From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756048Ab3LRV6V (ORCPT ); Wed, 18 Dec 2013 16:58:21 -0500 Received: from mail.linuxfoundation.org ([140.211.169.12]:36101 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753337Ab3LRVMd (ORCPT ); Wed, 18 Dec 2013 16:12:33 -0500 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Dan Carpenter , Jie Liu , Chris Mason Subject: [PATCH 3.10 56/78] Btrfs: fix access_ok() check in btrfs_ioctl_send() Date: Wed, 18 Dec 2013 13:11:24 -0800 Message-Id: <20131218211113.476465684@linuxfoundation.org> X-Mailer: git-send-email 1.8.5.1.163.gd7aced9 In-Reply-To: <20131218211111.903835960@linuxfoundation.org> References: <20131218211111.903835960@linuxfoundation.org> User-Agent: quilt/0.61-1 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.10-stable review patch. If anyone has any objections, please let me know. ------------------ From: Dan Carpenter commit 700ff4f095d78af0998953e922e041d75254518b upstream. The closing parenthesis is in the wrong place. We want to check "sizeof(*arg->clone_sources) * arg->clone_sources_count" instead of "sizeof(*arg->clone_sources * arg->clone_sources_count)". Signed-off-by: Dan Carpenter Reviewed-by: Jie Liu Signed-off-by: Chris Mason Signed-off-by: Greg Kroah-Hartman --- fs/btrfs/send.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/fs/btrfs/send.c +++ b/fs/btrfs/send.c @@ -4623,8 +4623,8 @@ long btrfs_ioctl_send(struct file *mnt_f } if (!access_ok(VERIFY_READ, arg->clone_sources, - sizeof(*arg->clone_sources * - arg->clone_sources_count))) { + sizeof(*arg->clone_sources) * + arg->clone_sources_count)) { ret = -EFAULT; goto out; }