From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:33518 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751446AbcDPRLB (ORCPT ); Sat, 16 Apr 2016 13:11:01 -0400 Subject: Patch "usbnet: cleanup after bind() in probe()" has been added to the 4.4-stable tree To: oneukum@suse.com, ONeukum@suse.com, davem@davemloft.net, gregkh@linuxfoundation.org Cc: , From: Date: Sat, 16 Apr 2016 10:07:37 -0700 Message-ID: <1460826457131206@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 usbnet: cleanup after bind() in probe() to the 4.4-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: usbnet-cleanup-after-bind-in-probe.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From foo@baz Sat Apr 16 10:02:53 PDT 2016 From: Oliver Neukum Date: Mon, 7 Mar 2016 11:31:10 +0100 Subject: usbnet: cleanup after bind() in probe() From: Oliver Neukum [ Upstream commit 1666984c8625b3db19a9abc298931d35ab7bc64b ] In case bind() works, but a later error forces bailing in probe() in error cases work and a timer may be scheduled. They must be killed. This fixes an error case related to the double free reported in http://www.spinics.net/lists/netdev/msg367669.html and needs to go on top of Linus' fix to cdc-ncm. Signed-off-by: Oliver Neukum Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- drivers/net/usb/usbnet.c | 7 +++++++ 1 file changed, 7 insertions(+) --- a/drivers/net/usb/usbnet.c +++ b/drivers/net/usb/usbnet.c @@ -1766,6 +1766,13 @@ out3: if (info->unbind) info->unbind (dev, udev); out1: + /* subdrivers must undo all they did in bind() if they + * fail it, but we may fail later and a deferred kevent + * may trigger an error resubmitting itself and, worse, + * schedule a timer. So we kill it all just in case. + */ + cancel_work_sync(&dev->kevent); + del_timer_sync(&dev->delay); free_netdev(net); out: return status; Patches currently in stable-queue which might be from oneukum@suse.com are queue-4.4/usbnet-cleanup-after-bind-in-probe.patch