From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 612A5CD13D2 for ; Sun, 17 Sep 2023 20:31:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241020AbjIQUbb (ORCPT ); Sun, 17 Sep 2023 16:31:31 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33896 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241078AbjIQUbJ (ORCPT ); Sun, 17 Sep 2023 16:31:09 -0400 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C78BD101 for ; Sun, 17 Sep 2023 13:31:03 -0700 (PDT) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D71B4C433C8; Sun, 17 Sep 2023 20:31:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1694982663; bh=kWgJw7QJO5pRXae6ZldiHEV2h8o79Pw5DhnJcyJtMeU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Ed7rc9p/HWnTLQ+V7EW9JyIrx9F2Sb4X7gUHMq6iJBb+PyGtQkeWI+W3mPEMW6YkM HTTnLStnfZ4JuNXS3fxhnm91quo3GjFMr2H+FVlQLvhcwHeEKGbfF1fUmBgvpdeKQa o17yEogRhtsEIHgNNQSaoi+jrrZzIEeseI9i/H+Y= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Jozsef Kadlecsik , Kyle Zeng , Florian Westphal Subject: [PATCH 5.15 317/511] netfilter: ipset: add the missing IP_SET_HASH_WITH_NET0 macro for ip_set_hash_netportnet.c Date: Sun, 17 Sep 2023 21:12:24 +0200 Message-ID: <20230917191121.476237218@linuxfoundation.org> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20230917191113.831992765@linuxfoundation.org> References: <20230917191113.831992765@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Kyle Zeng commit 050d91c03b28ca479df13dfb02bcd2c60dd6a878 upstream. The missing IP_SET_HASH_WITH_NET0 macro in ip_set_hash_netportnet can lead to the use of wrong `CIDR_POS(c)` for calculating array offsets, which can lead to integer underflow. As a result, it leads to slab out-of-bound access. This patch adds back the IP_SET_HASH_WITH_NET0 macro to ip_set_hash_netportnet to address the issue. Fixes: 886503f34d63 ("netfilter: ipset: actually allow allowable CIDR 0 in hash:net,port,net") Suggested-by: Jozsef Kadlecsik Signed-off-by: Kyle Zeng Acked-by: Jozsef Kadlecsik Signed-off-by: Florian Westphal Signed-off-by: Greg Kroah-Hartman --- net/netfilter/ipset/ip_set_hash_netportnet.c | 1 + 1 file changed, 1 insertion(+) --- a/net/netfilter/ipset/ip_set_hash_netportnet.c +++ b/net/netfilter/ipset/ip_set_hash_netportnet.c @@ -36,6 +36,7 @@ MODULE_ALIAS("ip_set_hash:net,port,net") #define IP_SET_HASH_WITH_PROTO #define IP_SET_HASH_WITH_NETS #define IPSET_NET_COUNT 2 +#define IP_SET_HASH_WITH_NET0 /* IPv4 variant */