{"id":2224984,"url":"http://patchwork.ozlabs.org/api/patches/2224984/?format=json","web_url":"http://patchwork.ozlabs.org/project/netfilter-devel/patch/20260420061924.69302-3-pablo@netfilter.org/","project":{"id":26,"url":"http://patchwork.ozlabs.org/api/projects/26/?format=json","name":"Netfilter Development","link_name":"netfilter-devel","list_id":"netfilter-devel.vger.kernel.org","list_email":"netfilter-devel@vger.kernel.org","web_url":null,"scm_url":null,"webscm_url":null,"list_archive_url":"","list_archive_url_format":"","commit_url_format":""},"msgid":"<20260420061924.69302-3-pablo@netfilter.org>","list_archive_url":null,"date":"2026-04-20T06:19:23","name":"[nf,v7,3/4] netfilter: nf_tables: join hook list via splice_list_rcu() in commit phase","commit_ref":null,"pull_url":null,"state":"changes-requested","archived":false,"hash":"6e9e6b82bf3b8bb393bc45041bb87c8e62f2ac94","submitter":{"id":1315,"url":"http://patchwork.ozlabs.org/api/people/1315/?format=json","name":"Pablo Neira Ayuso","email":"pablo@netfilter.org"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/netfilter-devel/patch/20260420061924.69302-3-pablo@netfilter.org/mbox/","series":[{"id":500557,"url":"http://patchwork.ozlabs.org/api/series/500557/?format=json","web_url":"http://patchwork.ozlabs.org/project/netfilter-devel/list/?series=500557","date":"2026-04-20T06:19:23","name":"[nf,v7,1/4] netfilter: nf_tables: use list_del_rcu for netlink hooks","version":7,"mbox":"http://patchwork.ozlabs.org/series/500557/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2224984/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2224984/checks/","tags":{},"related":[],"headers":{"Return-Path":"\n ","X-Original-To":["incoming@patchwork.ozlabs.org","netfilter-devel@vger.kernel.org"],"Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=netfilter.org header.i=@netfilter.org\n header.a=rsa-sha256 header.s=2025 header.b=p+LKtXLl;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c04:e001:36c::12fc:5321; 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t=1776665975; c=relaxed/simple;\n\tbh=/ISfDvQ6Ziwxxnw2RwrHn4iWRttkkq+owJBmFm8DZAw=;\n\th=From:To:Subject:Date:Message-ID:In-Reply-To:References:\n\t MIME-Version;\n b=cmIhWzLna6K9P+/BC6B3TKNUHTY4SPp+llkTEgNVtyINFf2PGwDXbXz6H80p9Y+9A0QfTM21nHqwV8iNoflmqboaxBLlsQTITqSmg9fu0P83geneoAXUapvcXp0ifyP5Z4dfjFnZEca+fL8HJaiU120az3s95LkZ4UrP/6NULVg=","ARC-Authentication-Results":"i=1; smtp.subspace.kernel.org;\n dmarc=none (p=none dis=none) header.from=netfilter.org;\n spf=pass smtp.mailfrom=netfilter.org;\n dkim=pass (2048-bit key) header.d=netfilter.org header.i=@netfilter.org\n header.b=p+LKtXLl; arc=none smtp.client-ip=217.70.190.124","DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/relaxed; d=netfilter.org;\n\ts=2025; t=1776665972;\n\tbh=aJXCJapzwqFT+lx7dDN5kZ7VyZWMoGu7cjrH+fjFC18=;\n\th=From:To:Subject:Date:In-Reply-To:References:From;\n\tb=p+LKtXLlg9rm+V6sQwEQfYHyV5Ff1cRPXxMsfyG2E2gXFcFVmGumcXgOURY36RyjY\n\t m4s93SCnsjYjzJHeXuFEg5HFLIw0SdBSR/iF2wT50qDTRf6eD6ZNWnexz5dgC80a2g\n\t HA8dc01bBBpieY3Hg4YzC4i1QunmW6j+aFZkPCBxcIYJVTtywKm2XolIQQcO38Fsop\n\t X5x7PbcpvEDloAx8rzqVozcj4XD+WzI2hkqptxIecrg9EJXnWhEY1QJGelkiYWrTw2\n\t W7Q+rJ6Ke34ZL74ZtPmUj0f2M4nydo+ih4nB2346FmmJaBaiakQAdPvlp4cIpUUVoT\n\t LszOQJWG6sZPg==","From":"Pablo Neira Ayuso ","To":"netfilter-devel@vger.kernel.org","Subject":"[PATCH nf,v7 3/4] netfilter: nf_tables: join hook list via\n splice_list_rcu() in commit phase","Date":"Mon, 20 Apr 2026 08:19:23 +0200","Message-ID":"<20260420061924.69302-3-pablo@netfilter.org>","X-Mailer":"git-send-email 2.47.3","In-Reply-To":"<20260420061924.69302-1-pablo@netfilter.org>","References":"<20260420061924.69302-1-pablo@netfilter.org>","Precedence":"bulk","X-Mailing-List":"netfilter-devel@vger.kernel.org","List-Id":"","List-Subscribe":"","List-Unsubscribe":"","MIME-Version":"1.0","Content-Transfer-Encoding":"8bit"},"content":"Publish new hooks in the list into the basechain/flowtable using\nsplice_list_rcu() to ensure netlink dump list traversal via rcu is safe\nwhile concurrent ruleset update is going on.\n\nFixes: 78d9f48f7f44 (\"netfilter: nf_tables: add devices to existing flowtable\")\nFixes: b9703ed44ffb (\"netfilter: nf_tables: support for adding new devices to an existing netdev chain\")\nSigned-off-by: Pablo Neira Ayuso \n---\n net/netfilter/nf_tables_api.c | 8 ++++----\n 1 file changed, 4 insertions(+), 4 deletions(-)","diff":"diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c\nindex 07e151245765..ae10116af923 100644\n--- a/net/netfilter/nf_tables_api.c\n+++ b/net/netfilter/nf_tables_api.c\n@@ -10838,8 +10838,8 @@ static int nf_tables_commit(struct net *net, struct sk_buff *skb)\n \t\t\t\tnft_chain_commit_update(nft_trans_container_chain(trans));\n \t\t\t\tnf_tables_chain_notify(&ctx, NFT_MSG_NEWCHAIN,\n \t\t\t\t\t\t &nft_trans_chain_hooks(trans));\n-\t\t\t\tlist_splice(&nft_trans_chain_hooks(trans),\n-\t\t\t\t\t &nft_trans_basechain(trans)->hook_list);\n+\t\t\t\tlist_splice_rcu(&nft_trans_chain_hooks(trans),\n+\t\t\t\t\t\t&nft_trans_basechain(trans)->hook_list);\n \t\t\t\t/* trans destroyed after rcu grace period */\n \t\t\t} else {\n \t\t\t\tnft_chain_commit_drop_policy(nft_trans_container_chain(trans));\n@@ -10968,8 +10968,8 @@ static int nf_tables_commit(struct net *net, struct sk_buff *skb)\n \t\t\t\t\t\t\t nft_trans_flowtable(trans),\n \t\t\t\t\t\t\t &nft_trans_flowtable_hooks(trans),\n \t\t\t\t\t\t\t NFT_MSG_NEWFLOWTABLE);\n-\t\t\t\tlist_splice(&nft_trans_flowtable_hooks(trans),\n-\t\t\t\t\t &nft_trans_flowtable(trans)->hook_list);\n+\t\t\t\tlist_splice_rcu(&nft_trans_flowtable_hooks(trans),\n+\t\t\t\t\t\t&nft_trans_flowtable(trans)->hook_list);\n \t\t\t} else {\n \t\t\t\tnft_clear(net, nft_trans_flowtable(trans));\n \t\t\t\tnf_tables_flowtable_notify(&ctx,\n","prefixes":["nf","v7","3/4"]}