Linux Kernel up to 6.12.50/6.16.10/6.17.0 wifi ath11k_qmi_m3_load null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Linux Kernel up to 6.12.50/6.16.10/6.17.0. This impacts the function ath11k_qmi_m3_load of the component wifi. This manipulation causes null pointer dereference. This vulnerability is registered as CVE-2025-39991. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Linux Kernel up to 6.12.50/6.16.10/6.17.0. Affected by this vulnerability is the function ath11k_qmi_m3_load of the component wifi. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability. The summary by CVE is:

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.

The advisory is shared at git.kernel.org. This vulnerability is known as CVE-2025-39991 since 04/16/2025. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 302764 (Ubuntu 22.04 LTS / 24.04 LTS : Linux kernel vulnerabilities (USN-8095-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.12.51, 6.16.11, 6.17.1 or 6.18-rc1 eliminates this vulnerability. Applying the patch 1f52119809b76d43759fc47da1cf708690b740a1/888830b2cbc035838bebefe94502976da94332a5/500fcc31e488d798937a23dbb1f62db46820c5b2/3fd2ef2ae2b5c955584a3bee8e83ae7d7a98f782 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (302764) and CERT Bund (WID-SEC-2025-2298). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

  • Google Container-Optimized OS
  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • SUSE openSUSE
  • RESF Rocky Linux
  • Open Source Linux Kernel
  • IBM QRadar SIEM
  • Dell NetWorker

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.7
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.7
VulDB Temp Score: 5.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 302764
Nessus Name: Ubuntu 22.04 LTS / 24.04 LTS : Linux kernel vulnerabilities (USN-8095-1)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.12.51/6.16.11/6.17.1/6.18-rc1
Patch: 1f52119809b76d43759fc47da1cf708690b740a1/888830b2cbc035838bebefe94502976da94332a5/500fcc31e488d798937a23dbb1f62db46820c5b2/3fd2ef2ae2b5c955584a3bee8e83ae7d7a98f782

Timelineinfo

04/16/2025 CVE reserved
10/15/2025 +182 days Advisory disclosed
10/15/2025 +0 days VulDB entry created
03/18/2026 +154 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2025-39991 (🔒)
GCVE (CVE): GCVE-0-2025-39991
GCVE (VulDB): GCVE-100-328645
CERT Bund: WID-SEC-2025-2298 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 10/15/2025 12:08
Updated: 03/18/2026 21:12
Changes: 10/15/2025 12:08 (59), 11/03/2025 18:47 (7), 11/22/2025 18:08 (1), 12/21/2025 09:10 (1), 02/08/2026 20:15 (1), 03/18/2026 21:12 (2)
Complete: 🔍
Cache ID: 216::103

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