3 Jan
2018
3 Jan
'18
8:22 p.m.
On Wed, Jan 3, 2018, at 06:57, Ron Natalie wrote:
I think it’s much ado about nothing. In fact, nearly
the same bug
cropped up in the 386 and we had to hack around it in UNIX then (in the
32 bit pentiums you can use one of the segment registers to provide a
second layer of security over paging. Alas, this doesn’t work on the
64 bit addressing mode).
To my understanding, what's leaking is the addresses (and possibly physical
addresses), which are in turn usable in a "rowhammer"-style attack - something
that didn't exist (or wasn't known, anyway) in the 386 era.