CVE-2025-37933: Linux kernel · octeon_ep: Fix host hang issue during device reboot
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 5 Nov 2026, 22:03 UTC
Rated Medium by Threat Radar's AI analysis · No CVSS score from NVD or the CNA
Thin evidence
One scorer or noneExploitation evidence
Disclosed: evidence found.
CVE published 20 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 5 Nov 2026.
What to do
AI-suggested
A fix is available in the Linux kernel that replaces direct calls to the device-specific ndo_stop function with calls to dev_close during device reboot and driver unload. Users should update to the fixed kernel version once available to prevent host hangs related to this issue.
Description
A vulnerability in the Linux kernel's octeon_ep driver caused a host hang during device reboot due to improper resource freeing when the driver is unloaded. The issue arises because the device-specific ndo_stop function is called multiple times, freeing resources twice. The fix involves calling dev_close instead of ndo_stop directly, ensuring proper cleanup and preventing the host hang.
References
- git.kernel.org/stable/c/7e1ca1bed3f66e00377f7d2147be390144924276 (opens in a new tab)
- git.kernel.org/stable/c/c8d788f800f83b94d9db8b3dacc1d26be38a6ef4 (opens in a new tab)
- git.kernel.org/stable/c/6d1052423518e7d0aece9af5e77bbc324face8f1 (opens in a new tab)
- git.kernel.org/stable/c/34f42736b325287a7b2ce37e415838f539767bda (opens in a new tab)