PT-2025-40116 · Linux+4 · Linux Kernel+4

Published 2022-10-27 · Updated 2025-10-23 · CVE-2022-50431

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A memory leak was identified in the i2sbus add dev() function within the ALSA subsystem related to the AOA (Accessories Over Audio) driver. The dev set name() function in soundbus add one() allocates memory for a name, which was not being freed when of device register() failed. This issue is addressed by calling soundbus dev put() to release the reference, allowing the memory to be freed during kobject cleanup when the reference count reaches zero. Resources are also freed in i2sbus release dev(), enabling a direct return of 0.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Memory Leak

Weakness Enumeration

CWE-401

Related Identifiers

ALSA-2025_16880

BDU:2026-04055

CESA-2023_2951

CVE-2022-50431

RHSA-2023:2458

RHSA-2023:2951

RHSA-2023_2458

RHSA-2023_2951

SUSE-SU-2025:03613-1

SUSE-SU-2025:03615-1

SUSE-SU-2025:03626-1

SUSE-SU-2025:03628-1

SUSE-SU-2025:3716-1

SUSE-SU-2025:3761-1

Affected Products

Astra Linux

Centos

Linux Kernel

Red Hat

Suse

References · 890

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50431.json · Exploit
• https://git.kernel.org/stable/c/fd410d24665e4efb3c1796797181265efe553e9c · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:03613-1 · Vendor Advisory
• https://git.kernel.org/stable/c/5bdea674534153110b90d70b02f2fbaf48b2c0eb · Patch
• https://git.kernel.org/stable/c/e81d7826b8f40430a1ea1b330e24d9a9eb4512c4 · Patch
• https://git.kernel.org/stable/c/027fee10e3a400cf6f3237374a1248da1082807b · Patch
• https://security-tracker.debian.org/tracker/CVE-2022-50431 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-50431 · Security Note
• https://osv.dev/vulnerability/CVE-2022-50431 · Vendor Advisory
• https://git.kernel.org/stable/c/ce6fd1c382a38b75557db85a2fe99d285540a03d · Patch
• https://git.kernel.org/stable/c/c7524279c8ddc7dbf3463bec70e0289097959944 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:03615-1 · Vendor Advisory
• https://git.kernel.org/stable/c/4a4c8482e370d697738a78dcd7bf2780832cb712 · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-50431 · Vendor Advisory
• https://git.kernel.org/stable/c/802532a50acf501fdafe38a84ca2aa886d68af68 · Patch