itlb_multihit is the only one that sounds like an actual bug, just like F00F and FDIV were on the original Pentium. Timing and other data side-channels are argu

itlb_multihit is the only one that sounds like an actual bug, just like F00F and FDIV were on the original Pentium. Timing and other data side-channels are arguably not bugs as Intel has long maintained the stance that CPU protection rings are not security boundaries but only meant to protect against accidents instead of deliberate maliciousness.