From owner-freebsd-current@FreeBSD.ORG Wed Jun 11 23:35:38 2003 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 179A937B401 for ; Wed, 11 Jun 2003 23:35:38 -0700 (PDT) Received: from obsecurity.dyndns.org (adsl-64-169-104-32.dsl.lsan03.pacbell.net [64.169.104.32]) by mx1.FreeBSD.org (Postfix) with ESMTP id 743BA43FBD for ; Wed, 11 Jun 2003 23:35:37 -0700 (PDT) (envelope-from kris@obsecurity.org) Received: from rot13.obsecurity.org (rot13.obsecurity.org [10.0.0.5]) by obsecurity.dyndns.org (Postfix) with ESMTP id 3145166B9B; Wed, 11 Jun 2003 23:35:37 -0700 (PDT) Received: by rot13.obsecurity.org (Postfix, from userid 1000) id EB768B48; Wed, 11 Jun 2003 23:35:36 -0700 (PDT) Date: Wed, 11 Jun 2003 23:35:36 -0700 From: Kris Kennaway To: Kris Kennaway Message-ID: <20030612063536.GA38014@rot13.obsecurity.org> References: <200306112248.AA655556764@141.com> <20030612045022.GA36033@rot13.obsecurity.org> <20030612051812.GQ48387@mail.evip.pl> <20030612060557.GA37441@rot13.obsecurity.org> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="9jxsPFA5p3P2qPhR" Content-Disposition: inline In-Reply-To: <20030612060557.GA37441@rot13.obsecurity.org> User-Agent: Mutt/1.4.1i cc: Wiktor Niesiobedzki cc: current@freebsd.org Subject: Re: adsl/pppoe no longer connecting on 5.1 X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 12 Jun 2003 06:35:38 -0000 --9jxsPFA5p3P2qPhR Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Wed, Jun 11, 2003 at 11:05:57PM -0700, Kris Kennaway wrote: > It looks like gcc's inline alloca implementation allocates chunks in > larger chunks than the alloca.S implementation does. This (untested) > patch should make the alloca.S behaviour match that of gcc. I suspect that there's a buffer overrun in one of the alloca() buffers in ppp, that is harmless with gcc's inline version because of the extra padding. I haven't spotted it yet though. Kris --9jxsPFA5p3P2qPhR Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.2 (FreeBSD) iD8DBQE+6B84Wry0BWjoQKURAk0UAKDQ1r8dqixFTZ6rv97KTYtYtkUH+gCgxm4+ mY8DGNrQq7aJ+9rlltPka2A= =yUI9 -----END PGP SIGNATURE----- --9jxsPFA5p3P2qPhR--