From: Jeremy Fitzhardinge <jeremy@goop.org>
To: David Wagner <daw-usenet@taverner.cs.berkeley.edu>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Really good idea to allow mmap(0, FIXED)?
Date: Thu, 05 Oct 2006 21:34:13 -0700 [thread overview]
Message-ID: <4525DCC5.40101@goop.org> (raw)
In-Reply-To: <eg4624$be$1@taverner.cs.berkeley.edu>
David Wagner wrote:
> Is this right? Have I correctly understood the issue?
More or less, though a simpler example would be something like:
if (thing->uid == 0)
do_magic();
and if "thing" happens to be in userspace (NULL or otherwise) then the
user can control this test. So the answer is that the kernel shouldn't
be looking at uninitialized pointers.
J
next prev parent reply other threads:[~2006-10-06 4:34 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-10-05 18:59 Really good idea to allow mmap(0, FIXED)? Michael Buesch
2006-10-05 19:50 ` linux-os (Dick Johnson)
2006-10-06 14:40 ` Michael Buesch
2006-10-05 21:58 ` Alan Cox
2006-10-06 14:44 ` Michael Buesch
2006-10-07 11:23 ` Pavel Machek
2006-10-05 23:55 ` David Wagner
2006-10-06 4:34 ` Jeremy Fitzhardinge [this message]
2006-10-06 5:39 ` Jan Engelhardt
2006-10-06 19:47 ` David Wagner
2006-10-06 7:25 ` Arjan van de Ven
2006-10-06 10:36 ` Mikael Pettersson
2006-10-06 11:20 ` Arjan van de Ven
2006-10-06 19:43 ` David Wagner
2006-10-08 0:22 ` Jeremy Fitzhardinge
2006-10-08 2:03 ` David Wagner
2006-10-08 19:18 ` Michael Buesch
2006-10-06 14:55 ` Michael Buesch
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