If the user gives a packet under 14 bytes, we'll end up reading off the end
of the skb (not oopsing, just reading off the end).
Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
Acked-by: NMax Krasnyanskiy <maxk@qualcomm.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>