From owner-freebsd-bugs@freebsd.org  Thu Aug 18 07:56:56 2016
Return-Path: <owner-freebsd-bugs@freebsd.org>
Delivered-To: freebsd-bugs@mailman.ysv.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 by mailman.ysv.freebsd.org (Postfix) with ESMTP id 44A9FBBEA3A
 for <freebsd-bugs@mailman.ysv.freebsd.org>;
 Thu, 18 Aug 2016 07:56:56 +0000 (UTC)
 (envelope-from bugzilla-noreply@freebsd.org)
Received: from kenobi.freebsd.org (kenobi.freebsd.org
 [IPv6:2001:1900:2254:206a::16:76])
 (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
 (Client did not present a certificate)
 by mx1.freebsd.org (Postfix) with ESMTPS id 34A9B1D26
 for <freebsd-bugs@FreeBSD.org>; Thu, 18 Aug 2016 07:56:56 +0000 (UTC)
 (envelope-from bugzilla-noreply@freebsd.org)
Received: from bugs.freebsd.org ([127.0.1.118])
 by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id u7I7ut2S013572
 for <freebsd-bugs@FreeBSD.org>; Thu, 18 Aug 2016 07:56:56 GMT
 (envelope-from bugzilla-noreply@freebsd.org)
From: bugzilla-noreply@freebsd.org
To: freebsd-bugs@FreeBSD.org
Subject: [Bug 211958] Boot overflows when reading loader.conf
Date: Thu, 18 Aug 2016 07:56:55 +0000
X-Bugzilla-Reason: AssignedTo
X-Bugzilla-Type: new
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: Base System
X-Bugzilla-Component: kern
X-Bugzilla-Version: CURRENT
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: Affects Only Me
X-Bugzilla-Who: ecturt@gmail.com
X-Bugzilla-Status: New
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: ---
X-Bugzilla-Assigned-To: freebsd-bugs@FreeBSD.org
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: bug_id short_desc product version rep_platform
 op_sys bug_status bug_severity priority component assigned_to reporter
Message-ID: <bug-211958-8@https.bugs.freebsd.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
X-BeenThere: freebsd-bugs@freebsd.org
X-Mailman-Version: 2.1.22
Precedence: list
List-Id: Bug reports <freebsd-bugs.freebsd.org>
List-Unsubscribe: <https://lists.freebsd.org/mailman/options/freebsd-bugs>,
 <mailto:freebsd-bugs-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-bugs/>
List-Post: <mailto:freebsd-bugs@freebsd.org>
List-Help: <mailto:freebsd-bugs-request@freebsd.org?subject=help>
List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/freebsd-bugs>,
 <mailto:freebsd-bugs-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Thu, 18 Aug 2016 07:56:56 -0000

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D211958

            Bug ID: 211958
           Summary: Boot overflows when reading loader.conf
           Product: Base System
           Version: CURRENT
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: freebsd-bugs@FreeBSD.org
          Reporter: ecturt@gmail.com

There are some overflows when reading loader.conf, for example if you add a
line like:

autoboot aaaaaaaaa...

It will overflow a 256 byte buffer here:

https://github.com/freebsd/freebsd/blob/af3e10e5a78d3af8cef6088748978c6c612=
757f0/sys/boot/common/boot.c#L132

https://github.com/freebsd/freebsd/blob/7fc7d2ed6e06340ab861cd094a78db87215=
ecff3/sys/boot/common/commands.c#L36

This sprintf pattern into command_errbuf seems to be repeated a lot, and sh=
ould
probably be replaced with slprintf.

--=20
You are receiving this mail because:
You are the assignee for the bug.=