netdev - Re: oops / null deref in __inet6_check_established(), kernel 2.6.29-rc6

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Message-Id: <20090224.152704.210992553.davem@davemloft.net>
Date:	Tue, 24 Feb 2009 15:27:04 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	cebbert@...hat.com
Cc:	netdev@...r.kernel.org
Subject: Re: oops / null deref in __inet6_check_established(), kernel
 2.6.29-rc6

From: Chuck Ebbert <cebbert@...hat.com>
Date: Tue, 24 Feb 2009 18:21:47 -0500

> (This doesn't happen on 2.6.27/28)
> 
> tw is NULL at net/ipv6/inet6_hashtables.c:261:
> 
> 	if (twp != NULL) {
> 		*twp = tw;
> ===>		NET_INC_STATS_BH(twsk_net(tw), LINUX_MIB_TIMEWAITRECYCLED);
> 	} else if (tw != NULL) {
> 
> I can reproduce this on real hardware on x86_64 too...

How? :-)
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