PT-2025-37582 · Linux+2 · Linux Kernel+2

Published 2022-12-21 · Updated 2026-01-05 · CVE-2022-50280

Positive Technologies (AI Summary)

CVSS v2.0

6.0

Medium

Base vector

AV:L/AC:H/Au:S/C:C/I:C/A:C

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

Description The propagate mnt() function in the Linux kernel contains a flaw where it fails to properly terminate when looking up copies of a source mount, leading to a NULL dereference. This issue occurs when handling mount propagation and can be triggered by unprivileged user namespaces. The vulnerability is related to the handling of peer groups, master mounts, and slave mounts during mount propagation, potentially causing issues with shared mounts and propagation trees.

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

Exploit

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

BDU:2026-06075

CVE-2022-50280

SUSE-SU-2025:4189-1

SUSE-SU-2025:4506-1

SUSE-SU-2025:4530-1

SUSE-SU-2026:0029-1

SUSE-SU-2026:0032-1

SUSE-SU-2026:0033-1

SUSE-SU-2026:0034-1

Affected Products

Astra Linux

Linux Kernel

Suse

References · 351

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50280.json · Exploit
• https://git.kernel.org/stable/c/cad0d17fb2b0540180ab59e2cd48ad348cc1ee4c · Patch
• https://git.kernel.org/stable/c/2dae4211b579ce98985876a73a78466e285238ff · Patch
• https://git.kernel.org/stable/c/c24cc476acd8bccb5af54849aac5e779d8223bf5 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2026:0034-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0032-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0029-1 · Vendor Advisory
• https://git.kernel.org/stable/c/7f57df69de7f05302fad584eb8e3f34de39e0311 · Patch
• https://git.kernel.org/stable/c/b591b2919d018ef91b4a9571edca94105bcad3df · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:4530-1 · Vendor Advisory
• https://git.kernel.org/stable/c/784a4f995ee24460aa72e00b085612fad57ebce5 · Patch
• https://git.kernel.org/stable/c/cc997490be65da0af8c75a6244fc80bb66c53ce0 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:4506-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2022-50280 · Security Note
• https://git.kernel.org/stable/c/e7c9f10c44a8919cd8bbd51b228c84d0caf7d518 · Patch