Linux Kernel up to 6.6.93/6.12.33/6.15.2 wifi mt7915_mmio_wed_init null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k2.13

Summaryinfo

A vulnerability marked as critical has been reported in Linux Kernel up to 6.6.93/6.12.33/6.15.2. Affected is the function mt7915_mmio_wed_init of the component wifi. This manipulation causes null pointer dereference. This vulnerability is handled as CVE-2025-38155. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Linux Kernel up to 6.6.93/6.12.33/6.15.2. Affected by this vulnerability is the function mt7915_mmio_wed_init 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: mt76: mt7915: Fix null-ptr-deref in mt7915_mmio_wed_init() devm_ioremap() returns NULL on error. Currently, mt7915_mmio_wed_init() does not check for this case, which results in a NULL pointer dereference. Prevent null pointer dereference in mt7915_mmio_wed_init().

It is possible to read the advisory at git.kernel.org. This vulnerability is known as CVE-2025-38155 since 04/16/2025. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 265934 (Ubuntu 24.04 LTS / 25.04 : Linux kernel vulnerabilities (USN-7769-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.6.94, 6.12.34, 6.15.3 or 6.16-rc1 eliminates this vulnerability. Applying the patch e9f9cef1877ac32285dbc1f31b86c8955b712fc2/790d05cde359356feea8915094a51166af1629f5/d825ed9fd768be10d52beba6f57a4b50c0c154aa/efb95439c1477bbc955cacd0179c35e7861b437c 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 (265934), EUVD (EUVD-2025-19789) and CERT Bund (WID-SEC-2025-1452). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

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

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.5

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

NVD Base Score: 5.5
NVD Vector: 🔒

CVSSv2info

AVACAuCIA
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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: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 265934
Nessus Name: Ubuntu 24.04 LTS / 25.04 : Linux kernel vulnerabilities (USN-7769-1)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.6.94/6.12.34/6.15.3/6.16-rc1
Patch: e9f9cef1877ac32285dbc1f31b86c8955b712fc2/790d05cde359356feea8915094a51166af1629f5/d825ed9fd768be10d52beba6f57a4b50c0c154aa/efb95439c1477bbc955cacd0179c35e7861b437c

Timelineinfo

04/16/2025 CVE reserved
07/03/2025 +78 days Advisory disclosed
07/03/2025 +0 days VulDB entry created
04/18/2026 +289 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2025-38155 (🔒)
GCVE (CVE): GCVE-0-2025-38155
GCVE (VulDB): GCVE-100-314731
EUVD: 🔒
CERT Bund: WID-SEC-2025-1452 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 07/03/2025 12:12
Updated: 04/18/2026 09:37
Changes: 07/03/2025 12:12 (59), 07/03/2025 12:58 (1), 08/23/2025 20:18 (7), 09/21/2025 22:08 (1), 09/28/2025 07:31 (2), 11/09/2025 16:15 (1), 11/21/2025 05:49 (11), 12/06/2025 19:02 (1), 04/18/2026 09:37 (1)
Complete: 🔍
Cache ID: 216::103

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