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VulnerabilityPublished Updated

CVE-2025-38541: Linux kernel · wifi: mt76: mt7925: Fix null-ptr-deref in mt7925_thermal_init()

Source GCVE Database

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Not known to be exploited · CVSS 5.5 Medium.

Data as of 13 Nov 2026, 20:06 UTC

CVSS 3.1 base score
5.5Medium
How severe the flaw is on the 0–10 CVSS scale.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 16 Aug 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 13 Nov 2026.

What to do

AI-suggested

A fix for this vulnerability has been implemented in the Linux kernel source code by adding a NULL check after the devm_kasprintf() call in mt7925_thermal_init(). Users should update to the fixed kernel version once available. Since this is not a cloud service, manual patching is required. Patch status is not explicitly confirmed in the input; check the vendor or kernel advisory for the fixed version and apply the update accordingly.

Description

A null pointer dereference vulnerability was identified and fixed in the Linux kernel's mt7925 wireless driver. The issue occurs because the function mt7925_thermal_init() did not check the return value of devm_kasprintf(), which can return NULL on error, leading to a NULL pointer dereference.

References

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