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=-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,URIBL_BLOCKED,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 10008CA9EC9 for ; Mon, 4 Nov 2019 22:03:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D67522084D for ; Mon, 4 Nov 2019 22:03:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1572905003; bh=AEX36XsO5lXsy2UodCcGI6ADsqU81+EXoRM9bAA0rL0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=d945fjOyokVRvQqoh6qOZNYSKuuVBPvCeaflWNfiC5cPdphNYX8bUbi/3maP+uql4 RzxzifWwR7NQSAsMlTZkoeqGFpbgJXMox+GSk2dTHRL6dI+aW/rWUb7KA/6lXcaCco PmW4ETzyughVx+zOmJTsrbwmfDa8RVEak4G4ysCA= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389487AbfKDWDW (ORCPT ); Mon, 4 Nov 2019 17:03:22 -0500 Received: from mail.kernel.org ([198.145.29.99]:33578 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2389473AbfKDWDO (ORCPT ); Mon, 4 Nov 2019 17:03:14 -0500 Received: from localhost (6.204-14-84.ripe.coltfrance.com [84.14.204.6]) (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 B8489205C9; Mon, 4 Nov 2019 22:03:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1572904994; bh=AEX36XsO5lXsy2UodCcGI6ADsqU81+EXoRM9bAA0rL0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=z2w42cANHfJBlr2CePngOqf6ta01Vp1tIhACUfcTN5iEHrRQeYN6PUCfKkcdulKhy RGQDbhWGBvZHlQ7DLOzGvLHqEHzcfXg3QcS0MFSo9cLR10ISkrp6rZ9wvMH9UN1WiX LoSg+9D8KLYLhcmI7RZCKNtkCGcE42VcMJCxnRPs= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, syzbot+f1842130bbcfb335bac1@syzkaller.appspotmail.com, Valentin Vidic , "David S. Miller" Subject: [PATCH 4.19 143/149] net: usb: sr9800: fix uninitialized local variable Date: Mon, 4 Nov 2019 22:45:36 +0100 Message-Id: <20191104212146.731740926@linuxfoundation.org> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20191104212126.090054740@linuxfoundation.org> References: <20191104212126.090054740@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: Valentin Vidic commit 77b6d09f4ae66d42cd63b121af67780ae3d1a5e9 upstream. Make sure res does not contain random value if the call to sr_read_cmd fails for some reason. Reported-by: syzbot+f1842130bbcfb335bac1@syzkaller.appspotmail.com Signed-off-by: Valentin Vidic Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- drivers/net/usb/sr9800.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/net/usb/sr9800.c +++ b/drivers/net/usb/sr9800.c @@ -336,7 +336,7 @@ static void sr_set_multicast(struct net_ static int sr_mdio_read(struct net_device *net, int phy_id, int loc) { struct usbnet *dev = netdev_priv(net); - __le16 res; + __le16 res = 0; mutex_lock(&dev->phy_mutex); sr_set_sw_mii(dev);