netdev - Re: [PATCH] net: prevent of emerging cross-namespace symlinks

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Message-Id: <20140825.151840.251699935053411845.davem@davemloft.net>
Date:	Mon, 25 Aug 2014 15:18:40 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	git.user@...il.com
Cc:	netdev@...r.kernel.org, vfalico@...hat.com
Subject: Re: [PATCH] net: prevent of emerging cross-namespace symlinks

From: "Alexander Y. Fomichev" <git.user@...il.com>
Date: Mon, 25 Aug 2014 16:26:45 +0400

> Code manipulating sysfs symlinks on adjacent net_devices(s)
> currently doesn't take into account that devices potentially
> belong to different namespaces.
> 
> This patch trying to fix an issue as follows:
> - check for net_ns before creating / deleting symlink.
>   for now only netdev_adjacent_rename_links and
>   __netdev_adjacent_dev_remove are affected, afaics
>   __netdev_adjacent_dev_insert implies both net_devs
>   belong to the same namespace.
> - Drop all existing symlinks to / from all adj_devs before
>   switching namespace and recreate them just after.
> 
> Signed-off-by: Alexander Y. Fomichev <git.user@...il.com>

Applied, thanks.
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