Re: Reading /dev/mem by dd

[Andi Kleen]

Henrique de Moraes Holschuh <hmh@xxxxxxxxxx> writes:
>
> We should.  Imaging /dev/mem is one of the oldest tricks in the book of the
> forensics people, they do it to live systems to help track down WTF happened
> to a compromised host.  This kind of crap bites them hard.

It seems more like a case of hurting themselves.

>
> IMO: if you're going to provide /dev/mem, make it as safe as possible.

That would also make it useless for people who want to access MMIO using
/dev/mem. Which is a lot of programs.

-Andi

-- 
ak@xxxxxxxxxxxxxxx -- Speaking for myself only.
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