netdev - Re: Kernel panic when using bridge

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Message-ID: <1302619749.3233.56.camel@edumazet-laptop>
Date:	Tue, 12 Apr 2011 16:49:09 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Jan Lübbe <jluebbe@...ian.org>
Cc:	Scot Doyle <lkml@...tdoyle.com>,
	Stephen Hemminger <shemminger@...tta.com>,
	Hiroaki SHIMODA <shimoda.hiroaki@...il.com>,
	netdev@...r.kernel.org
Subject: Re: Kernel panic when using bridge

Le mardi 12 avril 2011 à 16:19 +0200, Jan Lübbe a écrit :

> Your patch should catch those forged packets before more harmful things
> can go wrong, but even before my patch, i think forged packets could
> cause trouble...

Well, this is a debugging aid and wont avoid a crash later (since we
already made an out of bounds write, generally on a stack slot)

Of course, this might be a complete shot in the dark, but a
stackprotector fault in icmp_send() really sounds like a problem in
ip_options_echo() [ or bad input data given to this function ]


Other related changes (but as old as v2.6.22) :

commit 11a03f78fbf15a866ba
([NetLabel]: core network changes)



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