From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:34756 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934633AbcKJPtK (ORCPT ); Thu, 10 Nov 2016 10:49:10 -0500 Subject: Patch "packet: call fanout_release, while UNREGISTERING a netdev" has been added to the 4.8-stable tree To: anoob.soman@citrix.com, davem@davemloft.net, gregkh@linuxfoundation.org Cc: , From: Date: Thu, 10 Nov 2016 16:47:34 +0100 Message-ID: <1478792854988@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 packet: call fanout_release, while UNREGISTERING a netdev to the 4.8-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: packet-call-fanout_release-while-unregistering-a-netdev.patch and it can be found in the queue-4.8 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From foo@baz Thu Nov 10 16:43:03 CET 2016 From: Anoob Soman Date: Wed, 5 Oct 2016 15:12:54 +0100 Subject: packet: call fanout_release, while UNREGISTERING a netdev From: Anoob Soman [ Upstream commit 6664498280cf17a59c3e7cf1a931444c02633ed1 ] If a socket has FANOUT sockopt set, a new proto_hook is registered as part of fanout_add(). When processing a NETDEV_UNREGISTER event in af_packet, __fanout_unlink is called for all sockets, but prot_hook which was registered as part of fanout_add is not removed. Call fanout_release, on a NETDEV_UNREGISTER, which removes prot_hook and removes fanout from the fanout_list. This fixes BUG_ON(!list_empty(&dev->ptype_specific)) in netdev_run_todo() Signed-off-by: Anoob Soman Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- net/packet/af_packet.c | 1 + 1 file changed, 1 insertion(+) --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -3952,6 +3952,7 @@ static int packet_notifier(struct notifi } if (msg == NETDEV_UNREGISTER) { packet_cached_dev_reset(po); + fanout_release(sk); po->ifindex = -1; if (po->prot_hook.dev) dev_put(po->prot_hook.dev); Patches currently in stable-queue which might be from anoob.soman@citrix.com are queue-4.8/packet-call-fanout_release-while-unregistering-a-netdev.patch