From: Ingo Molnar <mingo@elte.hu>
To: Linus Torvalds <torvalds@osdl.org>
Cc: pageexec@freemail.hu, Chuck Ebbert <76306.1226@compuserve.com>,
linux-kernel <linux-kernel@vger.kernel.org>,
Arjan van de Ven <arjan@infradead.org>
Subject: Re: [PATCH] i386: clean up user_mode() use
Date: Mon, 3 Jul 2006 06:36:11 +0200 [thread overview]
Message-ID: <20060703043611.GA12438@elte.hu> (raw)
In-Reply-To: <Pine.LNX.4.64.0607021433320.12404@g5.osdl.org>
* Linus Torvalds <torvalds@osdl.org> wrote:
> On Sun, 2 Jul 2006, pageexec@freemail.hu wrote:
> >
> > the fact that arch *independent* code makes use of user_mode() was
> > apparently lost on you.
>
> Argh. Yes, there's one single use, apparently.
>
> Sad.
but even for new non-generic per-arch code a couple of security holes
were introduced due to the existing semantics of user_mode(). So this
indeed changes semantics and it's totally intentional.
so i think we should bite the bullet and should apply this patch. We
have a constant influx of user_mode() using code and as practice has
shown it, people dont really consider the vm86 angle of it.
Ingo
next prev parent reply other threads:[~2006-07-03 4:41 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-07-02 20:10 [PATCH] i386: clean up user_mode() use Chuck Ebbert
2006-07-02 20:42 ` Linus Torvalds
[not found] ` <44A85518.24327.2FBD646A@pageexec.freemail.hu>
2006-07-02 21:36 ` Linus Torvalds
2006-07-03 4:36 ` Ingo Molnar [this message]
[not found] <44A7BE17.23657.2D6F894E@pageexec.freemail.hu>
2006-07-02 13:37 ` Ingo Molnar
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