BaseFortify

Publication date: 2025-10-01

Last updated on: 2025-10-02

Assigner: kernel.org

Description

In the Linux kernel, the following vulnerability has been resolved: mm/uffd: fix warning without PTE_MARKER_UFFD_WP compiled in When PTE_MARKER_UFFD_WP not configured, it's still possible to reach pte marker code and trigger an warning. Add a few CONFIG_PTE_MARKER_UFFD_WP ifdefs to make sure the code won't be reached when not compiled in.

CVSS Scores

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Meta Information

Published

2025-10-01

Last Modified

2025-10-02

Generated

2026-07-06

AI Q&A

2025-10-01

EPSS Evaluated

2026-07-05

NVD

CVE-2022-50448

Affected Vendors & Products

Vendor	Product	Version / Range
linux	linux_kernel	From 5.15.160 (inc) to 5.16 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-UNKNOWN

Attack-Flow Graph

Executive Summary

This vulnerability involves the Linux kernel's memory management subsystem, specifically related to the uffd (userfaultfd) feature. When the PTE_MARKER_UFFD_WP configuration option is not enabled, the kernel code could still reach a section that handles this marker, causing a warning. The fix ensures that code related to PTE_MARKER_UFFD_WP is only reachable when the feature is compiled in, preventing unintended warnings.

Impact Analysis

The impact of this vulnerability is primarily related to kernel warnings that could be triggered incorrectly when the PTE_MARKER_UFFD_WP feature is not enabled. It does not describe a security breach or exploit but rather a code correctness and stability issue that could affect kernel behavior or debugging.

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