From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:38685 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752223AbbJQTst (ORCPT ); Sat, 17 Oct 2015 15:48:49 -0400 Subject: Patch "netfilter: nf_log: wait for rcu grace after logger unregistration" has been added to the 4.1-stable tree To: pablo@netfilter.org, gregkh@linuxfoundation.org Cc: , From: Date: Sat, 17 Oct 2015 12:48:47 -0700 Message-ID: <144511132755227@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 netfilter: nf_log: wait for rcu grace after logger unregistration to the 4.1-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: netfilter-nf_log-wait-for-rcu-grace-after-logger-unregistration.patch and it can be found in the queue-4.1 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From ad5001cc7cdf9aaee5eb213fdee657e4a3c94776 Mon Sep 17 00:00:00 2001 From: Pablo Neira Ayuso Date: Thu, 17 Sep 2015 13:37:00 +0200 Subject: netfilter: nf_log: wait for rcu grace after logger unregistration From: Pablo Neira Ayuso commit ad5001cc7cdf9aaee5eb213fdee657e4a3c94776 upstream. The nf_log_unregister() function needs to call synchronize_rcu() to make sure that the objects are not dereferenced anymore on module removal. Fixes: 5962815a6a56 ("netfilter: nf_log: use an array of loggers instead of list") Signed-off-by: Pablo Neira Ayuso Signed-off-by: Greg Kroah-Hartman --- net/netfilter/nf_log.c | 1 + 1 file changed, 1 insertion(+) --- a/net/netfilter/nf_log.c +++ b/net/netfilter/nf_log.c @@ -113,6 +113,7 @@ void nf_log_unregister(struct nf_logger for (i = 0; i < NFPROTO_NUMPROTO; i++) RCU_INIT_POINTER(loggers[i][logger->type], NULL); mutex_unlock(&nf_log_mutex); + synchronize_rcu(); } EXPORT_SYMBOL(nf_log_unregister); Patches currently in stable-queue which might be from pablo@netfilter.org are queue-4.1/netfilter-nft_compat-skip-family-comparison-in-case-of-nfproto_unspec.patch queue-4.1/netfilter-nf_conntrack-support-expectations-in-different-zones.patch queue-4.1/netfilter-nf_log-wait-for-rcu-grace-after-logger-unregistration.patch queue-4.1/netfilter-nftables-do-not-run-chains-in-the-wrong-network-namespace.patch queue-4.1/netfilter-ctnetlink-put-back-references-to-master-ct-and-expect-objects.patch queue-4.1/netfilter-nfnetlink-work-around-wrong-endianess-in-res_id-field.patch queue-4.1/netfilter-nf_log-don-t-zap-all-loggers-on-unregister.patch queue-4.1/netfilter-nf_tables-use-32-bit-addressing-register-from-nft_type_to_reg.patch