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=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,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 068AAC433EF for ; Sun, 8 Sep 2019 12:53:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D22372082C for ; Sun, 8 Sep 2019 12:53:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1567947201; bh=AbzrnSWhZ8ficJjrTZOrZtb6kKslsX7EnMJj2RriZ78=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=D3lRN50RDskufxsRb5MYrhpisDGObK0Pu2LR6Q0LVHCmuXSWowE5tfl3C38cFnMup saWc9xVwcLswYVm1bYBDoRrlr4vrmF6MNesIRrpWeaYASjn368dP4/y2R5we6elqQN QfFqm7sikrcska+uYj0IzxBIjcOYgJHynpZlSGBU= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387590AbfIHMxV (ORCPT ); Sun, 8 Sep 2019 08:53:21 -0400 Received: from mail.kernel.org ([198.145.29.99]:46214 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387559AbfIHMxT (ORCPT ); Sun, 8 Sep 2019 08:53:19 -0400 Received: from localhost (unknown [62.28.240.114]) (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 4254D2082C; Sun, 8 Sep 2019 12:53:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1567947198; bh=AbzrnSWhZ8ficJjrTZOrZtb6kKslsX7EnMJj2RriZ78=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=LLqSL7Hz7t2PQp/KwSeJ+o9bD49juaCqN9pBiFtwbHCAhtSMo8pFkVxxR5yM8rqc5 QRZgSkMvBSSF6DWeHUqGqVclmuNhUYUtEI6c7RfT8bReYXorCR7qoQ9Fwf7f2aocbt GdcIMbXShcyO3fb9sAud30nZArHjGTTtD9wLrHMY= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Wenwen Wang , "David S. Miller" , Sasha Levin Subject: [PATCH 5.2 58/94] net: kalmia: fix memory leaks Date: Sun, 8 Sep 2019 13:41:54 +0100 Message-Id: <20190908121152.095679630@linuxfoundation.org> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20190908121150.420989666@linuxfoundation.org> References: <20190908121150.420989666@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 [ 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 d62b6706a5376..fc5895f85cee2 100644 --- a/drivers/net/usb/kalmia.c +++ b/drivers/net/usb/kalmia.c @@ -113,16 +113,16 @@ kalmia_init_and_get_ethernet_addr(struct usbnet *dev, u8 *ethernet_addr) status = kalmia_send_init_packet(dev, usb_buf, ARRAY_SIZE(init_msg_1), 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, ARRAY_SIZE(init_msg_2), 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