Intel hardware bug

[Royce Williams]

On Wed, Jan 3, 2018 at 10:01 AM, Lev Serebryakov <lev at freebsd.org> wrote:

> Hello Joey,
>
> Wednesday, January 3, 2018, 4:56:50 AM, you wrote:
>
> > No way around it. It's hardware FAIL, and ignoring it isn't an option
> since
> > it's apparently a huge hole.
>  Looks like there IS way around it and it was "silently" committed to Linux
>
> http://pythonsweetness.tumblr.com/post/169166980422/the-
> mysterious-case-of-the-linux-page-table
>
>  But TLB flush on each syscall (twice) will slow down system, of course, so
> there should be option to disable it.
>

For what it's worth, this purports to be a PoC:

https://gist.github.com/dougallj/f9ffd7e37db35ee953729491cfb71392

Royce