From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:49967 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932615AbcIEOaM (ORCPT ); Mon, 5 Sep 2016 10:30:12 -0400 Subject: Patch "USB: serial: mos7840: fix non-atomic allocation in write path" has been added to the 4.7-stable tree To: khoroshilov@ispras.ru, gregkh@linuxfoundation.org, johan@kernel.org Cc: , From: Date: Mon, 05 Sep 2016 16:29:36 +0200 Message-ID: <14730857766753@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 USB: serial: mos7840: fix non-atomic allocation in write path to the 4.7-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: usb-serial-mos7840-fix-non-atomic-allocation-in-write-path.patch and it can be found in the queue-4.7 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From 3b7c7e52efda0d4640060de747768360ba70a7c0 Mon Sep 17 00:00:00 2001 From: Alexey Khoroshilov Date: Fri, 12 Aug 2016 01:05:09 +0300 Subject: USB: serial: mos7840: fix non-atomic allocation in write path From: Alexey Khoroshilov commit 3b7c7e52efda0d4640060de747768360ba70a7c0 upstream. There is an allocation with GFP_KERNEL flag in mos7840_write(), while it may be called from interrupt context. Follow-up for commit 191252837626 ("USB: kobil_sct: fix non-atomic allocation in write path") Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/mos7840.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/drivers/usb/serial/mos7840.c +++ b/drivers/usb/serial/mos7840.c @@ -1340,8 +1340,8 @@ static int mos7840_write(struct tty_stru } if (urb->transfer_buffer == NULL) { - urb->transfer_buffer = - kmalloc(URB_TRANSFER_BUFFER_SIZE, GFP_KERNEL); + urb->transfer_buffer = kmalloc(URB_TRANSFER_BUFFER_SIZE, + GFP_ATOMIC); if (!urb->transfer_buffer) goto exit; } Patches currently in stable-queue which might be from khoroshilov@ispras.ru are queue-4.7/usb-serial-mos7840-fix-non-atomic-allocation-in-write-path.patch queue-4.7/usb-serial-mos7720-fix-non-atomic-allocation-in-write-path.patch