Messages in this thread | | | Date | Mon, 29 Sep 2003 08:21:27 +0100 | From | viro@parcelfa ... | Subject | Re: Why Sysrq+k does not offer a trusted path |
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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. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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