Andrew Morton wrote:
> Repeatable pppoe crash :(
> 
> 
> Begin forwarded message:
> 
> http://bugme.osdl.org/show_bug.cgi?id=4381
> 
>            Summary: When i try to start a pppoe conn., crash at
>                     net/core/skbuff.c:91
>     Kernel Version: 2.6.11 (gentoo-dev-sources)
>             Status: NEW
>           Severity: blocking
>              Owner: shemminger@osdl.org
>          Submitter: o.cornu@gmail.com
> 
> Mar 21 21:28:05 Pai-mei <6>skput:over: f89b2335:16 put:16
> dev:<NULL>

Looks like hdrlen is uninitialized in ppp_async. This patch
initializes it to 2 like in ppp_synctty, but I'm not sure
whether this value is correct here. Paul?

Signed-off-by: Patrick McHardy <kaber@trash.net>