netdev - Re: [PATCH] inet: fix NULL pointer Oops in fib(6)_rule

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Message-Id: <20131210.175611.817301757454300416.davem@davemloft.net>
Date:	Tue, 10 Dec 2013 17:56:11 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	stefan.tomanek@...tarbyte.de
Cc:	netdev@...r.kernel.org, daniel.golle@...il.com,
	sergei.shtylyov@...entembedded.com, eric.dumazet@...il.com
Subject: Re: [PATCH] inet: fix NULL pointer Oops in fib(6)_rule_suppress

From: Stefan Tomanek <stefan.tomanek@...tarbyte.de>
Date: Tue, 10 Dec 2013 23:21:25 +0100

> This changes ensures that the routing entry investigated by the suppress
> function actually does point to a device struct before following that pointer,
> fixing a possible kernel oops situation when verifying the interface group
> associated with a routing table entry.
> 
> According to Daniel Golle, this Oops can be triggered by a user process trying
> to establish an outgoing IPv6 connection while having no real IPv6 connectivity
> set up (only autoassigned link-local addresses).
> 
> Fixes: 6ef94cfafba15 ("fib_rules: add route suppression based on ifgroup")
> 
> Reported-by: Daniel Golle <daniel.golle@...il.com>
> Tested-by: Daniel Golle <daniel.golle@...il.com>
> Signed-off-by: Stefan Tomanek <stefan.tomanek@...tarbyte.de>

Looks good, applied and queued up for -stable, thanks!
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