linux-kernel - Re: [patch] remove MNT_NOEXEC check for PROT

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Date:	Tue, 03 Oct 2006 20:42:14 +0200
From:	Arjan van de Ven <arjan@...radead.org>
To:	Stas Sergeev <stsp@...et.ru>
Cc:	Linux kernel <linux-kernel@...r.kernel.org>,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Hugh Dickins <hugh@...itas.com>,
	Ulrich Drepper <drepper@...hat.com>, Valdis.Kletnieks@...edu
Subject: Re: [patch] remove MNT_NOEXEC check for PROT_EXEC mmaps

On Tue, 2006-10-03 at 22:40 +0400, Stas Sergeev wrote:
> Hello.
> 
> Arjan van de Ven wrote:
> > you do "noexec" and then complain that executing (!!) windows binaries
> > from that gets more of a problem!
> It only became slower and more memory-consuming -
> is this really what you wanted to achieve?
> Also, you haven't commented on the other points,
> namely, the problem of getting a shm with an exec

then don't put noexec on /dev/shm.

> permission, and the current limitation of an ld.so
> fix (and the solution to it).

ld.so fix is phony. Really; I can always put an "unfixed" ld.so there
and use it as user. 

-- 
if you want to mail me at work (you don't), use arjan (at) linux.intel.com

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