PT-2025-26156 · Linux+1 · Linux Kernel+1

Published 2022-08-08 · Updated 2026-04-20 · CVE-2022-50230

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 The issue concerns the Linux kernel, specifically on arm64 systems that implement FEAT EPAN. The problem arises because UXN (User eXecute Never) is not set on the swapper page tables, resulting in denied read/write access to the idmap. This leads to a kernel panic when idmap kpti install ng mappings attempts to access idmap kpti flag. The fix involves setting UXN on the swapper 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

AZL-70471

BDU:2026-05787

CVE-2022-50230

OESA-2025-1727

OESA-2025-1728

Affected Products

Astra Linux

Linux Kernel

References · 31

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50230.json · Exploit
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-50230 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-38031 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-50057 · Security Note
• https://osv.dev/vulnerability/OESA-2025-1728 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2022-50230 · Vendor Advisory
• https://osv.dev/vulnerability/AZL-70471 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-26798 · Security Note
• https://ubuntu.com/security/CVE-2022-50230 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-50230 · Vendor Advisory
• https://osv.dev/vulnerability/ROOT-OS-UBUNTU-2404-CVE-2022-50230 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-21927 · Security Note
• https://cve.org/CVERecord?id=CVE-2022-50230 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-22026 · Security Note
• https://osv.dev/vulnerability/ROOT-OS-UBUNTU-2204-CVE-2022-50230 · Vendor Advisory