CVE-2025-37933: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: octeon_ep: Fix host hang issue during device reboot When the host loses heartbeat messages from the device, the driver calls the device-specific ndo_stop function, which frees the resources. If the driver is unloaded in this scenario, it calls ndo_stop again, attempting to free resources that have already been freed, leading to a host hang issue. To resolve this, dev_close should be called instead of the device-specific stop function.dev_close internally calls ndo_stop to stop the network interface and performs additional cleanup tasks. During the driver unload process, if the device is already down, ndo_stop is not called.

Affected products

• Linux Linux Kernel: from 6.4, before 6.6.90 (fixed in 6.6.90); from 6.7, before 6.12.28 (fixed in 6.12.28); from 6.13, before 6.14.6 (fixed in 6.14.6); version 6.15 only

Published 2025-05-20. Last modified 2026-06-17.