This is a note to let you know that I've just added the patch titled netfilter: nftables: fix netlink report logic in flowtable and genid to the 5.9-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-nftables-fix-netlink-report-logic-in-flowt.patch and it can be found in the queue-5.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit a6576bc2267b0911403d3d2c2c5a480200ae80bc Author: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx> Date: Thu Oct 22 22:17:49 2020 +0200 netfilter: nftables: fix netlink report logic in flowtable and genid [ Upstream commit dceababac29d1c53cbc1f7ddf6f688d2df01da87 ] The netlink report should be sent regardless the available listeners. Fixes: 84d7fce69388 ("netfilter: nf_tables: export rule-set generation ID") Fixes: 3b49e2e94e6e ("netfilter: nf_tables: add flow table netlink frontend") Signed-off-by: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c index 72f3ee47e478f..1c90bd1fce60c 100644 --- a/net/netfilter/nf_tables_api.c +++ b/net/netfilter/nf_tables_api.c @@ -7076,7 +7076,7 @@ static void nf_tables_flowtable_notify(struct nft_ctx *ctx, GFP_KERNEL); kfree(buf); - if (ctx->report && + if (!ctx->report && !nfnetlink_has_listeners(ctx->net, NFNLGRP_NFTABLES)) return; @@ -7198,7 +7198,7 @@ static void nf_tables_gen_notify(struct net *net, struct sk_buff *skb, audit_log_nfcfg("?:0;?:0", 0, net->nft.base_seq, AUDIT_NFT_OP_GEN_REGISTER, GFP_KERNEL); - if (nlmsg_report(nlh) && + if (!nlmsg_report(nlh) && !nfnetlink_has_listeners(net, NFNLGRP_NFTABLES)) return;