{"id":2223688,"url":"http://patchwork.ozlabs.org/api/1.1/patches/2223688/?format=json","web_url":"http://patchwork.ozlabs.org/project/netfilter-devel/patch/20260416013101.221555-6-pablo@netfilter.org/","project":{"id":26,"url":"http://patchwork.ozlabs.org/api/1.1/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},"msgid":"<20260416013101.221555-6-pablo@netfilter.org>","date":"2026-04-16T01:30:52","name":"[net,05/14] netfilter: nft_osf: restrict it to ipv4","commit_ref":null,"pull_url":null,"state":"superseded","archived":true,"hash":"7adc2fc0c6180009acdaeb5c3fd41c3469d65269","submitter":{"id":1315,"url":"http://patchwork.ozlabs.org/api/1.1/people/1315/?format=json","name":"Pablo Neira Ayuso","email":"pablo@netfilter.org"},"delegate":{"id":11902,"url":"http://patchwork.ozlabs.org/api/1.1/users/11902/?format=json","username":"strlen","first_name":"Florian","last_name":"Westphal","email":"fw@strlen.de"},"mbox":"http://patchwork.ozlabs.org/project/netfilter-devel/patch/20260416013101.221555-6-pablo@netfilter.org/mbox/","series":[{"id":500063,"url":"http://patchwork.ozlabs.org/api/1.1/series/500063/?format=json","web_url":"http://patchwork.ozlabs.org/project/netfilter-devel/list/?series=500063","date":"2026-04-16T01:30:47","name":"[net,01/14] netfilter: nft_fwd_netdev: use recursion counter in neigh egress path","version":1,"mbox":"http://patchwork.ozlabs.org/series/500063/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2223688/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2223688/checks/","tags":{},"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=Uf2eixts;\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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a=rsa-sha256; c=relaxed/relaxed; d=netfilter.org;\n\ts=2025; t=1776303074;\n\tbh=RBi82MRm5pfmYw2R+MLbGyGBquLLveo8OLo+q1xI5Sc=;\n\th=From:To:Cc:Subject:Date:In-Reply-To:References:From;\n\tb=Uf2eixtsnNj5e1untSsSsOSAH4pucbTwM7QmG+IWBXGKlESUdfl05puegMYY8acBi\n\t 00sy5GkFdwYrbpcSxAYZSLjFWV1DE8EpuNyvpSDYLyI8GlanJz9CbZii6W+rNetGXZ\n\t 9xJ9hMueIKSnwvtI1AKBG25bpu2HbSgqyQHk242e38AZTpecid677DSNv5kH9NYjAZ\n\t Jteat+jUiGf9Lx/EZgN96SL6Xm4fjF3Fvm7FsCjvBf72BeNfIt/CaNAhJ7cDe+eFr5\n\t GGYUAK4lRpfoZ4nTZNR8aTa+zQio2hYwEadgj96RXo8bfn6C09JsbJjWbzwBxNrBjH\n\t nMmNrzxChyIgg==","From":"Pablo Neira Ayuso ","To":"netfilter-devel@vger.kernel.org","Cc":"davem@davemloft.net,\n\tnetdev@vger.kernel.org,\n\tkuba@kernel.org,\n\tpabeni@redhat.com,\n\tedumazet@google.com,\n\tfw@strlen.de,\n\thorms@kernel.org","Subject":"[PATCH net 05/14] netfilter: nft_osf: restrict it to ipv4","Date":"Thu, 16 Apr 2026 03:30:52 +0200","Message-ID":"<20260416013101.221555-6-pablo@netfilter.org>","X-Mailer":"git-send-email 2.47.3","In-Reply-To":"<20260416013101.221555-1-pablo@netfilter.org>","References":"<20260416013101.221555-1-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":"This expression only supports for ipv4, restrict it.\n\nFixes: b96af92d6eaf (\"netfilter: nf_tables: implement Passive OS fingerprint module in nft_osf\")\nAcked-by: Florian Westphal \nReviewed-by: Fernando Fernandez Mancera \nSigned-off-by: Pablo Neira Ayuso \n---\n net/netfilter/nft_osf.c | 6 +++++-\n 1 file changed, 5 insertions(+), 1 deletion(-)","diff":"diff --git a/net/netfilter/nft_osf.c b/net/netfilter/nft_osf.c\nindex 1c0b493ef0a9..bdc2f6c90e2f 100644\n--- a/net/netfilter/nft_osf.c\n+++ b/net/netfilter/nft_osf.c\n@@ -28,6 +28,11 @@ static void nft_osf_eval(const struct nft_expr *expr, struct nft_regs *regs,\n \tstruct nf_osf_data data;\n \tstruct tcphdr _tcph;\n \n+\tif (nft_pf(pkt) != NFPROTO_IPV4) {\n+\t\tregs->verdict.code = NFT_BREAK;\n+\t\treturn;\n+\t}\n+\n \tif (pkt->tprot != IPPROTO_TCP) {\n \t\tregs->verdict.code = NFT_BREAK;\n \t\treturn;\n@@ -114,7 +119,6 @@ static int nft_osf_validate(const struct nft_ctx *ctx,\n \n \tswitch (ctx->family) {\n \tcase NFPROTO_IPV4:\n-\tcase NFPROTO_IPV6:\n \tcase NFPROTO_INET:\n \t\thooks = (1 << NF_INET_LOCAL_IN) |\n \t\t\t(1 << NF_INET_PRE_ROUTING) |\n","prefixes":["net","05/14"]}