{"id":2225371,"url":"http://patchwork.ozlabs.org/api/1.1/patches/2225371/?format=json","web_url":"http://patchwork.ozlabs.org/project/netfilter-devel/patch/20260420220215.111510-2-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":"<20260420220215.111510-2-pablo@netfilter.org>","date":"2026-04-20T22:02:08","name":"[net,1/8] netfilter: nft_osf: restrict it to ipv4","commit_ref":null,"pull_url":null,"state":"accepted","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/20260420220215.111510-2-pablo@netfilter.org/mbox/","series":[{"id":500691,"url":"http://patchwork.ozlabs.org/api/1.1/series/500691/?format=json","web_url":"http://patchwork.ozlabs.org/project/netfilter-devel/list/?series=500691","date":"2026-04-20T22:02:07","name":"[net,1/8] netfilter: nft_osf: restrict it to ipv4","version":1,"mbox":"http://patchwork.ozlabs.org/series/500691/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2225371/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2225371/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=L/8RGK9/;\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=1776722544; c=relaxed/simple;\n\tbh=UBRXh4ebWqa8KGLePQsy/v1RQ0542IQzRAqco0tmKC8=;\n\th=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References:\n\t MIME-Version;\n b=NVFhwA42Y59ECgvSBWJKnt2F1PRE9HFGPWYojCPofuAnmXlFayJhnn7xPxhPgJbAsDLjE1LWqSzSFKoYX1nVFCLt/1B3QyQTuX792CGhYvAboK3M4vSlTGlH4L9cCy6YOZToEtaj+PKb0GhjfXWNWoNvBvd30Udknhm/QUjBfKM=","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=L/8RGK9/; 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=1776722541;\n\tbh=UuuWXoEE6butukVks1CZBTv9eqvABiBxY1NpJxr07OE=;\n\th=From:To:Cc:Subject:Date:In-Reply-To:References:From;\n\tb=L/8RGK9/YpDKss3yHjs2LV3IDavirFwhwSOZcH2SbhPUKtL/m5DqSDYE0PHs7Q+k9\n\t DFA+Cu2+dtl5rSMU/Lp3PXArr4+C9QXLU28tmi7+fdKYX3ZI9j7TMaY1f1CiKq1+Wc\n\t JYbfBk0Jf7+ybZp/7xp7f7pquPzZyTYyxnXtFgk+dRirGizllNpuxCwPHWYVGnVaNm\n\t 59dqmATJFh7QTNpOYCWnt+1n/JMNDT8fT3mXdRPT1Wga/IMweWLDv3+JaoS5OKH2PC\n\t 6qwiYmSQLHhcMAeuLy5bmkH1IY0uM4JguXjovln6jFcHBlvDwsTT8emxYrlMCrvKnC\n\t yIa2Qj3A0nY3g==","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 1/8] netfilter: nft_osf: restrict it to ipv4","Date":"Tue, 21 Apr 2026 00:02:08 +0200","Message-ID":"<20260420220215.111510-2-pablo@netfilter.org>","X-Mailer":"git-send-email 2.47.3","In-Reply-To":"<20260420220215.111510-1-pablo@netfilter.org>","References":"<20260420220215.111510-1-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 18003433476c..c02d5cb52143 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","1/8"]}