【摘 要】
：
Dear editor,rnRecently,researchers have discovered a new kind of attack named Meltdown[1]that exploits the out-of-order execu-tion behavior of modern processors and side-channels.The adversary can use this method to overcome the memory iso-lation that is
【机 构】
：
College of Computer Science,National University of Defense Technology,Changsha 410073,China;School o
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Dear editor,rnRecently,researchers have discovered a new kind of attack named Meltdown[1]that exploits the out-of-order execu-tion behavior of modern processors and side-channels.The adversary can use this method to overcome the memory iso-lation that is protected by a processor and read the entire kernel memory of a machine it executes on.Mitigating this new attack is thought to be expensive at the moment be-cause current solutions are based on common optimization techniques for modern processors.
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