It's not free, you will get a performance hits anywhere from 5% to 30% depending on the kind of apps that you use (more if you use virtual machines), but at least you're protected.
We have released Fatdog64 721 with updated kernel (4.14.12) that comes with this workaround.
You can, however, decide risk it and not use the workaround, by putting "pti=off" boot parameter. You'd better know what you're doing if you do that, though.
Apart from that, this release also supports microcode update and hibernation. We've bundled the latest microcode from both Intel (dated 8 Jan 2018) and AMD (latest from linux-firmware as of 10 Jan 2018); however it is unclear whether any of them address the problem.
Announcement (same announcement as 720).
Get it from the usual locations:
Primary site - ibiblio.org (US)
nluug.nl - European mirror
aarnet.edu - Australian mirror
uoc.gr - European mirror
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