PT-2025-26158 · Linux+1 · Linux Kernel+1

Published 2022-08-08 · Updated 2026-04-20 · CVE-2022-50232

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 vulnerability in the Linux kernel has been resolved. The issue occurs on systems that implement FEAT EPAN, where read/write access to the idmap is denied because UXN is not set on the swapper PTEs. As a result, idmap kpti install ng mappings generates a kernel panic when accessing idmap kpti flag. The problem is fixed by setting UXN on these PTEs.

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

Exploit

RCE

Weakness Enumeration

CWE-20

Related Identifiers

BDU:2026-05788

CVE-2022-50232

SUSE-SU-2026:0474-1

SUSE-SU-2026:0496-1

SUSE-SU-2026:0617-1

SUSE-SU-2026:1131-1

Affected Products

Astra Linux

Linux Kernel

References · 857

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50232.json · Exploit
• https://osv.dev/vulnerability/SUSE-SU-2026:0496-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-50232 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-50232 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0617-1 · Vendor Advisory
• https://git.kernel.org/stable/c/c3cee924bd855184d15bc4aa6088dcf8e2c1394c · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-50232 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-50232 · Security Note
• https://osv.dev/vulnerability/ROOT-OS-UBUNTU-2204-CVE-2022-50232 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-50232 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-05788 · Security Note
• https://osv.dev/vulnerability/ROOT-OS-UBUNTU-2404-CVE-2022-50232 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:1131-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2022-50232 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2026:0474-1 · Vendor Advisory