Re: Unswappable memory needed is user space

Jeremy Fitzhardinge (jeremy@goop.org)
Thu, 10 Dec 1998 10:41:56 -0800 (PST)

On 09-Dec-98 David Feuer wrote:
> As for non-swapping, someone said it wouldn't protect
> against an untrusted root. This is almost true. Root _could_ dump the
> memory out at just the right moment, but this would be pretty hard..... (I
> think).....

An untrusted root could:
- change your executable to leak the info in other ways
- attach to your process with ptrace and see everything
- use strace to see your keystrokes and other inputs
- ...

You can't do anything against an untrusted root.

J

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