PT-2025-53961 · Linux · Linux Kernel

Published 2025-12-30 · Updated 2026-02-24 · CVE-2022-50843

Positive Technologies (AI Summary)

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

Description A use-after-free (UAF) issue was identified and resolved in the Linux kernel related to dm clone functionality within the clone dtr() function. The issue also exists when dm resume() and dm destroy() are executed concurrently. The fix involves cancelling a timer again in clone dtr().

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

Exploit

Related Identifiers

CVE-2022-50843

RHSA-2023:2458

SUSE-SU-2026:0263-1

SUSE-SU-2026:0317-1

SUSE-SU-2026:0350-1

SUSE-SU-2026:0369-1

SUSE-SU-2026:0411-1

SUSE-SU-2026:0617-1

Affected Products

Linux Kernel

References · 984

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50843.json · Exploit
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-50843 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-50843 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2022-50843 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-50843 · Security Note
• https://osv.dev/vulnerability/CVE-2022-50843 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0350-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0617-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0369-1 · 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://osv.dev/vulnerability/SUSE-SU-2026:0317-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2022-50843 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-50843 · Vendor Advisory
• https://suse.com/security/cve/CVE-2023-53862 · Note