linux-kernel - Re: OOPS, ip -f inet6 route get fec0::1, linux-2.6.26, ip6_route_output, rt6_fill

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Date:	Mon, 11 Aug 2008 20:41:22 -0400
From:	Brian Haley <brian.haley@...com>
To:	Eugene Teo <eugeneteo@...nel.sg>
CC:	Alexey Dobriyan <adobriyan@...il.com>,
	John Gumb <john.gumb@...dberg.com>,
	linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
	YOSHIFUJI Hideaki <yoshfuji@...ux-ipv6.org>
Subject: Re: OOPS, ip -f inet6 route get fec0::1, linux-2.6.26,	ip6_route_output,
 rt6_fill_node+0x175

Eugene Teo wrote:
> I think it's better to use a helper routine like ipv6_get_saddr to make
> sure that both dst and rt6i_idev arguments are checked for NULL.
> 
> I have compiled, and tested the patch.
> 
> Thanks,
> Eugene
> 
> ---
> Fix NULL pointer dereference in rt6_fill_node().
> 
> # ip -f inet6 route get fec0::1
> 
> BUG: unable to handle kernel NULL pointer dereference at 00000000
> IP: [<c0369b85>] rt6_fill_node+0x175/0x3b0
> EIP is at rt6_fill_node+0x175/0x3b0
> 
> Cc: Stable <stable@...nel.org>
> Signed-off-by: Eugene Teo <eugeneteo@...nel.sg>

Acked-by: Brian Haley <brian.haley@...com>

But Yoshfuji might have another opinion since he did the work to remove 
ipv6_get_saddr() in the first place.

-Brian
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