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CVE-2025-39969
i40e: fix validation of VF state in get resources
Description

In the Linux kernel, the following vulnerability has been resolved: i40e: fix validation of VF state in get resources VF state I40E_VF_STATE_ACTIVE is not the only state in which VF is actually active so it should not be used to determine if a VF is allowed to obtain resources. Use I40E_VF_STATE_RESOURCES_LOADED that is set only in i40e_vc_get_vf_resources_msg() and cleared during reset.

INFO

Published Date :

Oct. 15, 2025, 8:15 a.m.

Last Modified :

Oct. 16, 2025, 3:29 p.m.

Remotely Exploit :

No

Source :

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

The following products are affected by CVE-2025-39969 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 fix an authorization issue in VF resource acquisition.
  • Update the Linux kernel to the latest version.
  • Apply the specific patch for the i40e driver.
  • Reboot the system after applying the update.
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-2025-39969.

URL Resource
https://git.kernel.org/stable/c/185745d56ec958bf8aa773828213237dfcc32f5a
https://git.kernel.org/stable/c/6128bbc7adc25c87c2f64b5eb66a280b78ef7ab7
https://git.kernel.org/stable/c/6c3981fd59ef11a75005ac9978f034da5a168b6a
https://git.kernel.org/stable/c/877b7e6ffc23766448236e8732254534c518ba42
https://git.kernel.org/stable/c/8e35c80f8570426fe0f0cc92b151ebd835975f22
https://git.kernel.org/stable/c/a991dc56d3e9a2c3db87d0c3f03c24f6595400f1
https://git.kernel.org/stable/c/e748f1ee493f88e38b77363a60499f979d42c58a
https://git.kernel.org/stable/c/f47876788a23de296c42ef9d505b5c1630f0b4b8
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-39969 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-2025-39969 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-2025-39969 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-2025-39969 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. 15, 2025

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: i40e: fix validation of VF state in get resources VF state I40E_VF_STATE_ACTIVE is not the only state in which VF is actually active so it should not be used to determine if a VF is allowed to obtain resources. Use I40E_VF_STATE_RESOURCES_LOADED that is set only in i40e_vc_get_vf_resources_msg() and cleared during reset.
    Added Reference https://git.kernel.org/stable/c/185745d56ec958bf8aa773828213237dfcc32f5a
    Added Reference https://git.kernel.org/stable/c/6128bbc7adc25c87c2f64b5eb66a280b78ef7ab7
    Added Reference https://git.kernel.org/stable/c/6c3981fd59ef11a75005ac9978f034da5a168b6a
    Added Reference https://git.kernel.org/stable/c/877b7e6ffc23766448236e8732254534c518ba42
    Added Reference https://git.kernel.org/stable/c/8e35c80f8570426fe0f0cc92b151ebd835975f22
    Added Reference https://git.kernel.org/stable/c/a991dc56d3e9a2c3db87d0c3f03c24f6595400f1
    Added Reference https://git.kernel.org/stable/c/e748f1ee493f88e38b77363a60499f979d42c58a
    Added Reference https://git.kernel.org/stable/c/f47876788a23de296c42ef9d505b5c1630f0b4b8
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.