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From: Samium Gromoff <_deepfire@feelingofgreen.ru>
To: Jakub Jelinek <jakub@redhat.com>
Cc: Samium Gromoff <_deepfire@feelingofgreen.ru>,
	Alan <alan@lxorguk.ukuu.org.uk>,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/2] Define the EF_AS_NO_RANDOM e_flag bit
Date: Wed, 24 Jan 2007 00:54:03 +0300	[thread overview]
Message-ID: <873b618l50.wl@betelheise.deep.net> (raw)
In-Reply-To: <20070123211612.GJ29911@devserv.devel.redhat.com>

At Tue, 23 Jan 2007 16:16:12 -0500,
Jakub Jelinek wrote:
> 
> On Wed, Jan 24, 2007 at 12:06:45AM +0300, Samium Gromoff wrote:
> > Should we introduce per-arch asm/elf.h files to hold the relevant flag definitions then?
> 
> On some architectures there are no bits left.  On others you'd need to go
> through whomever maintains the relevant psABI to get a bit officially
> allocated.  Really, it is very bad idea to use e_flags for this.

Currently arch_align_stack() and mmap_base() perform randomisation only on x86
and x86_64, so it is only two architectures anyway...

> If all you care about is running setuid LISP programs, you'd much better put
> your energy into fixing the buggy ELF dumper in it.
> 
> 	Jakub

regards, Samium Gromoff

  reply	other threads:[~2007-01-23 21:54 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-01-21 23:23 [PATCH] Undo some of the pseudo-security madness Samium Gromoff
2007-01-21 23:34 ` David Wagner
2007-01-22  0:36   ` Kyle Moffett
2007-01-22  1:53     ` Samium Gromoff
2007-02-24  9:40       ` Florian Weimer
2007-02-24 13:33         ` Samium Gromoff
2007-02-24 13:49           ` Florian Weimer
2007-01-22 15:20 ` Valdis.Kletnieks
2007-01-22 17:39   ` Samium Gromoff
2007-01-23  8:48     ` Pavel Machek
2007-01-23 14:03       ` Samium Gromoff
2007-01-23 15:41         ` Alan
2007-01-23 20:21           ` [PATCH 0/2] Mechanism to turn of ASR on a per-ELF binary basis Samium Gromoff
2007-01-23 20:28           ` [PATCH 1/2] Define the EF_AS_NO_RANDOM e_flag bit Samium Gromoff
2007-01-23 20:50             ` Jakub Jelinek
2007-01-23 21:06               ` Samium Gromoff
2007-01-23 21:16                 ` Jakub Jelinek
2007-01-23 21:54                   ` Samium Gromoff [this message]
2007-01-23 23:21                   ` Samium Gromoff
2007-01-24 17:08                     ` Pavel Machek
2007-01-29  1:18             ` Arjan van de Ven
2007-01-23 20:31           ` [PATCH 2/2] Make the EF_AS_NO_RANDOM e_flag bit disable PF_RANDOMIZE Samium Gromoff
2007-02-24  9:51           ` [PATCH] Undo some of the pseudo-security madness Florian Weimer
2007-02-24 13:36             ` Samium Gromoff
2007-01-31  9:59         ` Arjan van de Ven
2007-02-01  8:05           ` Florian Weimer

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