Its been confirmed on every modern CPU, not just Intel products. Ryzen is also affected by this, at least by Spectre, not by Meltdown. I just upgraded my fucking computer like 2 months ago too…
I’ll post something I found on another forum I frequent. Syntax isn’t working and I don’t feel like futzing with it.
Both Meltdown and Spectre are hardware security bugs in your CPU. They cannot be fixed by software patches.
Meltdown only occurs on Intel CPUs, and can be avoided (but not fixed!) by an OS kernel patch that rewrites the way your kernel’s virtual memory subsystem works. That means if you’re using an Intel CPU, you should update your OS right now.
If you’re having trouble with Windows Update (and let’s be honest, who doesn’t), you can manually download the patches here:
Windows 10: support.microsoft.com/en-us/he…ndows-10-update-kb4056892
Windows 8.1: support.microsoft.com/en-us/he…ndows-81-update-kb4056898
Windows 7: support.microsoft.com/en-us/he…indows-7-update-kb4056897
Unfortunately, because of the way that the patch changes your kernel’s virtual memory subsystem, you will potentially see performance degradation of up to 30% in any program that involves a large number of syscalls (e.g. reading/writing files, networking, or any program that interacts with the OS in any significant way). In the worst case, some people have reported performance degradation of up to 60%. But compared to having a massive security hole in your system? I think it’s worth it.
Spectre, on the other hand, is totally unpatchable. It occurs on any CPU that features branch prediction (read: every single modern CPU out there. Yes, YOUR CPU is vulnerable.) There is no way to fix this exploit without totally redesigning the CPU microarchitecture at the hardware level, and even then it’s highly unlikely that a fix for this will be made soon, given that it’s a very complex issue and can’t be fixed in a trivial manner.
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