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CVE-2025-40195
mount: handle NULL values in mnt_ns_release()
Description

In the Linux kernel, the following vulnerability has been resolved: mount: handle NULL values in mnt_ns_release() When calling in listmount() mnt_ns_release() may be passed a NULL pointer. Handle that case gracefully.

INFO

Published Date :

Nov. 12, 2025, 10:15 p.m.

Last Modified :

Nov. 12, 2025, 10:15 p.m.

Remotely Exploit :

No

Source :

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

The following products are affected by CVE-2025-40195 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.

No affected product recoded yet

: Total Affected Vendor : 0 | Products : 0
Solution
Update the Linux kernel to handle NULL pointer dereferences in mnt_ns_release().
  • Update the Linux kernel.
  • Ensure mnt_ns_release() handles NULL pointers.
  • Test the mount system call.
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-2025-40195.

URL Resource
https://git.kernel.org/stable/c/2d68f8a7379d9c61005e982600c61948d4d019bd
https://git.kernel.org/stable/c/6c7ca6a02f8f9549a438a08a23c6327580ecf3d6
https://git.kernel.org/stable/c/99ae3e70a293834d0274c46a37120c71a24a4995
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-40195 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-2025-40195 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-2025-40195 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-2025-40195 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

    Nov. 12, 2025

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: mount: handle NULL values in mnt_ns_release() When calling in listmount() mnt_ns_release() may be passed a NULL pointer. Handle that case gracefully.
    Added Reference https://git.kernel.org/stable/c/2d68f8a7379d9c61005e982600c61948d4d019bd
    Added Reference https://git.kernel.org/stable/c/6c7ca6a02f8f9549a438a08a23c6327580ecf3d6
    Added Reference https://git.kernel.org/stable/c/99ae3e70a293834d0274c46a37120c71a24a4995
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.