Re: [PATCH 3/3] ipvs: fix oops in ip_vs_dst_event on rmmod

To: Simon Horman <horms@xxxxxxxxxxxx>
Subject: Re: [PATCH 3/3] ipvs: fix oops in ip_vs_dst_event on rmmod
Cc: lvs-devel@xxxxxxxxxxxxxxx, netdev@xxxxxxxxxxxxxxx, netfilter-devel@xxxxxxxxxxxxxxx, Wensong Zhang <wensong@xxxxxxxxxxxx>, Julian Anastasov <ja@xxxxxx>, Hans Schillstrom <hans.schillstrom@xxxxxxxxxxxx>, Jesper Dangaard Brouer <brouer@xxxxxxxxxx>
From: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>
Date: Tue, 17 Jul 2012 12:08:47 +0200
On Wed, Jul 11, 2012 at 09:19:23AM +0900, Simon Horman wrote:
> From: Julian Anastasov <ja@xxxxxx>
>       After commit 39f618b4fd95ae243d940ec64c961009c74e3333 (3.4)
> "ipvs: reset ipvs pointer in netns" we can oops in
> ip_vs_dst_event on rmmod ip_vs because ip_vs_control_cleanup
> is called after the ipvs_core_ops subsys is unregistered and
> net->ipvs is NULL. Fix it by exiting early from ip_vs_dst_event
> if ipvs is NULL. It is safe because all services and dests
> for the net are already freed.

Applied, thanks.
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