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CVE-2025-39991
wifi: ath11k: fix NULL dereference in ath11k_qmi_m3_load()
Description

In the Linux kernel, the following vulnerability has been resolved: wifi: ath11k: fix NULL dereference in ath11k_qmi_m3_load() If ab->fw.m3_data points to data, then fw pointer remains null. Further, if m3_mem is not allocated, then fw is dereferenced to be passed to ath11k_err function. Replace fw->size by m3_len. Found by Linux Verification Center (linuxtesting.org) with SVACE.

INFO

Published Date :

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

Last Modified :

Oct. 16, 2025, 3:28 p.m.

Remotely Exploit :

No

Source :

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

The following products are affected by CVE-2025-39991 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
Address NULL pointer dereference by replacing fw->size with m3_len.
  • Update the Linux kernel to the latest version.
  • Apply the specific patch for ath11k driver.
  • Recompile and install the modified kernel.
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-2025-39991.

URL Resource
https://git.kernel.org/stable/c/1f52119809b76d43759fc47da1cf708690b740a1
https://git.kernel.org/stable/c/3fd2ef2ae2b5c955584a3bee8e83ae7d7a98f782
https://git.kernel.org/stable/c/500fcc31e488d798937a23dbb1f62db46820c5b2
https://git.kernel.org/stable/c/888830b2cbc035838bebefe94502976da94332a5
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-39991 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-2025-39991 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-2025-39991 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-2025-39991 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: wifi: ath11k: fix NULL dereference in ath11k_qmi_m3_load() If ab->fw.m3_data points to data, then fw pointer remains null. Further, if m3_mem is not allocated, then fw is dereferenced to be passed to ath11k_err function. Replace fw->size by m3_len. Found by Linux Verification Center (linuxtesting.org) with SVACE.
    Added Reference https://git.kernel.org/stable/c/1f52119809b76d43759fc47da1cf708690b740a1
    Added Reference https://git.kernel.org/stable/c/3fd2ef2ae2b5c955584a3bee8e83ae7d7a98f782
    Added Reference https://git.kernel.org/stable/c/500fcc31e488d798937a23dbb1f62db46820c5b2
    Added Reference https://git.kernel.org/stable/c/888830b2cbc035838bebefe94502976da94332a5
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.