This presumably means using ioperm() etc. but I guess this would only
work if the BIOS reflash was controlled by I/O and not by memory map (or
both).
If the BIOS flash does require ANY memory access then perhaps the
problem goes away simply by preventing module loading and reboots...
Otherwise a rogue root can not only screw the whole OS but the BIOS
too. (Or am I completely talking rubbish - is there an ioperm()
equivalent for memory protection ? I don't know of one).
Anyone that knows how this works care to comment ?
N
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