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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,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 1BCC3CA9EB9 for ; Sat, 26 Oct 2019 13:22:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id DBE64214DA for ; Sat, 26 Oct 2019 13:22:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1572096179; bh=luNhTd4Wph/2JoBgh1xl7TIz2ZYbQxAZF6SRn6Jv7ng=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=Wfuzq8WAU8tNEHRJhz/Tp97ULyNdYNFZPFbhTtk8+ifXlBuHAdl6Yhym0JmhWOOvg 5rfYfU4SB8qIGTUXuSUPHYC0au62Zs/duIXqWoVH24NZl/7hNmGmBVYhskoQPDF2iO T7Lm9OUI9p6h+asQgzWryKHZSFQ5ZDBh3qsIHD7w= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729560AbfJZNW5 (ORCPT ); Sat, 26 Oct 2019 09:22:57 -0400 Received: from mail.kernel.org ([198.145.29.99]:44690 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728442AbfJZNWy (ORCPT ); Sat, 26 Oct 2019 09:22:54 -0400 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 190FC21E6F; Sat, 26 Oct 2019 13:22:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1572096173; bh=luNhTd4Wph/2JoBgh1xl7TIz2ZYbQxAZF6SRn6Jv7ng=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Cmx97NV08U27OMV4gp1ixJLQdA0KTB1UYBvEm5vTnw1sHZD2hZzm+T2HnHgxcKo2V AvVs07RmM6DhnWje5RXtTD1gBYZZfhkh/Mh64KbK8Q0BSNikT0/GO4PFoKFFRynqMm /0/acYYB09tyN/UeghHBHvJ/e/Hja0//c9Tescjk= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Valentin Vidic , syzbot+f1842130bbcfb335bac1@syzkaller.appspotmail.com, "David S . Miller" , Sasha Levin , linux-usb@vger.kernel.org, netdev@vger.kernel.org Subject: [PATCH AUTOSEL 4.9 18/21] net: usb: sr9800: fix uninitialized local variable Date: Sat, 26 Oct 2019 09:22:14 -0400 Message-Id: <20191026132217.4380-18-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191026132217.4380-1-sashal@kernel.org> References: <20191026132217.4380-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org From: Valentin Vidic [ Upstream commit 77b6d09f4ae66d42cd63b121af67780ae3d1a5e9 ] 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: Sasha Levin --- drivers/net/usb/sr9800.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/usb/sr9800.c b/drivers/net/usb/sr9800.c index 004c955c1fd1b..da0ae16f5c74c 100644 --- a/drivers/net/usb/sr9800.c +++ b/drivers/net/usb/sr9800.c @@ -336,7 +336,7 @@ static void sr_set_multicast(struct net_device *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); -- 2.20.1