From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7541730DD3C; Mon, 13 Apr 2026 16:36:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776098166; cv=none; b=ODRso9+DkiAtAl/ENMxw25f0/oEbhM01erOrCWv6sySYkPgF7x+qteFpwohANcXC43ZzlfEea7xcOaeaCqd95Z7WqrHjwj+UqvWD1QHp/WRKyQy6VKi/4vMa79nzxyksoXpZXyScOxhuqH5eOca93i1CV9YI3uprjs/VhM5mUOM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776098166; c=relaxed/simple; bh=qnetcA/ruukqn8RIQuMorhigRjNzwqz0R0mdDzwOvxw=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=qytPIxkpS3vMG0BFD+ndGDyxmPNSvooiTYIIUCQoQ2Pl7RPF4ziro9YFbKRDrZ7VHA2kNhEJ2aafSfcPUV+VhaN5RzXCiGi5BqEzGMPJgWSAj1ucUJEf2mUAQhiCHlA/XKlru+GtkYmQzzuninPCK2dfrzKYmJQY8zthq0Dk4Os= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=xhN+Q8Fg; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="xhN+Q8Fg" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0AEE8C2BCAF; Mon, 13 Apr 2026 16:36:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1776098166; bh=qnetcA/ruukqn8RIQuMorhigRjNzwqz0R0mdDzwOvxw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=xhN+Q8FgRZNnyA8I5w07QE2LC2WzGZjc3T39dUTcl9MtxzWXH/VtQcm1cm9LyA5zc R8w16x/fDH9Jie8NTrGxeDD5fd8ywl1B+au/p970IQ9z5HybGJcAmpehEijzXWrc8i 8MHRHw2hBM2tqU0Xdfg3qSynMkWCO1HvmBakVCpk= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Yiming Qian , Florian Westphal , Pablo Neira Ayuso , Sasha Levin Subject: [PATCH 5.15 420/570] netfilter: nfnetlink_log: account for netlink header size Date: Mon, 13 Apr 2026 17:59:11 +0200 Message-ID: <20260413155846.206266347@linuxfoundation.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260413155830.386096114@linuxfoundation.org> References: <20260413155830.386096114@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Florian Westphal [ Upstream commit 6d52a4a0520a6696bdde51caa11f2d6821cd0c01 ] This is a followup to an old bug fix: NLMSG_DONE needs to account for the netlink header size, not just the attribute size. This can result in a WARN splat + drop of the netlink message, but other than this there are no ill effects. Fixes: 9dfa1dfe4d5e ("netfilter: nf_log: account for size of NLMSG_DONE attribute") Reported-by: Yiming Qian Signed-off-by: Florian Westphal Signed-off-by: Pablo Neira Ayuso Signed-off-by: Sasha Levin --- net/netfilter/nfnetlink_log.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/netfilter/nfnetlink_log.c b/net/netfilter/nfnetlink_log.c index 6484d08223dbc..37d10c3d19b60 100644 --- a/net/netfilter/nfnetlink_log.c +++ b/net/netfilter/nfnetlink_log.c @@ -715,7 +715,7 @@ nfulnl_log_packet(struct net *net, + nla_total_size(plen) /* prefix */ + nla_total_size(sizeof(struct nfulnl_msg_packet_hw)) + nla_total_size(sizeof(struct nfulnl_msg_packet_timestamp)) - + nla_total_size(sizeof(struct nfgenmsg)); /* NLMSG_DONE */ + + nlmsg_total_size(sizeof(struct nfgenmsg)); /* NLMSG_DONE */ if (in && skb_mac_header_was_set(skb)) { size += nla_total_size(skb->dev->hard_header_len) -- 2.53.0