In the Linux kernel, the following vulnerability has been resolved:
sfc: fix NULL dereferences in ef100processdesign_param()
Since cited commit, ef100probemain() and hence also ef100checkdesignparams() run before efx->netdev is created; consequently, we cannot netifsettsomaxsize() or segs() at this point. Move those netif calls to ef100probenetdev(), and also replace netiferr within the design params code with pci_err.