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From: "Theodore Ts'o" <tytso@mit.edu>
To: vegard.nossum@oracle.com
Cc: linux-kernel@vger.kernel.org,
	Tommi Rantala <tt.rantala@gmail.com>,
	Ingo Molnar <mingo@kernel.org>,
	"Eric W. Biederman" <ebiederm@xmission.com>,
	Andy Lutomirski <luto@amacapital.net>,
	Kees Cook <keescook@chromium.org>,
	Daniel Vetter <daniel.vetter@ffwll.ch>,
	Alan Cox <alan@linux.intel.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jason Wang <jasowang@redhat.com>,
	"David S. Miller" <davem@davemloft.net>,
	Dan Carpenter <dan.carpenter@oracle.com>,
	James Morris <james.l.morris@oracle.com>
Subject: Re: [PATCH 1/9] Known exploit detection
Date: Thu, 12 Dec 2013 14:06:59 -0500	[thread overview]
Message-ID: <20131212190659.GG13547@thunk.org> (raw)
In-Reply-To: <1386867152-24072-1-git-send-email-vegard.nossum@oracle.com>

On Thu, Dec 12, 2013 at 05:52:24PM +0100, vegard.nossum@oracle.com wrote:
> From: Vegard Nossum <vegard.nossum@oracle.com>
> 
> The idea is simple -- since different kernel versions are vulnerable to
> different root exploits, hackers most likely try multiple exploits before
> they actually succeed.

Suppose we put put this into the mainstream kernel.  Wouldn't writers
of root kit adapt by checking for the kernel version to avoid checking
for exploits that are known not work?  So the question is whether the
additional complexity in the kernel is going to be worth it, since
once the attackers adapt, the benefits of trying to detect attacks for
mitigated exploits will be minimal.

Regards,

							- Ted

  parent reply	other threads:[~2013-12-12 19:07 UTC|newest]

Thread overview: 49+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-12-12 16:52 [PATCH 1/9] Known exploit detection vegard.nossum
2013-12-12 16:52 ` [PATCH 2/9] exploit: report to audit subsystem when available vegard.nossum
2013-12-12 16:52 ` [PATCH 3/9] hfs: Known exploit detection for CVE-2011-4330 vegard.nossum
2013-12-13  8:00   ` Dan Carpenter
2013-12-12 16:52 ` [PATCH 4/9] net: Known exploit detection for CVE-2012-2136 vegard.nossum
2013-12-12 16:52 ` [PATCH 5/9] hfsplus: Known exploit detection for CVE-2012-2319 vegard.nossum
2013-12-13  1:40   ` Greg Kroah-Hartman
2013-12-13 11:14   ` One Thousand Gnomes
2013-12-12 16:52 ` [PATCH 6/9] x86: Known exploit detection for CVE-2013-0268 vegard.nossum
2013-12-12 16:52 ` [PATCH 7/9] drm/i915: Known exploit detection for CVE-2013-0913 vegard.nossum
2013-12-12 16:52 ` [PATCH 8/9] userns: Known exploit detection for CVE-2013-1959 vegard.nossum
2013-12-12 16:52 ` [PATCH 9/9] perf: Known exploit detection for CVE-2013-2094 vegard.nossum
2013-12-12 19:06 ` Theodore Ts'o [this message]
2013-12-12 21:13   ` [PATCH 1/9] Known exploit detection Kees Cook
2013-12-12 23:50     ` Ryan Mallon
2013-12-12 23:55       ` Kees Cook
2013-12-13 11:10         ` One Thousand Gnomes
2013-12-13 14:21           ` Jiri Kosina
2013-12-13  9:20       ` Vegard Nossum
2013-12-13 22:49         ` Ryan Mallon
2013-12-13 13:06       ` Ingo Molnar
2013-12-13 15:55         ` Jason Cooper
2013-12-13 23:07         ` Ryan Mallon
2013-12-13  0:25     ` Dave Jones
2013-12-13  0:45       ` Andy Lutomirski
2013-12-13  1:42       ` Greg Kroah-Hartman
2013-12-13  1:44         ` Dave Jones
2013-12-13  5:09         ` James Morris
2013-12-13  5:46           ` Theodore Ts'o
2013-12-13 13:19             ` Ingo Molnar
2013-12-13 10:21           ` Vegard Nossum
2013-12-13 10:31         ` Alexander Holler
2013-12-13 11:48           ` Dan Carpenter
2013-12-13 11:57             ` Greg Kroah-Hartman
2013-12-13 13:23             ` Ingo Molnar
2013-12-13 18:00               ` Kees Cook
2013-12-13 17:58         ` Kees Cook
2013-12-13 18:14           ` Linus Torvalds
2013-12-13 18:37             ` Kees Cook
2013-12-13  5:27     ` Theodore Ts'o
2013-12-13  9:32       ` Jiri Kosina
2013-12-13 18:07       ` Kees Cook
2013-12-13  9:12     ` Vegard Nossum
2013-12-13 13:27       ` Ingo Molnar
2013-12-13  8:20   ` Vegard Nossum
2013-12-14 23:59   ` Ryan Mallon
2013-12-13 12:54 ` Ingo Molnar
2013-12-16  5:17 ` Sasha Levin
2013-12-19  6:14 ` David Rientjes

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