Is Fedora, or Linux in general, vulnerable to a "paging exploit" like Vista appears to be?

[Douglas Phillipson]

Jamie Wellnitz wrote:

> On Thu, Oct 19, 2006 at 12:33:28PM -0700, Douglas Phillipson wrote:
>> I just read a new exploit for Vista that in my mind could be plausible 
>> for Linux also.  It involves forcing unused device drivers in memory to 
>> be paged to disk by allocating gobs of memory, then a program finds the 
>> area on the disk where the device driver code is and replaces it with 
>> exploited code.  When the driver gets paged back into Kernel memory you 
>> now have full access to the machine.  Could this happen to Linux? Can a 
>> non-root or even a root owned process access the swap space.  Swap is a 
>> file on Windows which probably makes it easier than Linux.  Swap on 
>> Linux typically is a unformatted file system, but can be a file in the 
>> file system if desired.  As I understand the exploit, Microsoft has 
>> implemented a policy with Vista that only drivers "Signed" by Microsoft 
>> can be installed on Vista.  This "Paging" exploit completely bypasses 
>> this requirement, easily.
>>
>> Here is the exploit presentation:
>>
>> http://www.blackhat.com/presentations/bh-usa-06/BH-US-06-Rutkowska.pdf
>>
>> DSP
>>

 > AFAIK, Linux drivers are in nonpaged kernel memory, so no matter how
 > much memory is allocated, they get to stay where they are.
 >
 > Thanks,
 > 	Jamie
 >

What about other root owned processes?  Is it possible with them?

Doug P