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CVE-2025-39853
i40e: Fix potential invalid access when MAC list is empty
Description

In the Linux kernel, the following vulnerability has been resolved: i40e: Fix potential invalid access when MAC list is empty list_first_entry() never returns NULL - if the list is empty, it still returns a pointer to an invalid object, leading to potential invalid memory access when dereferenced. Fix this by using list_first_entry_or_null instead of list_first_entry.

INFO

Published Date :

Sept. 19, 2025, 4:15 p.m.

Last Modified :

Sept. 19, 2025, 4:15 p.m.

Remotely Exploit :

No

Source :

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

The following products are affected by CVE-2025-39853 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 resolve potential invalid memory access issues.
  • Update the Linux kernel to the latest version.
  • Apply the provided patch for i40e.
  • Reboot the system after updates.
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-2025-39853.

URL Resource
https://git.kernel.org/stable/c/1eadabcf5623f1237a539b16586b4ed8ac8dffcd
https://git.kernel.org/stable/c/3c6fb929afa313d9d11f780451d113f73922fe5d
https://git.kernel.org/stable/c/66e7cdbda74ee823ec2bf7b830ebd235c54f5ddf
https://git.kernel.org/stable/c/971feafe157afac443027acdc235badc6838560b
https://git.kernel.org/stable/c/9c21fc4cebd44dd21016c61261a683af390343f8
https://git.kernel.org/stable/c/a556f06338e1d5a85af0e32ecb46e365547f92b9
https://git.kernel.org/stable/c/e2a5e74879f9b494bbd66fa93f355feacde450c7
https://git.kernel.org/stable/c/fb216d980fae6561c7c70af8ef826faf059c6515
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-39853 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-2025-39853 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-2025-39853 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-2025-39853 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

    Sep. 19, 2025

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: i40e: Fix potential invalid access when MAC list is empty list_first_entry() never returns NULL - if the list is empty, it still returns a pointer to an invalid object, leading to potential invalid memory access when dereferenced. Fix this by using list_first_entry_or_null instead of list_first_entry.
    Added Reference https://git.kernel.org/stable/c/1eadabcf5623f1237a539b16586b4ed8ac8dffcd
    Added Reference https://git.kernel.org/stable/c/3c6fb929afa313d9d11f780451d113f73922fe5d
    Added Reference https://git.kernel.org/stable/c/66e7cdbda74ee823ec2bf7b830ebd235c54f5ddf
    Added Reference https://git.kernel.org/stable/c/971feafe157afac443027acdc235badc6838560b
    Added Reference https://git.kernel.org/stable/c/9c21fc4cebd44dd21016c61261a683af390343f8
    Added Reference https://git.kernel.org/stable/c/a556f06338e1d5a85af0e32ecb46e365547f92b9
    Added Reference https://git.kernel.org/stable/c/e2a5e74879f9b494bbd66fa93f355feacde450c7
    Added Reference https://git.kernel.org/stable/c/fb216d980fae6561c7c70af8ef826faf059c6515
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.