|
Neohapsis is currently accepting applications for employment. For more information, please visit our website www.neohapsis.com or email hr@neohapsis.com |
Re: mmap(), security and /dev/zero
From: Daniel Carosone (dan
geek.com.au)
Date: Wed Jun 23 2004 - 20:11:47 CDT
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
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.
--
Dan.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.4 (NetBSD)
iD8DBQFA2ipTEAVxvV4N66cRAsNAAJ46i1SvMEccq21lPS/EYmI9TE01kQCgpVRz
Wa/ByebrIv0rbYHf+C8lYBU=
=vNPK
-----END PGP SIGNATURE-----
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]