netdev - Re: Netlink mmap tx security?

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Message-Id: <20141015.195737.1429281929513331763.davem@davemloft.net>
Date:	Wed, 15 Oct 2014 19:57:37 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	dborkman@...hat.com
Cc:	luto@...capital.net, torvalds@...ux-foundation.org,
	kaber@...sh.net, netdev@...r.kernel.org, tgraf@...g.ch
Subject: Re: Netlink mmap tx security?

From: Daniel Borkmann <dborkman@...hat.com>
Date: Thu, 16 Oct 2014 01:45:22 +0200

> On 10/15/2014 04:01 AM, David Miller wrote:
>> From: Andy Lutomirski <luto@...capital.net>
>> Date: Tue, 14 Oct 2014 15:16:46 -0700
>>
>>> It's at least remotely possible that there's something that assumes
>>> that assumes that the availability of NETLINK_RX_RING implies
>>> NETLINK_TX_RING, which would be unfortunate.
>>
>> I already found one such case, nlmon :-/
> 
> Hmm, can you elaborate? I currently don't think that nlmon cares
> actually.

nlmon cares, openvswitch cares, etc:

http://openvswitch.org/pipermail/dev/2013-December/034496.html
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