netdev - Re: [PATCH net] tunnel: fix dev null pointer dereference when send pkg larger than mtu in collect

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Date:   Fri, 16 Aug 2019 12:01:31 +0800
From:   Hangbin Liu <liuhangbin@...il.com>
To:     Eric Dumazet <eric.dumazet@...il.com>
Cc:     netdev@...r.kernel.org, Stefano Brivio <sbrivio@...hat.com>,
        wenxu <wenxu@...oud.cn>, Alexei Starovoitov <ast@...com>,
        "David S . Miller" <davem@...emloft.net>
Subject: Re: [PATCH net] tunnel: fix dev null pointer dereference when send
 pkg larger than mtu in collect_md mode

On Fri, Aug 16, 2019 at 11:24:18AM +0800, Hangbin Liu wrote:
> If yes, how about just set the skb dst to rt->dst, as the
> iptunnel_xmit would do later.
> 
> skb_dst_drop(skb);
> skb_dst_set(skb, &rt->dst);
> 

Tested and this donesn't work good....