PT-2025-40133 · Linux · Linux Kernel

Published 2022-10-12 · Updated 2025-10-01 · CVE-2022-50448

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 flaw exists in the Linux kernel’s mm/uffd module. Specifically, a warning can occur when PTE MARKER UFFD WP is not compiled in, potentially leading to unexpected behavior. The issue arises because code paths intended to be used only when PTE MARKER UFFD WP is enabled can still be reached without it, triggering a warning. The fix involves adding conditional compilation checks (ifdefs) to prevent this code from being executed when CONFIG PTE MARKER UFFD WP is not defined.

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

Exploit

Weakness Enumeration

CWE-19

Related Identifiers

BDU:2026-06088

CVE-2022-50448

Affected Products

Linux Kernel

References · 15

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50448.json · Exploit
• https://ubuntu.com/security/CVE-2022-50448 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-50448 · Security Note
• https://git.kernel.org/stable/c/b76e4eb02e9edb9a0a51942acdb373ca01346e8c · Patch
• https://osv.dev/vulnerability/CVE-2022-50448 · Vendor Advisory
• https://git.kernel.org/stable/c/515778e2d790652a38a24554fdb7f21420d91efc · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-50448 · Vendor Advisory
• https://git.kernel.org/stable/c/2204a880cb0c51952463a24a4fa01a6514c5a25a · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-50448 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2022-50448 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2022-50448 · Security Note
• https://bdu.fstec.ru/vul/2026-06088 · Security Note
• https://twitter.com/CVEnew/status/1973391513410560489 · Twitter Post
• https://git.kernel.org/linus/515778e2d790652a38a24554fdb7f21420d91efc · Note
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git · Note