Subject: Re: mmap(), security and /dev/zero
To: Curt Sampson <email@example.com>
From: Daniel Carosone <firstname.lastname@example.org>
Date: 06/24/2004 11:11:47
Content-Type: text/plain; charset=us-ascii
On Thu, Jun 24, 2004 at 10:01:28AM +0900, Curt Sampson wrote:
> > No, it needs this change to work. Otherwise, potentially, a program
> > executed from a r/o filesystem might be somehow tricked into loading
> > shlibs from a writable path.
> I don't quite understand this. Ought not any page in core backed by a
> page on a noexec filesystem be marked non-executable, regardless of any
> other circumstances?
Hm. Perhaps it ought to be, yes. That's not how I understand it works
currently, though. Nice idea.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.4 (NetBSD)
-----END PGP SIGNATURE-----