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=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 061D5C3A59F for ; Thu, 29 Aug 2019 18:18:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C63D020828 for ; Thu, 29 Aug 2019 18:18:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1567102696; bh=rdPhH8z9NJp6n5Tx7phZxjwmGWsL0FRt3ZeaDJh3gcw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=rk+F02SlS91LKStgApnpcPhEJRfw4C0OZrfaymniedjBfL5lrVSkoqV5VaFAAdlEJ tHAYwtfPYj3mYEnRvRyQNQAla7lId0Obybut+FvBFSheaVcXY5cOJ/pEbvihYSdEfr 5Aa3IuVAJD45CZqbV1dW/qaAzaNNVP6dgOIkFntc= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730387AbfH2SSP (ORCPT ); Thu, 29 Aug 2019 14:18:15 -0400 Received: from mail.kernel.org ([198.145.29.99]:60470 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730364AbfH2SSO (ORCPT ); Thu, 29 Aug 2019 14:18:14 -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 B675720828; Thu, 29 Aug 2019 18:18:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1567102693; bh=rdPhH8z9NJp6n5Tx7phZxjwmGWsL0FRt3ZeaDJh3gcw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=1Gj3orkDZMmaHm/1n86dnP8gZioUd5W/0blq3HV97IlN7GuFtckvKOrOjPW6t6r36 kKWpvdCkZDWRpqx5835pYoTOmagAjBDk/SZn/WJh9IrU+nTgkUsnaXvQ2OK8qKGyoT Jc0k45iOecWz3MqRVElUCQ4v4A/iQYsLBTkkIU0E= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Wenwen Wang , "David S . Miller" , Sasha Levin , linux-usb@vger.kernel.org, netdev@vger.kernel.org Subject: [PATCH AUTOSEL 4.4 09/15] net: kalmia: fix memory leaks Date: Thu, 29 Aug 2019 14:17:56 -0400 Message-Id: <20190829181802.9619-9-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190829181802.9619-1-sashal@kernel.org> References: <20190829181802.9619-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Wenwen Wang [ Upstream commit f1472cb09f11ddb41d4be84f0650835cb65a9073 ] In kalmia_init_and_get_ethernet_addr(), 'usb_buf' is allocated through kmalloc(). In the following execution, if the 'status' returned by kalmia_send_init_packet() is not 0, 'usb_buf' is not deallocated, leading to memory leaks. To fix this issue, add the 'out' label to free 'usb_buf'. Signed-off-by: Wenwen Wang Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- drivers/net/usb/kalmia.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/net/usb/kalmia.c b/drivers/net/usb/kalmia.c index 5662babf05832..d385b67258c79 100644 --- a/drivers/net/usb/kalmia.c +++ b/drivers/net/usb/kalmia.c @@ -117,16 +117,16 @@ kalmia_init_and_get_ethernet_addr(struct usbnet *dev, u8 *ethernet_addr) status = kalmia_send_init_packet(dev, usb_buf, sizeof(init_msg_1) / sizeof(init_msg_1[0]), usb_buf, 24); if (status != 0) - return status; + goto out; memcpy(usb_buf, init_msg_2, 12); status = kalmia_send_init_packet(dev, usb_buf, sizeof(init_msg_2) / sizeof(init_msg_2[0]), usb_buf, 28); if (status != 0) - return status; + goto out; memcpy(ethernet_addr, usb_buf + 10, ETH_ALEN); - +out: kfree(usb_buf); return status; } -- 2.20.1