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From: "H. Peter Anvin" <hpa@zytor.com>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	security@kernel.org, "Luck, Tony" <tony.luck@intel.com>,
	James Morris <jmorris@namei.org>,
	Mike Waychison <mikew@google.com>,
	Michael Davidson <md@google.com>,
	linux-mm@kvack.org, Ingo Molnar <mingo@redhat.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Mathias Krause <minipli@googlemail.com>,
	Roland McGrath <roland@redhat.com>
Subject: Re: [Security] DoS on x86_64
Date: Thu, 28 Jan 2010 21:29:26 -0800	[thread overview]
Message-ID: <4B627236.1040508@zytor.com> (raw)
In-Reply-To: <alpine.LFD.2.00.1001282040160.3768@localhost.localdomain>

Here is a cleaned-up version of my patches... I pretty much used your
descriptions straight off.  The first one is your original split patch
with my (small) changes folded in, the second one is my removal of
TIF_ABI_PENDING.

The main difference, again, is that my variant sets the personality
*before* calling setup_new_exec().

-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.

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  parent reply	other threads:[~2010-01-29  5:30 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-01-28  7:34 DoS on x86_64 Mathias Krause
2010-01-28  8:18 ` [Security] " Andrew Morton
2010-01-28 15:41   ` H. Peter Anvin
2010-01-28 22:33     ` Linus Torvalds
2010-01-28 22:47       ` Mathias Krause
2010-01-28 22:47       ` H. Peter Anvin
2010-01-28 23:09         ` Linus Torvalds
2010-01-28 23:27           ` H. Peter Anvin
2010-01-28 23:46             ` Linus Torvalds
2010-01-29  4:43             ` Linus Torvalds
2010-01-29  4:43               ` [PATCH 1/2] Split 'flush_old_exec' into two functions Linus Torvalds
2010-01-29  4:47                 ` [PATCH 2/2] x86: get rid of the insane TIF_ABI_PENDING bit Linus Torvalds
2010-01-29  5:17                 ` [PATCH 1/2] Split 'flush_old_exec' into two functions H. Peter Anvin
2010-01-29  5:05               ` [Security] DoS on x86_64 H. Peter Anvin
2010-01-29  5:29               ` H. Peter Anvin [this message]
2010-01-29  5:34                 ` [PATCH 1/2] Split 'flush_old_exec' into two functions H. Peter Anvin
2010-01-29  5:34                   ` [PATCH 2/2] x86: get rid of the insane TIF_ABI_PENDING bit H. Peter Anvin
2010-01-29  5:36                 ` [PATCH 1/2] Split 'flush_old_exec' into two functions H. Peter Anvin
2010-01-29  5:36                   ` [PATCH 2/2] x86: get rid of the insane TIF_ABI_PENDING bit H. Peter Anvin
2010-01-29  5:41                 ` [PATCH 1/2] Split 'flush_old_exec' into two functions H. Peter Anvin
2010-01-29  5:41                   ` [PATCH 2/2] x86: get rid of the insane TIF_ABI_PENDING bit H. Peter Anvin
2010-01-29  5:44                     ` H. Peter Anvin
2010-01-29  6:14                 ` [PATCH 1/2] Split 'flush_old_exec' into two functions H. Peter Anvin
2010-01-29  6:14                 ` [PATCH 2/2] x86: get rid of the insane TIF_ABI_PENDING bit H. Peter Anvin
2010-01-28 23:06       ` [Security] DoS on x86_64 Linus Torvalds
2010-01-28 23:14         ` H. Peter Anvin
2010-01-28 21:31   ` Mathias Krause
2010-01-28 17:10 ` Linus Torvalds
2010-01-28 21:49   ` Mathias Krause
2010-01-28 21:58     ` Linus Torvalds
2010-01-28 22:08       ` Mathias Krause
2010-01-28 22:18         ` Linus Torvalds

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