From patchwork Fri May 8 12:33:51 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 226251 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=-6.8 required=3.0 tests=DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=ham 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 330C2C47247 for ; Fri, 8 May 2020 12:45:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 077222497E for ; Fri, 8 May 2020 12:45:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1588941958; bh=KW6y5wmFLfiHusJt9VH5WdPcHaNDUYH9sRQ8FBD/nDA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=SBJCE2xEgXzLOwLrULpKd+ndA8EUAtQ7F7MOAQLzCoY+vjjzu2U1LE6ZtxzXhj7WX yYVR9LNUF/2Gr/itoGYlkwNdZ4Ab7C8QWSkfUER6QJzkSnWUkS3yxy3UHGQu/8h10Y WhA9BNReMLOQAEcnT2odMTu6BCNTUWJLk9F1XaEQ= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728304AbgEHMp4 (ORCPT ); Fri, 8 May 2020 08:45:56 -0400 Received: from mail.kernel.org ([198.145.29.99]:46288 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729363AbgEHMp4 (ORCPT ); Fri, 8 May 2020 08:45:56 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (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 BCCA121974; Fri, 8 May 2020 12:45:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1588941956; bh=KW6y5wmFLfiHusJt9VH5WdPcHaNDUYH9sRQ8FBD/nDA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=hRCeBPrUd68D6OUIU7bgvhpwsG/Z/4yiDcENcWoY/BBG3VkEdSCvDj4P+Xdd0f2E2 uq6diLjtBciIuey4Lo4OU2t/6AnrqxaBuOGnqqzCbqtG6r3Ga/26Pc1I/8uM2cvN5M m9wtBCmqIq4mkE2n5p4lHd1iaENsYC7RCXyvbAj0= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Tobias Jungel , "David S. Miller" Subject: [PATCH 4.4 240/312] bonding: fix length of actor system Date: Fri, 8 May 2020 14:33:51 +0200 Message-Id: <20200508123141.304323372@linuxfoundation.org> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200508123124.574959822@linuxfoundation.org> References: <20200508123124.574959822@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Tobias Jungel commit 414dd6fb9a1a1b59983aea7bf0f79f0085ecc5b8 upstream. The attribute IFLA_BOND_AD_ACTOR_SYSTEM is sent to user space having the length of sizeof(bond->params.ad_actor_system) which is 8 byte. This patch aligns the length to ETH_ALEN to have the same MAC address exposed as using sysfs. Fixes: f87fda00b6ed2 ("bonding: prevent out of bound accesses") Signed-off-by: Tobias Jungel Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- drivers/net/bonding/bond_netlink.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) --- a/drivers/net/bonding/bond_netlink.c +++ b/drivers/net/bonding/bond_netlink.c @@ -628,8 +628,7 @@ static int bond_fill_info(struct sk_buff goto nla_put_failure; if (nla_put(skb, IFLA_BOND_AD_ACTOR_SYSTEM, - sizeof(bond->params.ad_actor_system), - &bond->params.ad_actor_system)) + ETH_ALEN, &bond->params.ad_actor_system)) goto nla_put_failure; } if (!bond_3ad_get_active_agg_info(bond, &info)) {