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=-17.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 C0AFCC433E0 for ; Fri, 19 Mar 2021 14:13:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9318864DEC for ; Fri, 19 Mar 2021 14:13:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230092AbhCSOM4 (ORCPT ); Fri, 19 Mar 2021 10:12:56 -0400 Received: from mail.kernel.org ([198.145.29.99]:59584 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230024AbhCSOM2 (ORCPT ); Fri, 19 Mar 2021 10:12:28 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 3EE6964F1C; Fri, 19 Mar 2021 14:12:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1616163148; bh=KXrGBUZMFLNiZaXs6Vj0EbHwh4Z0nzxPzhvXI/SodMk=; h=Date:From:To:cc:Subject:In-Reply-To:References:From; b=Pyt6Qdr3WqCIu0e6GqHh45t9pGVNMM59AxCBgOyGSKQ55RtKA/59m2AyZ7+8jIxiR goZM3PXaii0xSNLa6U0Hv27Ebq/7+RikB/jd/qRoltIb4zP+/ALXVcK42r63oNwX74 DQdaTZ3VO7dZsj9LfRQrmcwiFperaIluCmuyOJC0HExcv7QwUcGymmKCBJBIzZ+Na1 wDtosKhmlgvb7qQXB93DkvFtG9Edth++PVg0fwcdorDwSQFa6xMrRFGZ5WbxgNPuWU 7zERUls3brSy2Ur3Q9ZXHmuyFBMktv0WMHbHFM2NIdnYxRkRFO44xVuoB2yxYi5Juf xjPG2oJZ2dgqQ== Date: Fri, 19 Mar 2021 15:12:12 +0100 (CET) From: Jiri Kosina To: Greg Kroah-Hartman cc: linux-kernel@vger.kernel.org, stable@vger.kernel.org, TOTE Robot , Jia-Ju Bai , "David S. Miller" , Sasha Levin Subject: Re: [PATCH 5.11 13/31] net: bonding: fix error return code of bond_neigh_init() In-Reply-To: <20210319121747.622717971@linuxfoundation.org> Message-ID: References: <20210319121747.203523570@linuxfoundation.org> <20210319121747.622717971@linuxfoundation.org> User-Agent: Alpine 2.21 (LRH 202 2017-01-01) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org On Fri, 19 Mar 2021, Greg Kroah-Hartman wrote: > From: Jia-Ju Bai > > [ Upstream commit 2055a99da8a253a357bdfd359b3338ef3375a26c ] > > When slave is NULL or slave_ops->ndo_neigh_setup is NULL, no error > return code of bond_neigh_init() is assigned. > To fix this bug, ret is assigned with -EINVAL in these cases. > > Fixes: 9e99bfefdbce ("bonding: fix bond_neigh_init()") > Reported-by: TOTE Robot > Signed-off-by: Jia-Ju Bai > Signed-off-by: David S. Miller > Signed-off-by: Sasha Levin > --- > drivers/net/bonding/bond_main.c | 8 ++++++-- > 1 file changed, 6 insertions(+), 2 deletions(-) > > diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c > index 5fe5232cc3f3..fba6b6d1b430 100644 > --- a/drivers/net/bonding/bond_main.c > +++ b/drivers/net/bonding/bond_main.c > @@ -3917,11 +3917,15 @@ static int bond_neigh_init(struct neighbour *n) > > rcu_read_lock(); > slave = bond_first_slave_rcu(bond); > - if (!slave) > + if (!slave) { > + ret = -EINVAL; > goto out; > + } > slave_ops = slave->dev->netdev_ops; > - if (!slave_ops->ndo_neigh_setup) > + if (!slave_ops->ndo_neigh_setup) { > + ret = -EINVAL; > goto out; > + } This patch is completely broken and breaks bonding functionality altogether for me. -- Jiri Kosina SUSE Labs