Intel’s processors have a security bug and the fix could slow down PCs

A security flaw in Intel processors has led to a redesign of Linux and Windows kernels. Programmers have been busy for the past two months patching the Linux kernel’s virtual memory system to protect against a hardware bug in Intel CPUs that could let attackers exploit security weaknesses and access security keys, passwords, and files cached from a disk. The Register reports that software updates are required for both Windows and Linux systems, and performance of a machine will be affected.

Reports suggest information around the specific bug has been kept confidential between software and hardware vendors, and patches for the Linux kernel include comments that have been redacted to prevent attackers discovering the precise weakness. The...

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