On 01/25/2018 06:11 PM, Liran Alon wrote: > It is true that attacker cannot speculate to a kernel-address, but it > doesn't mean it cannot use the leaked kernel-address together with > another unrelated vulnerability to build a reliable exploit.
The address doesn't leak if you can't execute there. It's the same reason that we don't worry about speculation to user addresses from the kernel when SMEP is in play.
