PT-2025-37500 · Linux+4 · Linux Kernel+4

Published 2022-11-22 · Updated 2025-11-24 · CVE-2022-50246

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 The Linux kernel contains a node refcount leak in the tcpci register port() function related to fwnode handling within the Type-C TCPCI subsystem. This leak occurs because the node refcount is increased in device get named child node() but not properly decreased when exiting, leading to a memory leak. The issue was identified during device load testing with CONFIG OF UNITTEST and CONFIG OF DYNAMIC enabled.

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

Exploit

Missing Release of Resource after Effective Lifetime

Weakness Enumeration

CWE-772

Related Identifiers

BDU:2026-03737

CESA-2023_7077

CVE-2022-50246

RHSA-2023:6583

RHSA-2023:7077

RHSA-2023_6583

RHSA-2023_7077

SUSE-SU-2025:03615-1

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 · 869

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50246.json · Exploit
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-50246 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2022-50246 · Vendor Advisory
• https://git.kernel.org/stable/c/0384e87e3fec735e47f1c133c796f32ef7a72a9b · Patch
• https://git.kernel.org/stable/c/5f125507d2270035dfcf83fbff6cff5a143e200c · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2022-50246 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:03615-1 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-03737 · Security Note
• https://git.kernel.org/stable/c/4f257e2eba419ab4cd880c822346450e4e7b2af3 · Patch
• https://git.kernel.org/stable/c/d3b6c28a71f111a6c67ddc3238aab95910fd86cf · Patch
• https://git.kernel.org/stable/c/ba75be6f0d9d028d20852564206565a4c03e3288 · Patch
• https://git.kernel.org/stable/c/e75a324409715bd71348f79a49aa61b69dbeb676 · Patch
• https://osv.dev/vulnerability/CVE-2022-50246 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-50246 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-50246 · Vendor Advisory