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From: Marek Lindner <mareklindner@neomailbox.ch>
Date: Mon, 27 Jan 2014 15:45:09 +0800
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Subject: Re: [B.A.T.M.A.N.] [PATCHv4 maint] batman-adv: fix potential kernel
	paging error for unicast transmissions
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Cc: Antonio Quartulli <antonio@meshcoding.com>


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On Monday 20 January 2014 16:07:53 Antonio Quartulli wrote:
> On 20/01/14 11:06, Linus L=FCssing wrote:
> > batadv_send_skb_prepare_unicast(_4addr) might reallocate the skb's
> > data. If it does then our ethhdr pointer is not valid anymore in
> > batadv_send_skb_unicast(), resulting in a kernel paging error.
> >
> >=20
> >
> > Fixing this by refetching the ethhdr pointer after the potential
> > reallocation.
> >
> >=20
> >
> > Introduced by b46c60b9e1ee7a1909c542413a85875a750955d6
> > ("batman-adv: improve unicast packet (re)routing")
> >
> >=20
> >
> > Signed-off-by: Linus L=FCssing <linus.luessing@web.de>
>=20
> Acked-by: Antonio Quartulli <antonio@meshcoding.com>

Applied in revision 41b3872.

Thanks,
Marek

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