CVE-2025-37744: Linux kernel · wifi: ath12k: fix memory leak in ath12k_pci_remove()
Source GCVE Database
Not known to be exploited · CVSS 5.5 Medium.
Data as of 4 Nov 2026, 18:08 UTC
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 1 May 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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
- nvd.nist.gov/vuln/detail/CVE-2025-37744 (opens in a new tab)
- git.kernel.org/stable/c/1b24394ed5c8a8d8f7b9e3aa9044c31495d46f2e (opens in a new tab)
- git.kernel.org/stable/c/3cb47b50926a5b9eef8c06506a14cdc0f3d95c53 (opens in a new tab)
- git.kernel.org/stable/c/52e3132e62c31b5ade43dc4495fa81175e6e8398 (opens in a new tab)
- git.kernel.org/stable/c/cb8f4c5f9c487d82a566672b5ed0c9f05e40659b (opens in a new tab)