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 252B3C43603 for ; Tue, 10 Dec 2019 21:32:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EEC72207FF for ; Tue, 10 Dec 2019 21:32:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1576013558; bh=bEyk+gtjrnXarnY2DI1X7CsKCXjRltX/mgvzMBW2EJM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=vzBcLnBRYdHWvQb2LhOsmN/6gGKrHyFm0nERTKYk6+SRMc4LUy7dcIod+xNp07eDg xXLvoSTyCikNQfc6UGYk9DrC/3KIAHZm4aGIzgVPHnawZSthFQDLDkBUuS6UC/eXS1 8Myg+fCdhaHNQLB+5WoFRZ3xS33WA9GeYebhWWv0= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729070AbfLJVch (ORCPT ); Tue, 10 Dec 2019 16:32:37 -0500 Received: from mail.kernel.org ([198.145.29.99]:36122 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728728AbfLJVcc (ORCPT ); Tue, 10 Dec 2019 16:32:32 -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 380A720836; Tue, 10 Dec 2019 21:32:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1576013551; bh=bEyk+gtjrnXarnY2DI1X7CsKCXjRltX/mgvzMBW2EJM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=YrnG9igblVksqkP9NkRczd7myvC8Mejfbur+r9bsj9EZOhtTw1/oPUKZcg88U8x94 CFXX1BTyC0DKj6OE7sQ/E2iIaHtV4vb1m/VdvGUrZyjZEU65qk7lzDYZDTAacaxKcZ HwP55VsqHbaBMgXHQrUbV+meQ36ezwdEmnWt9hVg= 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 4.19 008/177] staging: rtl8192u: fix multiple memory leaks on error path Date: Tue, 10 Dec 2019 16:29:32 -0500 Message-Id: <20191210213221.11921-8-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191210213221.11921-1-sashal@kernel.org> References: <20191210213221.11921-1-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 e218b5c20642d..2066a1d9bc84e 100644 --- a/drivers/staging/rtl8192u/r8192U_core.c +++ b/drivers/staging/rtl8192u/r8192U_core.c @@ -1467,7 +1467,7 @@ 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; @@ -1611,8 +1611,10 @@ 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); @@ -1622,7 +1624,7 @@ 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); @@ -1633,7 +1635,12 @@ 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