netdev - Re: [PATCH 2/2] [RFC] netlink: fix possible spoofing from non-root processes

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Message-ID: <20120819212327.GA14853@1984>
Date:	Sun, 19 Aug 2012 23:23:27 +0200
From:	Pablo Neira Ayuso <pablo@...filter.org>
To:	netdev@...r.kernel.org
Cc:	davem@...emloft.net
Subject: Re: [PATCH 2/2] [RFC] netlink: fix possible spoofing from non-root
 processes

On Fri, Aug 17, 2012 at 07:22:29PM +0200, pablo@...filter.org wrote:
[...]
> [ I don't know any FOSS program making use of Netlink to communicate
>   to processes, please, let me know if I'm missing anyone important ]

Patrick pinged me for little reminder on NETLINK_USERSOCK. We still
have to allow netlink-to-netlink userspace communication for it.

So, please find a new version of this patch that allows non-root
processes for that Netlink bus. For others, my patch restricts to root
processes the ability of sending messages with dst_pid != 0.

View attachment "0001-RFC-netlink-fix-possible-spoofing-from-non-root-proc.patch" of type "text/x-diff" (3096 bytes)