PT-2022-7662 · Linux+5 · Linux Kernel+5

Alexander Sergeyev · Published 2022-01-26 · Updated 2025-09-29 · CVE-2022-48735

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

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

Description The issue is related to the use of memory after it has been freed in the ALSA sound subsystem of the Linux kernel. This is due to a problem with the registration and unregistration of LED class devices created by HD-audio codec drivers. The devres release does not work correctly in this case, leading to a NULL dereference or a use-after-free (UAF) for a stale set brightness delay callback. The estimated number of potentially affected devices worldwide is not available. There is no information about real-world incidents where this issue was exploited.

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

Exploit

DoS

Use After Free

NULL Pointer Dereference

Weakness Enumeration

CWE-416

CWE-476

Related Identifiers

ALSA-2025_16880

BDU:2024-08350

CESA-2022_7683

CVE-2022-48735

OPENSUSE-SU-2024_2372-1

OPENSUSE-SU-2024_2394-1

RHSA-2022:7683

RHSA-2022:8267

RHSA-2022_7683

RHSA-2022_8267

SUSE-SU-2024:2372-1

SUSE-SU-2024:2394-1

SUSE-SU-2024:2902-1

SUSE-SU-2024:2929-1

SUSE-SU-2024:2939-1

Affected Products

Astra Linux

Centos

Linux Kernel

Red Hat

Red Os

Suse

References · 1214

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/48xxx/CVE-2022-48735.json · Exploit
• https://osv.dev/vulnerability/SUSE-SU-2024:2939-1 · Vendor Advisory
• https://git.kernel.org/stable/c/549f8ffc7b2f7561bea7f90930b6c5104318e87b · Patch
• https://git.kernel.org/stable/c/a7de1002135cf94367748ffc695a29812d7633b5 · Patch
• https://cve.org/CVERecord?id=CVE-2022-48735 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2022-48735 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se17-bulletin-2025-0319SE17 · Vendor Advisory
• https://git.kernel.org/stable/c/813e9f3e06d22e29872d4fd51b54992d89cf66c8 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2024:2929-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:2372-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:2902-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-48735 · Vendor Advisory
• https://bdu.fstec.ru/vul/2024-08350 · Security Note
• https://git.kernel.org/stable/c/0e629052f013eeb61494d4df2f1f647c2a9aef47 · Patch
• https://ubuntu.com/security/CVE-2022-48735 · Vendor Advisory