From: Marcus Meissner <meissner@suse.de>
To: Linus Torvalds <torvalds@osdl.org>
Cc: Hugh Dickins <hugh@veritas.com>, Andrew Morton <akpm@osdl.org>,
Andi Kleen <ak@suse.de>, Ingo Molnar <mingo@elte.hu>,
Dave Jones <davej@codemonkey.org.uk>,
Arjan van de Ven <arjan@linux.intel.com>,
linux-kernel@vger.kernel.org
Subject: Re: revert PIE randomization?
Date: Sat, 6 Jan 2007 22:08:26 +0100 [thread overview]
Message-ID: <20070106210826.GA31518@suse.de> (raw)
In-Reply-To: <Pine.LNX.4.64.0701061303320.3661@woody.osdl.org>
On Sat, Jan 06, 2007 at 01:04:02PM -0800, Linus Torvalds wrote:
>
>
> On Sat, 6 Jan 2007, Hugh Dickins wrote:
> >
> > Isn't that randomization, anywhere from 0x10000 to ELF_ET_DYN_BASE,
> > sure to place the ET_DYN from time to time just where the comment says
> > it's trying to avoid? I assume that somehow results in the error reported.
>
> Hmm.. It's certainly the case that it would appear that the randomization
> might put the binary just under the heap, and cause conflicts with brk
> and the mmap heap.
>
> You're right. I'm inclined to just revert it, modulo some comments from
> others. Marcus?
After thinking about this, yes.
I would rather have a working range used here (perhaps like Hugh suggested),
but feel free to revert the original patch if you are not confident with it.
Ciao, Marcus
next prev parent reply other threads:[~2007-01-06 21:08 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-01-06 20:11 revert PIE randomization? Hugh Dickins
2007-01-06 21:04 ` Linus Torvalds
2007-01-06 21:08 ` Marcus Meissner [this message]
2007-01-06 21:45 ` Ingo Molnar
2007-01-06 21:54 ` Marcus Meissner
2007-01-06 22:42 ` David Woodhouse
2007-03-21 18:17 ` Kees Cook
2007-03-21 20:01 ` Hugh Dickins
2007-03-26 20:17 ` Kees Cook
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