device_register() fails in snd_ac97_dev_register(), it should call put_device() to give up reference, or the name allocated in dev_set_name() is leaked.

The advisory is shared for download at git.kernel.org. This vulnerability was named CVE-2022-50427 since 09/17/2025. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 269635 (Linux Distros Unpatched Vulnerability : CVE-2022-50427), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.9.332, 4.14.298, 4.19.264, 5.4.223, 5.10.153, 5.15.77 or 6.0.7 eliminates this vulnerability. Applying the patch a602ec9d88f177dba78bc97fb1adecc7a71ff279/0f8e9a15c8ecf95057061d370a2dddaf1cee4aeb/ee8bf0946f62ef00e5db4b613a9f664ac567259a/758dbcc6fbf2286eff02743b093c70a18a407d66/bfce73088682ef0770da951f51156c36a89be490/4fdf6f978c6b605ca0d67bf0e982b7a8fc0f4aab/c68b2e9ef246117f696e360bbdd2f5736b3a7127/4881bda5ea05c8c240fc8afeaa928e2bc43f61fa is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (269635) and CERT Bund (WID-SEC-2025-2187). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • SUSE Linux
  • Oracle Linux
  • Open Source Linux Kernel
  • Dell Secure Connect Gateway

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.7
VulDB Temp Score: 5.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Memory leak
CWE: CWE-401 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 269635
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2022-50427

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 4.9.332/4.14.298/4.19.264/5.4.223/5.10.153/5.15.77/6.0.7
Patch: a602ec9d88f177dba78bc97fb1adecc7a71ff279/0f8e9a15c8ecf95057061d370a2dddaf1cee4aeb/ee8bf0946f62ef00e5db4b613a9f664ac567259a/758dbcc6fbf2286eff02743b093c70a18a407d66/bfce73088682ef0770da951f51156c36a89be490/4fdf6f978c6b605ca0d67bf0e982b7a8fc0f4aab/c68b2e9ef246117f696e360bbdd2f5736b3a7127/4881bda5ea05c8c240fc8afeaa928e2bc43f61fa

Timelineinfo

09/17/2025 CVE reserved
10/01/2025 +14 days Advisory disclosed
10/01/2025 +0 days VulDB entry created
01/20/2026 +111 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2022-50427 (🔒)
GCVE (CVE): GCVE-0-2022-50427
GCVE (VulDB): GCVE-100-326512
CERT Bund: WID-SEC-2025-2187 - Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service

Entryinfo

Created: 10/01/2025 14:23
Updated: 01/20/2026 17:56
Changes: 10/01/2025 14:23 (59), 10/12/2025 00:10 (2), 10/24/2025 11:15 (7), 11/19/2025 16:36 (2), 01/20/2026 17:56 (10)
Complete: 🔍
Cache ID: 216::103

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