From: Chris Wright <chrisw@sous-sol.org>
To: Eric Paris <eparis@redhat.com>
Cc: Alan Cox <alan@redhat.com>, James Morris <jmorris@namei.org>,
linux-kernel@vger.kernel.org, selinux@tycho.nsa.gov,
drepper@redhat.com, roland@redhat.com, arjan@infradead.org,
mingo@elte.hu, viro@zeniv.linux.org.uk, chrisw@redhat.com,
sds@tycho.nsa.gov, sgrubb@redhat.com
Subject: Re: [PATCH] Protection for exploiting null dereference using mmap
Date: Wed, 6 Jun 2007 11:06:31 -0700 [thread overview]
Message-ID: <20070606180631.GP3723@sequoia.sous-sol.org> (raw)
In-Reply-To: <1181111433.3978.48.camel@localhost.localdomain>
* Eric Paris (eparis@redhat.com) wrote:
> On Tue, 2007-06-05 at 17:16 -0400, Alan Cox wrote:
> > On Tue, Jun 05, 2007 at 05:00:51PM -0400, James Morris wrote:
> > > This should be an unsigned long.
> > >
> > > I wonder if the default should be for this value to be zero (i.e. preserve
> > > existing behavior). It could break binaries, albeit potentially insecure
> >
> > Agreed - DOSemu type apps and lrmi need to map at zero for vm86
>
> And so it shall be!
>
> Signed-off-by: Eric Paris <eparis@redhat.com>
With James' fix and real changelog ;-)
Acked-by: Chris Wright <chrisw@sous-sol.org>
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WARNING: multiple messages have this Message-ID (diff)
From: Chris Wright <chrisw@sous-sol.org>
To: Eric Paris <eparis@redhat.com>
Cc: Alan Cox <alan@redhat.com>, James Morris <jmorris@namei.org>,
linux-kernel@vger.kernel.org, selinux@tycho.nsa.gov,
drepper@redhat.com, roland@redhat.com, arjan@infradead.org,
mingo@elte.hu, viro@zeniv.linux.org.uk, chrisw@redhat.com,
sds@tycho.nsa.gov, sgrubb@redhat.com
Subject: Re: [PATCH] Protection for exploiting null dereference using mmap
Date: Wed, 6 Jun 2007 11:06:31 -0700 [thread overview]
Message-ID: <20070606180631.GP3723@sequoia.sous-sol.org> (raw)
In-Reply-To: <1181111433.3978.48.camel@localhost.localdomain>
* Eric Paris (eparis@redhat.com) wrote:
> On Tue, 2007-06-05 at 17:16 -0400, Alan Cox wrote:
> > On Tue, Jun 05, 2007 at 05:00:51PM -0400, James Morris wrote:
> > > This should be an unsigned long.
> > >
> > > I wonder if the default should be for this value to be zero (i.e. preserve
> > > existing behavior). It could break binaries, albeit potentially insecure
> >
> > Agreed - DOSemu type apps and lrmi need to map at zero for vm86
>
> And so it shall be!
>
> Signed-off-by: Eric Paris <eparis@redhat.com>
With James' fix and real changelog ;-)
Acked-by: Chris Wright <chrisw@sous-sol.org>
next prev parent reply other threads:[~2007-06-06 18:06 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-30 21:48 [PATCH] SELinux protection for exploiting null dereference using mmap Eric Paris
2007-05-31 0:07 ` James Morris
2007-05-31 5:46 ` Eric Paris
2007-05-31 13:45 ` James Morris
2007-05-31 14:45 ` Stephen Smalley
[not found] ` <465EE1C9.3020809@redhat.com>
2007-05-31 15:07 ` Stephen Smalley
2007-05-31 15:19 ` James Morris
2007-05-31 15:31 ` Stephen Smalley
2007-06-02 2:27 ` Chris Wright
2007-05-31 1:40 ` Chris Wright
[not found] ` <20070603205653.GE25869@devserv.devel.redhat.com>
2007-06-04 13:38 ` Stephen Smalley
2007-06-05 20:34 ` [PATCH] Protection " Eric Paris
2007-06-05 20:34 ` Eric Paris
2007-06-05 21:00 ` James Morris
2007-06-05 21:00 ` James Morris
2007-06-05 21:16 ` Alan Cox
2007-06-05 21:28 ` Eric Paris
2007-06-05 21:28 ` Eric Paris
2007-06-05 22:46 ` H. Peter Anvin
2007-06-07 14:28 ` Pavel Machek
2007-06-06 12:47 ` Stephen Smalley
2007-06-06 12:47 ` Stephen Smalley
2007-06-07 16:58 ` Jan Engelhardt
2007-06-06 6:30 ` Eric Paris
2007-06-06 6:30 ` Eric Paris
2007-06-06 13:21 ` James Morris
2007-06-06 13:21 ` James Morris
2007-06-06 17:30 ` Stephen Smalley
2007-06-06 17:30 ` Stephen Smalley
2007-06-06 18:01 ` James Morris
2007-06-06 18:01 ` James Morris
2007-06-06 18:06 ` Chris Wright [this message]
2007-06-06 18:06 ` Chris Wright
2007-06-20 19:48 ` Adam Jackson
2007-06-05 22:49 ` Chris Wright
2007-06-05 22:49 ` Chris Wright
2007-06-05 22:53 ` Chris Wright
2007-06-05 22:53 ` Chris Wright
2007-06-06 12:12 ` Stephen Smalley
2007-06-06 12:12 ` Stephen Smalley
2007-06-06 9:01 ` Russell Coker
2007-06-06 9:01 ` Russell Coker
2007-06-06 12:18 ` Stephen Smalley
2007-06-06 12:18 ` Stephen Smalley
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