On Fri, 21 Jul 2000, James Sutherland wrote:
> On Thu, 20 Jul 2000, Dan Hollis wrote:
> > Ok, you prevent program from sending DISKTOBRICK IOCTL as root...
> > So disk2brick.c will just bypass the kernel API and bit-bang on the IDE
> > controller directly...
> If a usermode app can hit the hardware directly like that, there's
> something VERY broken...
James, you can erase BIOS flash from linux userland, you could probably
even physically destroy it too. I can think of great ways of physically
destroying one's CPU and maybe even motherboard too, from userland.
This is nothing new.
Is the kernel broken because you can bit-bang the hardware as root? Think
about it.
-Dan
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