Messages in this thread | | | Subject | Re: 3dfx - a security hazard? | Date | Fri, 12 Mar 1999 16:19:58 +0800 | From | David Luyer <> |
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Tigran wrote:
> I am probably missing something, but access to both /dev/3dfx and (e.g.) > /dev/mem is controlled by filesystem permission rules. Writing garbage to > either will crash the entire machine. Why is one a security hazard and > another is not?
Because if you want anyone to be able to play games, you give them 3dfx access - ideally you'd want a group 3dfx[1]. If there's a way to crash the system with 3dfx, then you're not providing 3dfx properly, and you're just inviting people to introduce a security hazard.
The same is definitely not true of /dev/mem - access to that is definitely restricted, and everybody knows that [or should].
David.
[1] or group d3fx, due to issues with quotas and users/groups starting with numbers....
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