From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S968685AbcA0WHy (ORCPT ); Wed, 27 Jan 2016 17:07:54 -0500 Received: from mail.linuxfoundation.org ([140.211.169.12]:49669 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934349AbcA0SNP (ORCPT ); Wed, 27 Jan 2016 13:13:15 -0500 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Peter Wu , Larry Finger , Kalle Valo Subject: [PATCH 4.4 32/67] rtlwifi: fix memory leak for USB device Date: Wed, 27 Jan 2016 10:12:26 -0800 Message-Id: <20160127180911.494355155@linuxfoundation.org> X-Mailer: git-send-email 2.7.0 In-Reply-To: <20160127180907.419868641@linuxfoundation.org> References: <20160127180907.419868641@linuxfoundation.org> User-Agent: quilt/0.64 MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 4.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Peter Wu commit 17bc55864f81dd730d05f09b1641312a7990d636 upstream. Free skb for received frames with a wrong checksum. This can happen pretty rapidly, exhausting all memory. This fixes a memleak (detected with kmemleak). Originally found while using monitor mode, but it also appears during managed mode (once the link is up). Signed-off-by: Peter Wu ACKed-by: Larry Finger Signed-off-by: Kalle Valo Signed-off-by: Greg Kroah-Hartman --- drivers/net/wireless/realtek/rtlwifi/usb.c | 2 ++ 1 file changed, 2 insertions(+) --- a/drivers/net/wireless/realtek/rtlwifi/usb.c +++ b/drivers/net/wireless/realtek/rtlwifi/usb.c @@ -531,6 +531,8 @@ static void _rtl_usb_rx_process_noagg(st ieee80211_rx(hw, skb); else dev_kfree_skb_any(skb); + } else { + dev_kfree_skb_any(skb); } }