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 F1B51C00454 for ; Tue, 10 Dec 2019 21:05:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C53912467E for ; Tue, 10 Dec 2019 21:05:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1576011941; bh=xcQCrD06BHBQnfMr86Hqx4j6zi4AMuPoQR4ZvID16fg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=nJ6i7k3T9VuOfaGb/6so3LCfRnuMDKtOmMnayK8/VqsDxSJetnaZMcma+7HjQWzqz lBPTXqZScnuAJFk0IH+UACB53K9odiVpvRODk49J2WAfuYRkqunsOr8m3p5ST6oPVq jbZ7NQFzf3NJiBKgrW27urHih806YKlAGIkTxPR0= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727409AbfLJVEi (ORCPT ); Tue, 10 Dec 2019 16:04:38 -0500 Received: from mail.kernel.org ([198.145.29.99]:49570 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727305AbfLJVEb (ORCPT ); Tue, 10 Dec 2019 16:04:31 -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 5ADAE24687; Tue, 10 Dec 2019 21:04:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1576011871; bh=xcQCrD06BHBQnfMr86Hqx4j6zi4AMuPoQR4ZvID16fg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=L/Ali0kkyxtrkiWQ5Zkid61KGBTCayz51uXfiGjGTybIKWj0+TKp1OCPz0Hx/Evex iKPWzBCRiouarmG1abWXSVEbtwiwt7rxkhiSPIkoYKkyTRa5FK/41GEkgSmE0pore0 568hSny8ZyUj+oQpEY+B0tQ5ZCyCcBjh45m2dLys= 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 5.4 023/350] staging: rtl8192u: fix multiple memory leaks on error path Date: Tue, 10 Dec 2019 15:58:35 -0500 Message-Id: <20191210210402.8367-23-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191210210402.8367-1-sashal@kernel.org> References: <20191210210402.8367-1-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 2821411878ce0..511136dce3a4c 100644 --- a/drivers/staging/rtl8192u/r8192U_core.c +++ b/drivers/staging/rtl8192u/r8192U_core.c @@ -1422,7 +1422,7 @@ short rtl8192_tx(struct net_device *dev, struct sk_buff *skb) (struct 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; @@ -1566,8 +1566,10 @@ 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); @@ -1577,7 +1579,7 @@ 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); @@ -1588,7 +1590,12 @@ 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