From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:33800 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754572AbdERHpI (ORCPT ); Thu, 18 May 2017 03:45:08 -0400 Subject: Patch "Bluetooth: Fix user channel for 32bit userspace on 64bit kernel" has been added to the 4.11-stable tree To: szymon.janc@codecoup.pl, gregkh@linuxfoundation.org, marcel@holtmann.org, marko@runtime.io Cc: , From: Date: Thu, 18 May 2017 09:44:58 +0200 Message-ID: <149509349838250@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled Bluetooth: Fix user channel for 32bit userspace on 64bit kernel to the 4.11-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: bluetooth-fix-user-channel-for-32bit-userspace-on-64bit-kernel.patch and it can be found in the queue-4.11 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From ab89f0bdd63a3721f7cd3f064f39fc4ac7ca14d4 Mon Sep 17 00:00:00 2001 From: Szymon Janc Date: Mon, 24 Apr 2017 18:25:04 -0700 Subject: Bluetooth: Fix user channel for 32bit userspace on 64bit kernel From: Szymon Janc commit ab89f0bdd63a3721f7cd3f064f39fc4ac7ca14d4 upstream. Running 32bit userspace on 64bit kernel results in MSG_CMSG_COMPAT being defined as 0x80000000. This results in sendmsg failure if used from 32bit userspace running on 64bit kernel. Fix this by accounting for MSG_CMSG_COMPAT in flags check in hci_sock_sendmsg. Signed-off-by: Szymon Janc Signed-off-by: Marko Kiiskila Signed-off-by: Marcel Holtmann Signed-off-by: Greg Kroah-Hartman --- net/bluetooth/hci_sock.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/net/bluetooth/hci_sock.c +++ b/net/bluetooth/hci_sock.c @@ -1680,7 +1680,8 @@ static int hci_sock_sendmsg(struct socke if (msg->msg_flags & MSG_OOB) return -EOPNOTSUPP; - if (msg->msg_flags & ~(MSG_DONTWAIT|MSG_NOSIGNAL|MSG_ERRQUEUE)) + if (msg->msg_flags & ~(MSG_DONTWAIT|MSG_NOSIGNAL|MSG_ERRQUEUE| + MSG_CMSG_COMPAT)) return -EINVAL; if (len < 4 || len > HCI_MAX_FRAME_SIZE) Patches currently in stable-queue which might be from szymon.janc@codecoup.pl are queue-4.11/bluetooth-fix-user-channel-for-32bit-userspace-on-64bit-kernel.patch