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The OS patch doesn't remove the CPU side-channel vulnerability. It adds mitigations to the OS kernel to avoid sensitive data being leaked in the processor cache in a way that can be abused by Meltdown and Spectre. The updates protect the victim, rather than removing a capability from an attacker. As such, it doesn't matter what OS version an attacker on an ...


The answer is "it depends". Your computer has a lot of processors in it. I don't mean CPU cores, I mean physically distinct processors. Many of these are microprocessors or microcontrollers built into the CPU itself, the chipset, the motherboard, the storage devices, RAID controllers, USB controllers, the peripherals (GPU, NIC, mouse, keyboard), ...

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