netdev - Re: [PATCH v2] vrf: make sure skb->data contains ip header to make routing

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Message-Id: <20190721.133332.437348204765200497.davem@davemloft.net>
Date:   Sun, 21 Jul 2019 13:33:32 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     p.kosyh@...il.com
Cc:     dsa@...ulusnetworks.com, shrijeet@...il.com,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] vrf: make sure skb->data contains ip header to make
 routing

From: Peter Kosyh <p.kosyh@...il.com>
Date: Fri, 19 Jul 2019 11:11:47 +0300

> vrf_process_v4_outbound() and vrf_process_v6_outbound() do routing
> using ip/ipv6 addresses, but don't make sure the header is available
> in skb->data[] (skb_headlen() is less then header size).
> 
> Case:
> 
> 1) igb driver from intel.
> 2) Packet size is greater then 255.
> 3) MPLS forwards to VRF device.
> 
> So, patch adds pskb_may_pull() calls in vrf_process_v4/v6_outbound()
> functions.
> 
> Signed-off-by: Peter Kosyh <p.kosyh@...il.com>

Applied and queued up for -stable, thanks.