From: Alan Cox <alan@redhat.com>
To: Eric Paris <eparis@redhat.com>
Cc: linux-kernel@vger.kernel.org, jmorris@namei.org, alan@redhat.com,
chrisw@redhat.com, akpm@linux-foundation.org,
linux-security-module@vger.kernel.org, solar@openwall.com,
wtarreau@hera.kernel.org
Subject: Re: [PATCH] VM/Security: add security hook to do_brk
Date: Tue, 4 Dec 2007 11:43:58 -0500 [thread overview]
Message-ID: <20071204164358.GA18050@devserv.devel.redhat.com> (raw)
In-Reply-To: <1196784415.2912.164.camel@localhost.localdomain>
On Tue, Dec 04, 2007 at 11:06:55AM -0500, Eric Paris wrote:
> Given a specifically crafted binary do_brk() can be used to get low
> pages available in userspace virtually memory and can thus be used to
> circumvent the mmap_min_addr low memory protection. Add security checks
> in do_brk().
>
> Signed-off-by: Eric Paris <eparis@redhat.com>
ACK
next prev parent reply other threads:[~2007-12-04 16:44 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-12-04 16:06 [PATCH] VM/Security: add security hook to do_brk Eric Paris
2007-12-04 16:43 ` Alan Cox [this message]
2007-12-05 12:15 ` James Morris
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