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CVE-2022-50448
mm/uffd: fix warning without PTE_MARKER_UFFD_WP compiled in
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.

INFO

Published Date :

Oct. 1, 2025, 12:15 p.m.

Last Modified :

Oct. 2, 2025, 7:12 p.m.

Remotely Exploit :

No

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products

The following products are affected by CVE-2022-50448 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
: Total Affected Vendor : 1 | Products : 1
Solution
Update the Linux kernel to a version that includes the fix for the uffd warning.
  • Update the Linux kernel to the latest stable version.
  • Ensure the configuration includes PTE_MARKER_UFFD_WP.
  • Recompile and deploy the updated kernel.
  • Verify the fix by testing the affected functionality.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2022-50448.

URL Resource
https://git.kernel.org/stable/c/2204a880cb0c51952463a24a4fa01a6514c5a25a
https://git.kernel.org/stable/c/515778e2d790652a38a24554fdb7f21420d91efc
https://git.kernel.org/stable/c/b76e4eb02e9edb9a0a51942acdb373ca01346e8c
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2022-50448 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2022-50448 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2022-50448 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2022-50448 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Oct. 01, 2025

    Action Type Old Value New Value
    Added 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.
    Added Reference https://git.kernel.org/stable/c/2204a880cb0c51952463a24a4fa01a6514c5a25a
    Added Reference https://git.kernel.org/stable/c/515778e2d790652a38a24554fdb7f21420d91efc
    Added Reference https://git.kernel.org/stable/c/b76e4eb02e9edb9a0a51942acdb373ca01346e8c
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
No CVSS metrics available for this vulnerability.