PT-2025-53974 · Linux · Linux Kernel

Published 2025-12-30 · Updated 2026-02-24 · CVE-2022-50856

Positive Technologies (AI Summary)

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

Description A flaw exists in the Linux kernel's CIFS implementation within the cifs ses add channel() function. Specifically, the function fails to free a transaction ID (xid) before returning, leading to a memory leak. This leak occurs when a channel is added during a CIFS session.

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

Exploit

Related Identifiers

CVE-2022-50856

RHSA-2023:6583

RHSA-2025:19447

SUSE-SU-2026:0263-1

SUSE-SU-2026:0317-1

SUSE-SU-2026:0411-1

SUSE-SU-2026:0617-1

Affected Products

Linux Kernel

References · 973

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50856.json · Exploit
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-50856 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2022-50856 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0317-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-50856 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-50856 · Security Note
• https://ubuntu.com/security/CVE-2022-50856 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-50856 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2022-50856 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2026:0617-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0411-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0263-1 · Vendor Advisory
• https://bugzilla.suse.com/1255996 · Note
• https://suse.com/security/cve/CVE-2023-54118 · Note
• https://bugzilla.suse.com/1255007 · Note