From owner-svn-src-stable@freebsd.org  Mon Nov  9 11:29:56 2015
Return-Path: <owner-svn-src-stable@freebsd.org>
Delivered-To: svn-src-stable@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 04527A2A4C1;
 Mon,  9 Nov 2015 11:29:56 +0000 (UTC)
 (envelope-from hselasky@FreeBSD.org)
Received: from repo.freebsd.org (repo.freebsd.org
 [IPv6:2610:1c1:1:6068::e6a:0])
 (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 C0B0A180C;
 Mon,  9 Nov 2015 11:29:55 +0000 (UTC)
 (envelope-from hselasky@FreeBSD.org)
Received: from repo.freebsd.org ([127.0.1.37])
 by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id tA9BTsXa052564;
 Mon, 9 Nov 2015 11:29:54 GMT (envelope-from hselasky@FreeBSD.org)
Received: (from hselasky@localhost)
 by repo.freebsd.org (8.15.2/8.15.2/Submit) id tA9BTsYP052563;
 Mon, 9 Nov 2015 11:29:54 GMT (envelope-from hselasky@FreeBSD.org)
Message-Id: <201511091129.tA9BTsYP052563@repo.freebsd.org>
X-Authentication-Warning: repo.freebsd.org: hselasky set sender to
 hselasky@FreeBSD.org using -f
From: Hans Petter Selasky <hselasky@FreeBSD.org>
Date: Mon, 9 Nov 2015 11:29:54 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
 svn-src-stable@freebsd.org, svn-src-stable-8@freebsd.org
Subject: svn commit: r290609 - stable/8/sys/dev/usb/net
X-SVN-Group: stable-8
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
X-BeenThere: svn-src-stable@freebsd.org
X-Mailman-Version: 2.1.20
Precedence: list
List-Id: SVN commit messages for all the -stable branches of the src tree
 <svn-src-stable.freebsd.org>
List-Unsubscribe: <https://lists.freebsd.org/mailman/options/svn-src-stable>, 
 <mailto:svn-src-stable-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/svn-src-stable/>
List-Post: <mailto:svn-src-stable@freebsd.org>
List-Help: <mailto:svn-src-stable-request@freebsd.org?subject=help>
List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/svn-src-stable>,
 <mailto:svn-src-stable-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 09 Nov 2015 11:29:56 -0000

Author: hselasky
Date: Mon Nov  9 11:29:54 2015
New Revision: 290609
URL: https://svnweb.freebsd.org/changeset/base/290609

Log:
  MFC r290441:
  Fix for unaligned IP-header.
  
  The mbuf length fields must be set before m_adj() is called else
  m_adj() will not always adjust the mbuf and an unaligned read
  exception can trigger inside the network stack. This can happen on
  platforms where unaligned reads are not supported. Adjust a length
  check to include the 2-byte ethernet alignment while at it.

Modified:
  stable/8/sys/dev/usb/net/if_cdce.c
Directory Properties:
  stable/8/sys/   (props changed)
  stable/8/sys/dev/   (props changed)
  stable/8/sys/dev/usb/   (props changed)

Modified: stable/8/sys/dev/usb/net/if_cdce.c
==============================================================================
--- stable/8/sys/dev/usb/net/if_cdce.c	Mon Nov  9 11:27:31 2015	(r290608)
+++ stable/8/sys/dev/usb/net/if_cdce.c	Mon Nov  9 11:29:54 2015	(r290609)
@@ -1381,6 +1381,7 @@ cdce_ncm_bulk_read_callback(struct usb_x
 
 			/* check if we have a buffer */
 			if (m) {
+				m->m_len = m->m_pkthdr.len = temp + ETHER_ALIGN;
 				m_adj(m, ETHER_ALIGN);
 
 				usbd_copy_out(pc, offset, m->m_data, temp);