CVE-2025-37933: Linux kernel · octeon_ep: Fix host hang issue during device reboot
Source GCVE Database
Not known to be exploited · CVSS 5.5 Medium.
Data as of 13 Nov 2026, 19:22 UTC
Thin evidence
One scorer or noneCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitation 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 13 Nov 2026.
What to do
AI-suggested
A fix has been implemented in the Linux kernel to replace the direct call to ndo_stop with dev_close in the octeon_ep driver. Users should apply the updated kernel version containing this fix once available. No workaround or temporary mitigation is described.
Description
CVE-2025-37933 is a medium severity vulnerability in the Linux kernel's octeon_ep driver that causes a host hang during device reboot. The issue arises when the driver attempts to free resources twice by calling the device-specific ndo_stop function redundantly if the driver is unloaded after the device has already stopped. The fix involves replacing the direct call to ndo_stop with dev_close, which safely manages resource cleanup and prevents the double free scenario.
References
- nvd.nist.gov/vuln/detail/CVE-2025-37933 (opens in a new tab)
- git.kernel.org/stable/c/34f42736b325287a7b2ce37e415838f539767bda (opens in a new tab)
- git.kernel.org/stable/c/6d1052423518e7d0aece9af5e77bbc324face8f1 (opens in a new tab)
- git.kernel.org/stable/c/7e1ca1bed3f66e00377f7d2147be390144924276 (opens in a new tab)
- git.kernel.org/stable/c/c8d788f800f83b94d9db8b3dacc1d26be38a6ef4 (opens in a new tab)