Re: [PATCH] [net] ipv6: sr: fix NULL pointer dereference in seg6_do_srh_encap()- v4 pkts

[David Miller]

From: Ahmed Abdelsalam <amsalam20@xxxxxxxxx>
Date: Fri, 20 Apr 2018 15:58:05 +0200

> In case of seg6 in encap mode, seg6_do_srh_encap() calls set_tun_src()
> in order to set the src addr of outer IPv6 header.
> 
> The net_device is required for set_tun_src(). However calling ip6_dst_idev()
> on dst_entry in case of IPv4 traffic results on the following bug.
> 
> Using just dst->dev should fix this BUG.
 ...
> Fixes: 8936ef7604c11 ipv6: sr: fix NULL pointer dereference when setting encap source address

Please format your Fixes: tag properly next time.  The commit header
text should be enclosed by (" ").  I fixed it up for you this time.

> Signed-off-by: Ahmed Abdelsalam <amsalam20@xxxxxxxxx>

Applied and queued up for -stable.