From owner-svn-src-stable@FreeBSD.ORG  Wed Jun  4 18:21:33 2014
Return-Path: <owner-svn-src-stable@FreeBSD.ORG>
Delivered-To: svn-src-stable@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115])
 (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits))
 (No client certificate requested)
 by hub.freebsd.org (Postfix) with ESMTPS id 9889ED6A;
 Wed,  4 Jun 2014 18:21:33 +0000 (UTC)
Received: from svn.freebsd.org (svn.freebsd.org
 [IPv6:2001:1900:2254:2068::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 86728207B;
 Wed,  4 Jun 2014 18:21:33 +0000 (UTC)
Received: from svn.freebsd.org ([127.0.1.70])
 by svn.freebsd.org (8.14.8/8.14.8) with ESMTP id s54ILXmR042542;
 Wed, 4 Jun 2014 18:21:33 GMT (envelope-from jhb@svn.freebsd.org)
Received: (from jhb@localhost)
 by svn.freebsd.org (8.14.8/8.14.8/Submit) id s54ILXna042541;
 Wed, 4 Jun 2014 18:21:33 GMT (envelope-from jhb@svn.freebsd.org)
Message-Id: <201406041821.s54ILXna042541@svn.freebsd.org>
From: John Baldwin <jhb@FreeBSD.org>
Date: Wed, 4 Jun 2014 18:21:33 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
 svn-src-stable@freebsd.org, svn-src-stable-10@freebsd.org
Subject: svn commit: r267074 - stable/10/sys/dev/aac
X-SVN-Group: stable-10
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: 2.1.18
Precedence: list
List-Id: SVN commit messages for all the -stable branches of the src tree
 <svn-src-stable.freebsd.org>
List-Unsubscribe: <http://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: <http://lists.freebsd.org/mailman/listinfo/svn-src-stable>,
 <mailto:svn-src-stable-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 04 Jun 2014 18:21:33 -0000

Author: jhb
Date: Wed Jun  4 18:21:33 2014
New Revision: 267074
URL: http://svnweb.freebsd.org/changeset/base/267074

Log:
  MFC 266281:
  Clear the data buffer length field when freeing a command structure so that
  it doesn't leak through when the command structure is reused for a user
  command without a data buffer.
  
  PR:		189668

Modified:
  stable/10/sys/dev/aac/aac.c
Directory Properties:
  stable/10/   (props changed)

Modified: stable/10/sys/dev/aac/aac.c
==============================================================================
--- stable/10/sys/dev/aac/aac.c	Wed Jun  4 18:19:10 2014	(r267073)
+++ stable/10/sys/dev/aac/aac.c	Wed Jun  4 18:21:33 2014	(r267074)
@@ -1408,6 +1408,7 @@ aac_release_command(struct aac_command *
 	fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
 
 	/* (re)initialize the command/FIB */
+	cm->cm_datalen = 0;
 	cm->cm_sgtable = NULL;
 	cm->cm_flags = 0;
 	cm->cm_complete = NULL;