On Tue, Dec 03, 2013 at 11:37:04AM +0100, Wolfgang Walter wrote:
> 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.
These patches are already queued up for stable by David:
http://patchwork.ozlabs.org/bundle/davem/stable/?state=*
Greetings,
Hannes
--
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
