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VulnerabilityPublished Updated

CVE-2025-37933: Linux kernel · octeon_ep: Fix host hang issue during device reboot

Source GCVE Database

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Authoritative record:CVE-2025-37933· Medium

Not known to be exploited · CVSS 5.5 Medium.

Data as of 13 Nov 2026, 19:22 UTC

CVSS 3.1 base score
5.5Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
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 20 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 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

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