CVE-2025-39746: Linux kernel · wifi: ath10k: shutdown driver when hardware is unreliable
Affects Linux kernelSource CVE Database V5
Not known to be exploited · fixed in e36991bddf8be63e79659f654cdb1722db4e8132 : patch Linux kernel soon.
Data as of 5 Nov 2026, 21:48 UTC
Rated High by Threat Radar's AI analysis · No CVSS score from NVD or the CNA
Thin evidence
One scorer or none- CISA SSVC
- Exploitation
- No evidence of active exploitation and no public proof of concept
- Automatable
- Attackers cannot reliably automate steps 1–4 of the kill chain
- Technical impact
- Limited control over the software or limited information exposure
CISA SSVC assessment, 2026-11-05.
- Patch
- Available – fixed in e36991bddf8be63e79659f654cdb1722db4e8132, c256a94d1b1b15109740306f7f2a7c2173e12072, 201c9b4485edc618863a60f97a2d88bddd139467 +1
Exploitation evidence
Disclosed: evidence found.
CVE published 11 Sep 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 5 Nov 2026.
What to do
Upgrade Linux kernel to e36991bddf8be63e79659f654cdb1722db4e8132, c256a94d1b1b15109740306f7f2a7c2173e12072, 201c9b4485edc618863a60f97a2d88bddd139467 or 84ca5632b8d05d1c2e25604d1d63434b2fb61c85.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in– |
AI-suggested
A fix is available in the Linux kernel as indicated by the listed fixed commit versions. Users should apply the updated kernel versions containing these fixes to prevent system crashes caused by this vulnerability.
Description
A vulnerability in the Linux kernel's ath10k WiFi driver can cause system crashes due to hardware unreliability. The driver may lose connection with the PCIe bus, leading to watchdog timeouts and system panics during resume operations. The fix involves shutting down the driver when hardware is deemed unreliable after consecutive restart failures to prevent crashes.
References
- git.kernel.org/stable/c/201c9b4485edc618863a60f97a2d88bddd139467 (opens in a new tab)
- git.kernel.org/stable/c/e36991bddf8be63e79659f654cdb1722db4e8132 (opens in a new tab)
- git.kernel.org/stable/c/84ca5632b8d05d1c2e25604d1d63434b2fb61c85 (opens in a new tab)
- git.kernel.org/stable/c/c256a94d1b1b15109740306f7f2a7c2173e12072 (opens in a new tab)