From: Anssi Hannula <anssi.hann...@bitwise.fi>
Date: Tue, 14 Feb 2017 19:11:44 +0200
> xilinx_emaclite looks at the received data to try to determine the
> Ethernet packet length but does not properly clamp it if
> proto_type == ETH_P_IP or 1500 < proto_type <= 1518, causing a buffer
> overflow and a panic via skb_panic() as the length exceeds the allocated
> skb size.
>
> Fix those cases.
>
> Also add an additional unconditional check with WARN_ON() at the end.
>
> Signed-off-by: Anssi Hannula <anssi.hann...@bitwise.fi>
> Fixes: bb81b2ddfa19 ("net: add Xilinx emac lite device driver")
Applied.
