Re: Why Sysrq+k does not offer a trusted path

[viro]

On Mon, Sep 29, 2003 at 08:53:59AM +0200, Oliver Tennert wrote:
> Thus it is a more secure way to offer a real SAK.
> 
> Or am I missing a very important point?

Scanning through the file descriptor tables of processes does not catch
every opened file out there.  For trivial example consider attaching an
open file to SCM_RIGHTS datagram and sending it to yourself.  Then close
the original descriptor.   Later you will be able to receive the datagram
and get your opened file back.
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