From patchwork Fri Oct 21 09:18:28 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ping-Ke Shih X-Patchwork-Id: 617468 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 B2F78C43217 for ; Fri, 21 Oct 2022 09:19:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231201AbiJUJTX (ORCPT ); Fri, 21 Oct 2022 05:19:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45004 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231296AbiJUJTC (ORCPT ); Fri, 21 Oct 2022 05:19:02 -0400 Received: from rtits2.realtek.com.tw (rtits2.realtek.com [211.75.126.72]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 2EBFB1E745C for ; Fri, 21 Oct 2022 02:18:56 -0700 (PDT) Authenticated-By: X-SpamFilter-By: ArmorX SpamTrap 5.77 with qID 29L9IC9S0029873, This message is accepted by code: ctloc85258 Received: from mail.realtek.com (rtexh36506.realtek.com.tw[172.21.6.27]) by rtits2.realtek.com.tw (8.15.2/2.81/5.90) with ESMTPS id 29L9IC9S0029873 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=FAIL); Fri, 21 Oct 2022 17:18:12 +0800 Received: from RTEXMBS04.realtek.com.tw (172.21.6.97) by RTEXH36506.realtek.com.tw (172.21.6.27) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.9; Fri, 21 Oct 2022 17:18:45 +0800 Received: from localhost (172.21.69.188) by RTEXMBS04.realtek.com.tw (172.21.6.97) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.7; Fri, 21 Oct 2022 17:18:44 +0800 From: Ping-Ke Shih To: CC: , Subject: [PATCH] wifi: rtw89: check if sta's mac_id is valid under AP/TDLS Date: Fri, 21 Oct 2022 17:18:28 +0800 Message-ID: <20221021091828.40157-1-pkshih@realtek.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-Originating-IP: [172.21.69.188] X-ClientProxiedBy: RTEXMBS02.realtek.com.tw (172.21.6.95) To RTEXMBS04.realtek.com.tw (172.21.6.97) X-KSE-ServerInfo: RTEXMBS04.realtek.com.tw, 9 X-KSE-AntiSpam-Interceptor-Info: trusted connection X-KSE-Antiphishing-Info: Clean X-KSE-Antiphishing-ScanningType: Deterministic X-KSE-Antiphishing-Method: None X-KSE-Antiphishing-Bases: 10/21/2022 08:43:00 X-KSE-AttachmentFiltering-Interceptor-Info: no applicable attachment filtering rules found X-KSE-Antivirus-Interceptor-Info: scan successful X-KSE-Antivirus-Info: =?big5_tw?b?Q2xlYW4sIGJhc2VzOiAyMDIyLzEwLzIxIKRXpMggMDc6?= =?big5_tw?b?MjY6MDA=?= X-KSE-BulkMessagesFiltering-Scan-Result: protection disabled Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Zong-Zhe Yang Add boundary check of mac_id when adding sta under AP/TDLS. And, return -ENOSPC if the acquired mac_id is invalid. Signed-off-by: Zong-Zhe Yang Signed-off-by: Ping-Ke Shih --- drivers/net/wireless/realtek/rtw89/core.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/wireless/realtek/rtw89/core.c b/drivers/net/wireless/realtek/rtw89/core.c index a0fa9639b5097..557a4dcde1e7d 100644 --- a/drivers/net/wireless/realtek/rtw89/core.c +++ b/drivers/net/wireless/realtek/rtw89/core.c @@ -2413,6 +2413,8 @@ int rtw89_core_sta_add(struct rtw89_dev *rtwdev, } else if (vif->type == NL80211_IFTYPE_AP || sta->tdls) { rtwsta->mac_id = rtw89_core_acquire_bit_map(rtwdev->mac_id_map, RTW89_MAX_MAC_ID_NUM); + if (rtwsta->mac_id == RTW89_MAX_MAC_ID_NUM) + return -ENOSPC; } return 0;