PT-2025-25966 · Linux+2 · Linux Kernel+2

Published 2022-08-17 · Updated 2025-11-13 · CVE-2022-50040

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 A buffer overflow issue has been identified in the Linux kernel, specifically in the sja1105 setup devlink regions() function. This occurs when an error happens in dsa devlink region create(), causing the priv->regions array to be accessed with a negative index of -1. The issue was discovered by the Linux Verification Center.

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

Exploit

Memory Corruption

Buffer Overflow

Weakness Enumeration

CWE-787

CWE-119

CWE-120

Related Identifiers

BDU:2026-02663

CVE-2022-50040

SUSE-SU-2025:02264-1

SUSE-SU-2025:02321-1

SUSE-SU-2025:02322-1

SUSE-SU-2025:02537-1

SUSE-SU-2025:2264-1

SUSE-SU-2025_02264-1

SUSE-SU-2025_02537-1

Affected Products

Astra Linux

Linux Kernel

Suse

References · 593

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50040.json · Exploit
• https://security-tracker.debian.org/tracker/CVE-2022-50040 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:02537-1 · Vendor Advisory
• https://git.kernel.org/stable/c/fd8e899cdb5ecaf8e8ee73854a99e10807eef1de · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-50040 · Vendor Advisory
• https://git.kernel.org/stable/c/7983e1e44cb322eba6af84160b6d18df80603fb8 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:02264-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-50040 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:02321-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-50040 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-02663 · Security Note
• https://git.kernel.org/stable/c/e84c6321f3578c38cb3c24258db91a92672b17a8 · Patch
• https://git.kernel.org/stable/c/79f86b862416126a2e826cb74224180d6625a32f · Patch
• https://ubuntu.com/security/CVE-2022-50040 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-50040 · Security Note