PT-2025-25974 · Linux+3 · Linux Kernel+3

Published 2022-08-09 · Updated 2025-06-18 · CVE-2022-50048

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 A possible module reference underflow in the error path of the netfilter nf tables component has been identified. This issue occurs when nft expr clone() fails, and dst->ops is set, but the module reference count has not been incremented, leading to a module reference underflow when nft expr destroy() is called.

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

Exploit

Weakness Enumeration

CWE-664

CWE-911

Related Identifiers

BDU:2026-03479

CESA-2023_2951

CVE-2022-50048

RHSA-2022:8267

RHSA-2022_8267

RHSA-2023:2951

RHSA-2023_2951

RHSA-2024:3421

Affected Products

Astra Linux

Centos

Linux Kernel

Red Hat

References · 19

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50048.json · Exploit
• https://git.kernel.org/stable/c/1e52e6cfec6342c3d0df47dc3a76724fb3dabf56 · Patch
• https://cve.org/CVERecord?id=CVE-2022-50048 · Security Note
• https://ubuntu.com/security/CVE-2022-50048 · Vendor Advisory
• https://git.kernel.org/stable/c/c485c35ff6783ccd12c160fcac6a0e504e83e0bf · Patch
• https://bdu.fstec.ru/vul/2026-03479 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-50048 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-50048 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2022-50048 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-50048 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-50048 · Vendor Advisory
• https://git.kernel.org/stable/c/b59bee8b05b0e789b5a298cacb09e8aaa3367a29 · Patch
• https://lore.kernel.org/linux-cve-announce/2025061845-CVE-2022-50048-40d7@gregkh/T · Note
• https://access.redhat.com/security/cve/cve-2022-50048 · Note
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git · Note