octeon_ep: Fix host hang issue during device reboot

Vulnerability 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.

References

• https://git.kernel.org/stable/c/7e1ca1bed3f66e00377f7d2147be390144924276
• https://git.kernel.org/stable/c/c8d788f800f83b94d9db8b3dacc1d26be38a6ef4
• https://git.kernel.org/stable/c/6d1052423518e7d0aece9af5e77bbc324face8f1
• https://git.kernel.org/stable/c/34f42736b325287a7b2ce37e415838f539767bda