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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id BB253C433EF for ; Fri, 24 Dec 2021 09:01:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1352142AbhLXJBM convert rfc822-to-8bit (ORCPT ); Fri, 24 Dec 2021 04:01:12 -0500 Received: from rtits2.realtek.com ([211.75.126.72]:42834 "EHLO rtits2.realtek.com.tw" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241559AbhLXJBK (ORCPT ); Fri, 24 Dec 2021 04:01:10 -0500 Authenticated-By: X-SpamFilter-By: ArmorX SpamTrap 5.73 with qID 1BO90ssL6008060, This message is accepted by code: ctloc85258 Received: from mail.realtek.com (rtexh36505.realtek.com.tw[172.21.6.25]) by rtits2.realtek.com.tw (8.15.2/2.71/5.88) with ESMTPS id 1BO90ssL6008060 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT); Fri, 24 Dec 2021 17:00:54 +0800 Received: from RTEXMBS03.realtek.com.tw (172.21.6.96) by RTEXH36505.realtek.com.tw (172.21.6.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.17; Fri, 24 Dec 2021 17:00:54 +0800 Received: from RTEXMBS04.realtek.com.tw (172.21.6.97) by RTEXMBS03.realtek.com.tw (172.21.6.96) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.20; Fri, 24 Dec 2021 17:00:54 +0800 Received: from RTEXMBS04.realtek.com.tw ([fe80::65a3:1e23:d911:4b01]) by RTEXMBS04.realtek.com.tw ([fe80::65a3:1e23:d911:4b01%5]) with mapi id 15.01.2308.020; Fri, 24 Dec 2021 17:00:54 +0800 From: Pkshih To: Muhammad Usama Anjum , Yan-Hsuan Chuang , Kalle Valo , "David S. Miller" , Jakub Kicinski , Bernie Huang , "open list:REALTEK WIRELESS DRIVER (rtw88)" , "open list:NETWORKING DRIVERS" , open list CC: "kernel@collabora.com" Subject: RE: [PATCH v3] rtw88: check for validity before using a pointer Thread-Topic: [PATCH v3] rtw88: check for validity before using a pointer Thread-Index: AQHX+KPvE/unI/D/606seZj0xgKxUqxBV0ZA Date: Fri, 24 Dec 2021 09:00:54 +0000 Message-ID: <505cb763449e4b4ab493857e014e31a1@realtek.com> References: In-Reply-To: Accept-Language: en-US, zh-TW Content-Language: zh-TW X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [172.21.69.188] x-kse-serverinfo: RTEXMBS03.realtek.com.tw, 9 x-kse-attachmentfiltering-interceptor-info: no applicable attachment filtering rules found x-kse-antivirus-interceptor-info: scan successful x-kse-antivirus-info: =?us-ascii?Q?Clean,_bases:_2021/12/24_=3F=3F_06:32:00?= x-kse-bulkmessagesfiltering-scan-result: protection disabled Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 8BIT MIME-Version: 1.0 X-KSE-ServerInfo: RTEXH36505.realtek.com.tw, 9 X-KSE-Attachment-Filter-Triggered-Rules: Clean X-KSE-Attachment-Filter-Triggered-Filters: Clean X-KSE-BulkMessagesFiltering-Scan-Result: protection disabled Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org > -----Original Message----- > From: Muhammad Usama Anjum > Sent: Friday, December 24, 2021 4:55 PM > To: Yan-Hsuan Chuang ; Kalle Valo ; David S. Miller > ; Jakub Kicinski ; Pkshih ; Bernie Huang > ; open list:REALTEK WIRELESS DRIVER (rtw88) ; open > list:NETWORKING DRIVERS ; open list > Cc: usama.anjum@collabora.com; kernel@collabora.com > Subject: [PATCH v3] rtw88: check for validity before using a pointer > > ieee80211_probereq_get() can return NULL. Pointer skb should be checked > for validty before use. If it is not valid, list of skbs needs to be > freed. > > Fixes: 10d162b2ed39 ("rtw88: 8822c: add ieee80211_ops::hw_scan") > Signed-off-by: Muhammad Usama Anjum Acked-by: Ping-Ke Shih [...]