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 4.2-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-4.2 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From ad5001cc7cdf9aaee5eb213fdee657e4a3c94776 Mon Sep 17 00:00:00 2001 From: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx> Date: Thu, 17 Sep 2015 13:37:00 +0200 Subject: netfilter: nf_log: wait for rcu grace after logger unregistration From: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx> 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 <pablo@xxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- 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@xxxxxxxxxxxxx are queue-4.2/netfilter-nft_compat-skip-family-comparison-in-case-of-nfproto_unspec.patch queue-4.2/netfilter-conntrack-use-nf_ct_tmpl_free-in-ct-synproxy-error-paths.patch queue-4.2/netfilter-nf_log-wait-for-rcu-grace-after-logger-unregistration.patch queue-4.2/netfilter-bridge-fix-ipv6-packets-not-being-bridged-with-config_ipv6-n.patch queue-4.2/netfilter-nfnetlink-work-around-wrong-endianess-in-res_id-field.patch queue-4.2/netfilter-ipset-fixing-unnamed-union-init.patch queue-4.2/netfilter-nf_log-don-t-zap-all-loggers-on-unregister.patch queue-4.2/netfilter-nf_tables-use-32-bit-addressing-register-from-nft_type_to_reg.patch -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html