netdev - Re: [PATCH] ip6_gre: fix a pontential issue in ip6erspan

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Date:   Fri, 15 Dec 2017 14:11:10 -0500 (EST)
From:   David Miller <davem@...emloft.net>
To:     yanhaishuang@...s.chinamobile.com
Cc:     kuznet@....inr.ac.ru, yoshfuji@...ux-ipv6.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        u9012063@...il.com
Subject: Re: [PATCH] ip6_gre: fix a pontential issue in ip6erspan_rcv

From: Haishuang Yan <yanhaishuang@...s.chinamobile.com>
Date: Fri, 15 Dec 2017 10:46:38 +0800

> pskb_may_pull() can change skb->data, so we need to load ipv6h/ershdr at
> the right place.
> 
> Fixes: 5a963eb61b7c ("ip6_gre: Add ERSPAN native tunnel support")
> Cc: William Tu <u9012063@...il.com>
> Signed-off-by: Haishuang Yan <yanhaishuang@...s.chinamobile.com>

The mentioned commit ID only exists in net-next, and this patch does not apply
cleanly there.