Re: [PATCH][ATM] use rtnl_{lock,unlock} during device operations (take 2)

[Mitchell Blank Jr]

Werner Almesberger wrote:
> But yes, with a unified VCC table, it certainly makes sense to
> add a hash to validate those pointers. I still think that using
> pointers per se is a good idea, because they're naturally
> unique numbers.

True... it's gross when you have 32-bit userland and a 64-bit kernel but
we already dealt with that pain for sparc64.

> > the ATMSIGD_CTRL ioctl so at least there's no security hole but it's still
> > damn gross (no offense, Werner :-)
> 
> It could probably be used to leverage other security holes in
> atmsigd.

Not really... since atmsigd runs as root it could just as easily
open("/proc/kcore") and go to town.

-Mitch