CVE-2023-53638

In the Linux kernel, the following vulnerability has been resolved:

octeon_ep: cancel queued works in probe error path

If it fails to get the devices's MAC address, octepprobe exits while leaving the delayed work intrpoll_task queued. When the work later runs, it's a use after free.

Move the cancelation of intrpolltask from octepremove into octepdevicecleanup. This does not change anything in the octepremove flow, but octepdevicecleanup is called also in the octep_probe error path, where the cancelation is needed.

Note that the cancelation of ctrlmboxtask has to follow intrpolltask's, because the ctrlmboxtask may be queued by intrpolltask.