Re: 3dfx - a security hazard?
Krzysztof G. Baranowski (kgb@manjak.knm.org.pl)
Fri, 12 Mar 1999 10:52:52 +0100 (EET)
On Thu, 11 Mar 1999, Tigran Aivazian wrote:
> But, as I said, Alan is always right, so I am merely curious
> as to what am I missing here.
3Dfx driver was written to allow safe access to 3Dfx boards
by non-root users. The problem is that it doesn't play it's
role well, because any user with access to /dev/3dfx can
write to arbitrary PCI config space of the card -> look at
doQueryUpdate(). In other words it gives you nothing over
'+s' stuff.
Kris
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