Am Dienstag, 3. Dezember 2013, 10:56:45 schrieb Steffen Klassert:
> Ccing stable.
>
> On Sun, Dec 01, 2013 at 08:35:06PM -0500, David Miller wrote:
> > From: Matthias Schiffer <mschiffer@xxxxxxxxxxxxxxxxxxxx>
> > Date: Sun, 01 Dec 2013 05:19:53 +0100
> >
> > > On 11/24/2013 03:27 PM, Matthias Schiffer wrote:
> > >> On 11/01/2013 09:21 AM, Steffen Klassert wrote:
> > >>> On some codepaths the skb does not have a dst entry
> > >>> when xfrm_decode_session() is called. So check for
> > >>> a valid skb_dst() before dereferencing the device
> > >>> interface index. We use 0 as the device index if
> > >>> there is no valid skb_dst(), or at reverse decoding
> > >>> we use skb_iif as device interface index.
> > >>>
> > >>> Bug was introduced with git commit bafd4bd4dc
> > >>> ("xfrm: Decode sessions with output interface.").
> > >>>
> > >>> Reported-by: Meelis Roos <mroos@xxxxxxxx>
> > >>> Tested-by: Meelis Roos <mroos@xxxxxxxx>
> > >>> Signed-off-by: Steffen Klassert <steffen.klassert@xxxxxxxxxxx>
> > >>
> > >> Please queue this for 3.12-stable, I've seen this bug trigger a panic
> > >> when heavily using Bittorrent (screenshot:
> > >> http://i.imgur.com/OIKVccM.jpg )
> > >>
> > >> Thanks,
> > >> Matthias
> > >
> > > Ping? Several people I know have hit this panic with 3.12.x at least
> > > once or twice by now during heavy IPv6 usage.
> >
> > Steffen submitted it to stable@xxxxxxxxxxxxxxx for inclusion on Monday
> > November 25th.
>
> It apparently did not make it into v3.12.2 and it is not in the v3.12.3
> review included. So I wonder if I need to do anything additional to
> get it included. It is the first time that I did a stable submission
> myself.
>
> I tried to follow the instructions at Documentation/stable_kernel_rules.txt
> but maybe I've missed something.
There is another weakness with ipv6 in 3.12.x which - under certain
circumstances - can be exploited remotely:
ipv6 fragmentation-related panic in netfilter
I would be very glad if this would make it into 3.12 stable soon.
Regards,
--
Wolfgang Walter
Studentenwerk München
Anstalt des öffentlichen Rechts
--
To unsubscribe from this list: send the line "unsubscribe stable" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
