From: Blaisorblade <blaisorblade@yahoo.it>
To: Jeff Dike <jdike@addtoit.com>
Cc: user-mode-linux-devel@lists.sourceforge.net
Subject: Re: [uml-devel] [PATCH] uml: fix pte_mkread setting page read/write
Date: Mon, 19 Feb 2007 18:34:42 +0100 [thread overview]
Message-ID: <200702191834.42237.blaisorblade@yahoo.it> (raw)
In-Reply-To: <11711284362893-git-send-email-blaisorblade@yahoo.it>
On Saturday 10 February 2007 18:27, Paolo 'Blaisorblade' Giarrusso wrote:
> Fix the fact that pte_mkread set _PAGE_RW instead of _PAGE_USER (the logic
> is copied from i386 in most place, so it is really as bad as you're
> thinking).
>
> Thus currently page tables are more permissive than they should.
>
> Such a change may trigger other latent bugs, so be careful with this.
>
> Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Jeff, no answer to this yet? I've just checked and it's not on the patchset
page either.
--
Inform me of my mistakes, so I can add them to my list!
Paolo Giarrusso, aka Blaisorblade
http://www.user-mode-linux.org/~blaisorblade
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next prev parent reply other threads:[~2007-02-19 17:35 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-02-10 17:27 [uml-devel] [PATCH] uml: fix pte_mkread setting page read/write Paolo 'Blaisorblade' Giarrusso
2007-02-19 17:34 ` Blaisorblade [this message]
2007-02-19 19:52 ` Jeff Dike
2007-02-19 21:47 ` Blaisorblade
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