PT-2025-26138 · Linux+3 · Linux Kernel+3

Published 2022-11-15 · Updated 2026-05-26 · CVE-2022-50212

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 vulnerability in the Linux kernel's netfilter nf tables component allows a chain from a different table to be used when doing lookups for chains on the same batch by using its ID. If a rule is added to a table but refers to a chain in a different table, it will be linked to the chain in the other table, but would have expressions referring to objects in the original table. When the original table is removed, the rule will not be removed as it is linked to a chain in the other table. This can lead to a use-after-free when expressions in the rule are processed or removed.

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

Exploit

DoS

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

CVE-2022-50212

RHSA-2022:8267

RHSA-2022_8267

SUSE-SU-2025:02264-1

SUSE-SU-2025:02308-1

SUSE-SU-2025:02320-1

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_02308-1

SUSE-SU-2025_02537-1

Affected Products

Astra Linux

Linux Kernel

Red Hat

Suse

References · 600

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50212.json · Exploit
• https://cve.org/CVERecord?id=CVE-2022-50212 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:02322-1 · Vendor Advisory
• https://git.kernel.org/stable/c/0f49613a213d918af790c1276f79da741968de11 · Patch
• https://git.kernel.org/stable/c/9e7dcb88ec8e85e4a8ad0ea494ea2f90f32d2583 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:02308-1 · Vendor Advisory
• https://git.kernel.org/stable/c/58e863f64ee3d0879297e5e53b646e4b91e59620 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:02264-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:02321-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-50212 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-50212 · Security Note
• https://git.kernel.org/stable/c/95f466d22364a33d183509629d0879885b4f547e · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:02537-1 · Vendor Advisory
• https://osv.dev/vulnerability/ROOT-OS-UBUNTU-2204-CVE-2022-50212 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-50212 · Vendor Advisory