From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ahmed Abdelsalam <amsalam20@gmail.com>
Subject: Re: [net-next] ipv6: sr: Extract the right key values for
 "seg6_make_flowlabel"
Date: Sat, 28 Apr 2018 12:20:47 +0200
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        <20180427.135907.1528151032821602074.davem@davemloft.net>
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Cc: dav.lebrun@gmail.com, netdev@vger.kernel.org,
        linux-kernel@vger.kernel.org
To: David Miller <davem@davemloft.net>
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On Fri, 27 Apr 2018 13:59:07 -0400 (EDT)
David Miller <davem@davemloft.net> wrote:

> From: Ahmed Abdelsalam <amsalam20@gmail.com>
> Date: Thu, 26 Apr 2018 16:11:11 +0200
> 
> > @@ -119,6 +119,9 @@ int seg6_do_srh_encap(struct sk_buff *skb, struct ipv6_sr_hdr *osrh, int proto)
> >  	int hdrlen, tot_len, err;
> >  	__be32 flowlabel;
> >  
> > +	inner_hdr = ipv6_hdr(skb);
> 
> You have to make this assignment after, not before, the skb_cow_header()
> call.  Otherwise this point can be pointing to freed up memory.

Ok! 
I fixed and sent you a v2 of the patch. 

-- 
Ahmed Abdelsalam <amsalam20@gmail.com>