netdev - Re: [PATCHv2 net] openvswitch: Scrub skb between namespaces

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Message-ID: <20151017075544.GE13981@pox.localdomain>
Date:	Sat, 17 Oct 2015 09:55:44 +0200
From:	Thomas Graf <tgraf@...g.ch>
To:	Joe Stringer <joestringer@...ira.com>
Cc:	netdev@...r.kernel.org, pshelar@...ira.com, hannes@...hat.com,
	jesse@...ira.com
Subject: Re: [PATCHv2 net] openvswitch: Scrub skb between namespaces

On 10/16/15 at 11:08am, Joe Stringer wrote:
> If OVS receives a packet from another namespace, then the packet should
> be scrubbed. However, people have already begun to rely on the behaviour
> that skb->mark is preserved across namespaces, so retain this one field.
> 
> This is mainly to address information leakage between namespaces when
> using OVS internal ports, but by placing it in ovs_vport_receive() it is
> more generally applicable, meaning it should not be overlooked if other
> port types are allowed to be moved into namespaces in future.
> 
> Signed-off-by: Joe Stringer <joestringer@...ira.com>

Perfect, thanks!

Acked-by: Thomas Graf <tgraf@...g.ch>
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