4 ms·
Well there is spectre, and meltdown. Spectre is much more limited than meltdown. The patch AMD was referring to was for Meltdown. Spectre at least does not lea
by anfilt 9y ago
Well there is spectre, and meltdown. Spectre is much more limited than meltdown. The patch AMD was referring to was for Meltdown.
Spectre at least does not leak ring-0 memory. Sure it means that some application might be able to read/infer memory values of other user-mode process.
- mintplant 9y agoSpectre is much scarier than Meltdown, from my understanding, because it represents a whole class of strategies that lack a single fix, even at the hardware level.
- earenndil 9y agoMy understanding is that it's not a bug of unintended behaviour, but rather a problem with the specification, all behaviour is as intended, but we need to have different behaviour. Which means that basically we need to get a new ISA -- or a new version of an existing one -- and transition everything to it.