From: Jianbo Liu <[email protected]>
Date: Mon, 9 Jul 2018 02:26:20 +0000
> Zahari issued tc vlan command without setting vlan_ethtype, which will
> crash kernel. To avoid this, we must check tb[TCA_FLOWER_KEY_VLAN_ETH_TYPE]
> is not null before use it.
> Also we don't need to dump vlan_ethtype or cvlan_ethtype in this case.
>
> Fixes: d64efd0926ba ('net/sched: flower: Add supprt for matching on QinQ vlan
> headers')
> Signed-off-by: Jianbo Liu <[email protected]>
> Reported-by: Zahari Doychev <[email protected]>
Applied.
