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 X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 839DCC33C9E for ; Sat, 11 Jan 2020 10:14:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4C53A206DA for ; Sat, 11 Jan 2020 10:14:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1578737676; bh=Jvvz7VAOuf5cr7sba0W0VhPGhpU6NhDWTovzuuWPgIw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=bYGimhXJlHDehpaf5Rg8tnFtcVNqHbTw23kIpsZ3Evl+Y8a9sO2N5UcxCpKEIX7sl JYgcWda9XNZnPaLj8H2qo5lxgcX14jINA91xoYLKGLOSLLlpU71GOeAuRrvzU9hJy8 j+oV/CeoPJSBY7D1B9ZuPxQlWkmznIEt0qWDddBw= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729669AbgAKKOe (ORCPT ); Sat, 11 Jan 2020 05:14:34 -0500 Received: from mail.kernel.org ([198.145.29.99]:54522 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729888AbgAKKOb (ORCPT ); Sat, 11 Jan 2020 05:14:31 -0500 Received: from localhost (unknown [62.119.166.9]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 07DC720673; Sat, 11 Jan 2020 10:14:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1578737670; bh=Jvvz7VAOuf5cr7sba0W0VhPGhpU6NhDWTovzuuWPgIw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=UKypVWz01QDlDIP6oSPwKvXwemjrs+i77W0xs1bVPryLL8HaM446apizPUcz8WDbu aE9F93C0sXgJPTEovNmQPHbvwUjMsv75c7k2qeQXNdIeCb7YaF7V9KKx7yDvxf6QeL 4FOb9VArBq3r7hV5K7TLLXs9p5mxy9K5JojRnvFE= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Pablo Neira Ayuso , Sasha Levin Subject: [PATCH 4.19 19/84] netfilter: nf_tables: validate NFT_SET_ELEM_INTERVAL_END Date: Sat, 11 Jan 2020 10:49:56 +0100 Message-Id: <20200111094852.451412708@linuxfoundation.org> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20200111094845.328046411@linuxfoundation.org> References: <20200111094845.328046411@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Pablo Neira Ayuso [ Upstream commit bffc124b6fe37d0ae9b428d104efb426403bb5c9 ] Only NFTA_SET_ELEM_KEY and NFTA_SET_ELEM_FLAGS make sense for elements whose NFT_SET_ELEM_INTERVAL_END flag is set on. Fixes: 96518518cc41 ("netfilter: add nftables") Signed-off-by: Pablo Neira Ayuso Signed-off-by: Sasha Levin --- net/netfilter/nf_tables_api.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c index 0e1b1f7f4745..42f79f9532c6 100644 --- a/net/netfilter/nf_tables_api.c +++ b/net/netfilter/nf_tables_api.c @@ -4351,14 +4351,20 @@ static int nft_add_set_elem(struct nft_ctx *ctx, struct nft_set *set, if (nla[NFTA_SET_ELEM_DATA] == NULL && !(flags & NFT_SET_ELEM_INTERVAL_END)) return -EINVAL; - if (nla[NFTA_SET_ELEM_DATA] != NULL && - flags & NFT_SET_ELEM_INTERVAL_END) - return -EINVAL; } else { if (nla[NFTA_SET_ELEM_DATA] != NULL) return -EINVAL; } + if ((flags & NFT_SET_ELEM_INTERVAL_END) && + (nla[NFTA_SET_ELEM_DATA] || + nla[NFTA_SET_ELEM_OBJREF] || + nla[NFTA_SET_ELEM_TIMEOUT] || + nla[NFTA_SET_ELEM_EXPIRATION] || + nla[NFTA_SET_ELEM_USERDATA] || + nla[NFTA_SET_ELEM_EXPR])) + return -EINVAL; + timeout = 0; if (nla[NFTA_SET_ELEM_TIMEOUT] != NULL) { if (!(set->flags & NFT_SET_TIMEOUT)) -- 2.20.1