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

[David Ahern]

On 7/19/19 2:11 AM, Peter Kosyh wrote:
> 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@xxxxxxxxx>
> ---
>  drivers/net/vrf.c | 58 +++++++++++++++++++++++++++++++++----------------------
>  1 file changed, 35 insertions(+), 23 deletions(-)
> 

Reviewed-by: David Ahern <dsa@xxxxxxxxxxxxxxxxxxx>