netdev - Re: [PATCH 1/15] spidernet: null out skb pointer after its been used.

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Message-ID: <46704F29.8060805@garzik.org>
Date:	Wed, 13 Jun 2007 16:10:17 -0400
From:	Jeff Garzik <jeff@...zik.org>
To:	Linas Vepstas <linas@...tin.ibm.com>
CC:	Michael Ellerman <michael@...erman.id.au>, netdev@...r.kernel.org,
	cbe-oss-dev@...abs.org
Subject: Re: [PATCH 1/15] spidernet: null out skb pointer after its been used.

Linas Vepstas wrote:
> Avoid kernel crash in mm/slab.c due to double-free of pointer.
> 
> If the ethernet interface is brought down while there is still
> RX traffic in flight, the device shutdown routine can end up
> trying to double-free an skb, leading to a crash in mm/slab.c
> Avoid the double-free by nulling out the skb pointer.
> 
> Signed-off-by: Linas Vepstas <linas@...tin.ibm.com>
> 
> ----
>  drivers/net/spider_net.c |    1 +
>  1 file changed, 1 insertion(+)

applied 1-5, 7 to #upstream-fixes (2.6.22)

patch #6 was ignored, because it was already upstream


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