I am looking for patch for 2.6.7 to patch this vulnerability.
any helps would be great
google for it, vendor patches, what disto wo you have, they have it if official running 2.6.7 or backported it to e.g 2.6.5, or here www.kernel.org patches
Since this vulnerability requires local access to the machine, then I suggest you disable mtrr's (if you are running a server with remote access you probably don't need this anyway). And if you are just running a normal desktop machine that nobody else has access to, then no problem.