From: Matthew Garrett <mjg59@coreos.com>
To: Kees Cook <keescook@chromium.org>
Cc: ksummit-discuss@lists.linuxfoundation.org,
Jiri Kosina <jkosina@suse.cz>,
Emily Ratliff <eratliff@linuxfoundation.org>
Subject: Re: [Ksummit-discuss] [TECH TOPIC] Kernel Hardening
Date: Wed, 26 Aug 2015 14:10:49 -0700 [thread overview]
Message-ID: <CAPeXnHsTMY+s4Qdj5JJTtLE1jyM6_THsLnpHrSUSpDWWpO2qeg@mail.gmail.com> (raw)
In-Reply-To: <CAGXu5jKLd=9y2=r21fKrN9tK6=TCPBqzZgBiqWqOqYnw5uj2tA@mail.gmail.com>
(Resending now this address is subscribed)
On Wed, Aug 26, 2015 at 1:51 PM, Kees Cook <keescook@chromium.org> wrote:
> I think another valuable developer to invite would be Matthew Garrett.
> He's been looking at hardening the line between root and kernel for a
> while now.
Yeah, we can't rely on userspace to avoid or mitigate all privilege
escalation bugs - avoiding userspace escalation inherently turning
into owning the kernel remains valuable. There's various approaches to
validating userspace state that are only achievable if the kernel is
still trustworthy, so the assumption that root = game over is one that
we shouldn't allow the kernel to embody.
next prev parent reply other threads:[~2015-08-26 21:10 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-24 4:20 James Morris
2015-08-24 11:46 ` Jiri Kosina
2015-08-24 11:56 ` James Morris
2015-08-24 17:17 ` Kees Cook
2015-08-24 17:28 ` Andy Lutomirski
2015-08-24 17:39 ` Julia Lawall
2015-08-24 18:01 ` Kees Cook
2015-08-24 18:19 ` Andy Lutomirski
2015-08-24 18:57 ` Kees Cook
2015-08-24 18:52 ` Thomas Gleixner
2015-08-24 18:59 ` Thomas Gleixner
2015-08-24 19:00 ` Kees Cook
2015-08-24 22:05 ` Greg KH
2015-08-25 0:51 ` Rafael J. Wysocki
2015-08-31 20:10 ` Eric W. Biederman
2015-08-31 20:22 ` josh
2015-08-26 20:51 ` Kees Cook
2015-08-26 21:10 ` Matthew Garrett [this message]
2015-08-30 0:41 ` [Ksummit-discuss] Self nomination Matthew Garrett
2015-08-24 11:48 ` [Ksummit-discuss] [TECH TOPIC] Kernel Hardening Jiri Kosina
2015-08-24 12:29 ` Linus Walleij
2015-08-24 12:51 ` Jason Cooper
2015-08-24 16:35 ` Kees Cook
2015-08-24 20:09 ` James Bottomley
2015-08-24 20:17 ` James Morris
2015-08-24 20:46 ` Thomas Gleixner
2015-08-24 22:22 ` James Morris
2015-08-24 23:20 ` Kees Cook
2015-08-24 23:54 ` Theodore Ts'o
2015-08-25 0:06 ` James Morris
2015-08-25 0:06 ` Kees Cook
2015-08-27 22:08 ` [Ksummit-discuss] grsecurity and kernel hardening Stephen Hemminger
2015-08-27 22:49 ` James Bottomley
2015-08-27 23:03 ` Stephen Hemminger
2015-08-24 23:04 ` [Ksummit-discuss] [TECH TOPIC] Kernel Hardening Kees Cook
2015-08-25 16:45 ` Luis R. Rodriguez
2015-08-24 22:57 ` Kees Cook
2015-08-24 23:25 ` Kees Cook
2015-08-24 20:28 ` josh
2015-08-24 22:55 ` Kees Cook
2015-08-24 23:13 ` Andy Lutomirski
2015-08-31 20:58 ` Eric W. Biederman
2015-09-01 9:03 ` Jiri Kosina
2015-09-01 16:52 ` Kees Cook
2015-09-01 16:50 ` Kees Cook
2015-08-25 15:15 ` Shuah Khan
2015-08-25 16:15 ` Kees Cook
2015-08-25 16:30 ` Mark Brown
2015-08-25 16:33 ` Kees Cook
2015-08-25 16:58 ` Shuah Khan
2015-09-22 12:24 ` Dan Carpenter
2015-09-22 12:55 ` Yves-Alexis Perez
2015-09-22 12:59 ` Julia Lawall
2015-09-22 18:02 ` Andy Lutomirski
2015-08-24 16:20 ` Aneesh Kumar K.V
2015-08-24 17:19 ` Kees Cook
2015-08-24 18:50 ` James Morris
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