Re: [PATCH][net-next] ipv6: fix dereference of rt6_ex before null check error

[Eric Dumazet]

On Tue, 2017-10-10 at 18:01 +0100, Colin King wrote:
> From: Colin Ian King <colin.king@xxxxxxxxxxxxx>
> 
> Currently rt6_ex is being dereferenced before it is null checked
> hence there is a possible null dereference bug. Fix this by only
> dereferencing rt6_ex after it has been null checked.
> 
> Detected by CoverityScan, CID#1457749 ("Dereference before null check")
> 
> Fixes: 81eb8447daae ("ipv6: take care of rt6_stats")
> Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
> ---

Reviewed-by: Eric Dumazet <edumazet@xxxxxxxxxx>