On Mon, 2005-09-26 at 01:54 +0100, Dave Airlie wrote:
> I was talking to Ben on IRC about this and I realised I wasn't really sure
> about this..
> 
> At the moment we allow the DRI client full r/w access to the framebuffer
> if I'm not mistaken (for software fallbacks and the like)..
> 
> If I put the PCIE GART table into fb memory (which I've no choice in), the
> user can mess it up and potentially in my mind cause us to read data from
> anywhere in system RAM...
> 
> Do we need to restrict the size of the maps we allow the DRI clients to
> acess in the FB area?

That would be good. FWIW, it's done that way in fglrx.


-- 
Earthling Michel Dänzer      |     Debian (powerpc), X and DRI developer
Libre software enthusiast    |   http://svcs.affero.net/rm.php?r=daenzer


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