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I agree. You are right.
From: firstname.lastname@example.org [mailto:email@example.com] On Behalf Of Greg KH Sent: Thursday, November 01, 2007 10:52 AM To: Tan, Lin
Cc: firstname.lastname@example.org Subject: Re: Possible missing security checks in usbfs?
On Thu, Nov 01, 2007 at 10:42:02AM -0500, Tan, Lin wrote:
> Thank you so much for the response. :)
> I think a malicious driver (in kernel space) can still call these
> functions to create a device node, which is dangerous. If this is not
> possible, then there is no security hole.
I don't see how this is possible, do you?
Remember, if you have a malicious driver in kernel space, you can do whatever you want to do, no need to try to plod through the symbol table to lookup a static symbol in a kernel module and call that, just create the device node yourself with your own code :)
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