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,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 44981C43603 for ; Tue, 10 Dec 2019 22:44:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 162D02053B for ; Tue, 10 Dec 2019 22:44:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1576017888; bh=z8PnKVK74ENGpfBY08cvdPkDCNbeMO4HpQLF8Ybtr40=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=mBYHdtmYIb0XrKjN48taSf+2O6ByI2sBu6t/+4eaGwe46lB1Fy0r3xFremQC04OPK 8rrxRfWLk8vYlY/Yb7nZgolFkIIIOaYMu7oW+4eAOe6JW6iH14GIzofEAOVJnFeuQk EDHpmseLoZp0x4NgBMurVLKx2qwz2zCKd3sfGrQw= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727486AbfLJWat (ORCPT ); Tue, 10 Dec 2019 17:30:49 -0500 Received: from mail.kernel.org ([198.145.29.99]:50430 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727069AbfLJWao (ORCPT ); Tue, 10 Dec 2019 17:30:44 -0500 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 C2B7F20836; Tue, 10 Dec 2019 22:30:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1576017043; bh=z8PnKVK74ENGpfBY08cvdPkDCNbeMO4HpQLF8Ybtr40=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=XPHUYa5M5itUNCq4kTwW5LAUQVvNRaDyntRrTgxt2L4JS53a+uUv1O/9YMWG2xYdz cZ6cHHHR0Si2c6W10F06vvZSPsDfUefAVtoA3Gzae47krZOtPe9T+WdG2Y5pOyQ6wW f7RCR3cLy4peM4MwD4iH/3gmOkQnjNo/uwTqaPTI= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Navid Emamdoost , Greg Kroah-Hartman , Sasha Levin , devel@driverdev.osuosl.org Subject: [PATCH AUTOSEL 4.9 06/91] staging: rtl8192u: fix multiple memory leaks on error path Date: Tue, 10 Dec 2019 17:29:10 -0500 Message-Id: <20191210223035.14270-6-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191210223035.14270-1-sashal@kernel.org> References: <20191210223035.14270-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Navid Emamdoost [ Upstream commit ca312438cf176a16d4b89350cade8789ba8d7133 ] In rtl8192_tx on error handling path allocated urbs and also skb should be released. Signed-off-by: Navid Emamdoost Link: https://lore.kernel.org/r/20190920025137.29407-1-navid.emamdoost@gmail.com Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin --- drivers/staging/rtl8192u/r8192U_core.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) diff --git a/drivers/staging/rtl8192u/r8192U_core.c b/drivers/staging/rtl8192u/r8192U_core.c index 5fe95937d8113..6ec3790566504 100644 --- a/drivers/staging/rtl8192u/r8192U_core.c +++ b/drivers/staging/rtl8192u/r8192U_core.c @@ -1509,7 +1509,7 @@ short rtl8192_tx(struct net_device *dev, struct sk_buff *skb) (tx_fwinfo_819x_usb *)(skb->data + USB_HWDESC_HEADER_LEN); struct usb_device *udev = priv->udev; int pend; - int status; + int status, rt = -1; struct urb *tx_urb = NULL, *tx_urb_zero = NULL; unsigned int idx_pipe; @@ -1653,8 +1653,10 @@ short rtl8192_tx(struct net_device *dev, struct sk_buff *skb) } if (bSend0Byte) { tx_urb_zero = usb_alloc_urb(0, GFP_ATOMIC); - if (!tx_urb_zero) - return -ENOMEM; + if (!tx_urb_zero) { + rt = -ENOMEM; + goto error; + } usb_fill_bulk_urb(tx_urb_zero, udev, usb_sndbulkpipe(udev, idx_pipe), &zero, 0, tx_zero_isr, dev); @@ -1664,7 +1666,7 @@ short rtl8192_tx(struct net_device *dev, struct sk_buff *skb) "Error TX URB for zero byte %d, error %d", atomic_read(&priv->tx_pending[tcb_desc->queue_index]), status); - return -1; + goto error; } } netif_trans_update(dev); @@ -1675,7 +1677,12 @@ short rtl8192_tx(struct net_device *dev, struct sk_buff *skb) RT_TRACE(COMP_ERR, "Error TX URB %d, error %d", atomic_read(&priv->tx_pending[tcb_desc->queue_index]), status); - return -1; + +error: + dev_kfree_skb_any(skb); + usb_free_urb(tx_urb); + usb_free_urb(tx_urb_zero); + return rt; } static short rtl8192_usb_initendpoints(struct net_device *dev) -- 2.20.1