CVE-2025-37933
kernel: octeon_ep: Fix host hang issue during device reboot
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · May 20, 2025
Updated · June 30, 2026
Description
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.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.6CVSS:3.1/AV:P/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H
CWE-1341 · Multiple Releases of Same Resource or Handle