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VulnerabilityPublished Updated

CVE-2025-37744: Linux kernel · wifi: ath12k: fix memory leak in ath12k_pci_remove()

Source GCVE Database

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Not known to be exploited · CVSS 5.5 Medium.

Data as of 4 Nov 2026, 18:08 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 1 May 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 4 Nov 2026.

What to do

AI-suggested

A fix has been implemented to call ath12k_fw_unmap() in ath12k_pci_remove() when the ATH12K_FLAG_QMI_FAIL bit is set, preventing the memory leak. Users should update their Linux kernel to a version that includes this fix.

Description

CVE-2025-37744 is a medium severity vulnerability in the Linux kernel's ath12k WiFi driver. It involves a memory leak in the ath12k_pci_remove() function where allocated firmware memory is not freed under certain conditions. This issue was detected by kmemleak and affects the handling of PCI WLAN devices using the ath12k driver.

References

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