PT-2025-26002 · Linux+3 · Linux Kernel+3

Published 2022-08-19 · Updated 2025-07-28 · CVE-2022-50076

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 memory leak issue has been identified in the Linux kernel, specifically in the cifs (Common Internet File System) component. The issue occurs when the deferred close work is canceled, and the struct cifs deferred close is not properly cleaned up. This results in a memory leak, which can be detected using tools like kmemleak. The issue has been reported to cause unreferenced objects, and a backtrace is provided to illustrate the problem.

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

Exploit

Memory Leak

Weakness Enumeration

CWE-401

Related Identifiers

BDU:2026-03373

CVE-2022-50076

RHSA-2023:6583

RHSA-2023_6583

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

Red Hat

Suse

References · 593

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50076.json · Exploit
• https://ubuntu.com/security/CVE-2022-50076 · Vendor Advisory
• https://git.kernel.org/stable/c/ca08d0eac020d48a3141dbec0a3cf64fbdb17cde · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:02537-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2022-50076 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-50076 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:02264-1 · Vendor Advisory
• https://git.kernel.org/stable/c/860efae127888ae535bc4eda1b7f27642727c69e · Patch
• https://cve.org/CVERecord?id=CVE-2022-50076 · Security Note
• https://git.kernel.org/stable/c/60b6d38add7b9c17d6e5d49ee8e930ea1a5650c5 · Patch
• https://bdu.fstec.ru/vul/2026-03373 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:02321-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-50076 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-50076 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-50076 · Vendor Advisory