From owner-freebsd-hackers Mon Oct 13 17:42:53 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.7/8.8.7) id RAA06818 for hackers-outgoing; Mon, 13 Oct 1997 17:42:53 -0700 (PDT) (envelope-from owner-freebsd-hackers) Received: from smtp03.primenet.com (smtp03.primenet.com [206.165.5.84]) by hub.freebsd.org (8.8.7/8.8.7) with ESMTP id RAA06813; Mon, 13 Oct 1997 17:42:51 -0700 (PDT) (envelope-from tlambert@usr07.primenet.com) Received: (from daemon@localhost) by smtp03.primenet.com (8.8.7/8.8.7) id RAA29929; Mon, 13 Oct 1997 17:42:51 -0700 (MST) Received: from UNKNOWN(206.165.6.207), claiming to be "usr07.primenet.com" via SMTP by smtp03.primenet.com, id smtpd029915; Tue Oct 14 00:42:43 1997 Received: (from tlambert@localhost) by usr07.primenet.com (8.8.5/8.8.5) id RAA16597; Mon, 13 Oct 1997 17:42:43 -0700 (MST) From: Terry Lambert Message-Id: <199710140042.RAA16597@usr07.primenet.com> Subject: Re: C2 Trusted FreeBSD? To: brian@firehouse.net (Brian Mitchell) Date: Tue, 14 Oct 1997 00:42:39 +0000 (GMT) Cc: petrilli@amber.org, careilly@monoid.cs.tcd.ie, dcarmich@mcs.com, freebsd-hackers@FreeBSD.ORG, freebsd-security@FreeBSD.ORG In-Reply-To: from "Brian Mitchell" at Oct 13, 97 05:15:55 pm X-Mailer: ELM [version 2.4 PL23] Content-Type: text Sender: owner-freebsd-hackers@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk > > Basically, we need to purge all memor when it is allocated, or > > deallocated. > > yah, when we release something back into a system, we have to bzero() the > contents, or something similar. This is interesting. Can you give a small sample program for accessing data from another program? As far as I know, pages are either filled from a swap store (and contain data accessable to you) or zero-filled; I can't think of a way (off the top of my head) to make this not true. Terry Lambert terry@lambert.org --- Any opinions in this posting are my own and not those of my present or previous employers.