The Unix Heritage Society mailing list
 help / color / mirror / Atom feed
From: random832@fastmail.com (Random832)
Subject: [TUHS] OT: critical Intel design flaw
Date: Wed, 03 Jan 2018 09:22:23 -0500	[thread overview]
Message-ID: <1514989343.884423.1222903600.4579DCEA@webmail.messagingengine.com> (raw)
In-Reply-To: <0b2201d3848a$02ba8d90$082fa8b0$@ronnatalie.com>

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain, Size: 591 bytes --]

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.


  reply	other threads:[~2018-01-03 14:22 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-01-03  7:53 Andy Kosela
2018-01-03 11:57 ` Ron Natalie
2018-01-03 14:22   ` Random832 [this message]
2018-01-03 13:43 Noel Chiappa
2018-01-03 14:26 ` Clem Cole
2018-01-03 17:28   ` Bakul Shah
2018-01-03 17:46     ` ron minnich
2018-01-03 18:28       ` Bakul Shah
2018-01-03 18:27     ` Clem Cole
2018-01-03 18:39       ` Forrest, Jon
2018-01-03 18:50         ` ron minnich
2018-01-03 19:56       ` Paul Winalski
2018-01-03 20:24       ` Bakul Shah
2018-01-03 23:40       ` Theodore Ts'o
2018-01-04  0:51         ` Larry McVoy
2018-01-04  2:13           ` Bakul Shah
2018-01-04  2:26             ` Larry McVoy
2018-01-04  3:31               ` Bakul Shah
2018-01-04  2:09         ` Arthur Krewat
2018-01-04  3:21           ` Dan Cross
2018-01-04 17:42             ` Arthur Krewat
2018-01-04 11:53         ` Harald Arnesen
2018-01-04 14:03           ` Clem Cole
2018-01-04 15:54             ` Larry McVoy
2018-01-04 16:45             ` Theodore Ts'o
2018-01-04 17:10               ` Andy Kosela
2018-01-04 17:17               ` Larry McVoy
2018-01-04 18:29                 ` Bakul Shah
2018-01-04 18:50                   ` Larry McVoy
2018-01-04 20:52                     ` Warner Losh
2018-01-04 20:56                       ` Bakul Shah
2018-01-04 20:56                   ` Theodore Ts'o
2018-01-04 21:16                     ` Warner Losh
2018-01-04 22:55                       ` Andy Kosela
2018-01-05 14:27                         ` Clem Cole
2018-01-04 21:17                     ` Bakul Shah
2018-01-04 17:20               ` Tom Ivar Helbekkmo
2018-01-04 17:28                 ` Warner Losh
2018-01-03 17:07 ` Bakul Shah
2018-01-03 17:06 Norman Wilson

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1514989343.884423.1222903600.4579DCEA@webmail.messagingengine.com \
    --to=random832@fastmail.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).