CVE-2026-98620

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

net: ethernet: mtk eth soc: unregister net devices in case of probe failure

If register netdev() fails for one of the MTK MAX DEVS devices in mtk probe(), the error path jumps to err deinit ppe, skipping mtk unreg dev(). The previously registered net devices are then freed by mtk free dev() while still in NETREG REGISTERED state, hitting the BUG ON(dev->reg state != NETREG UNREGISTERED).

Route the register netdev() failure to err unreg netdev so the net devices registered so far are properly unregistered before being freed.