From patchwork Sat Dec 3 03:22:24 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ryder Lee X-Patchwork-Id: 13063418 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id EDA0BC352A1 for ; Sat, 3 Dec 2022 03:52:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type:MIME-Version: References:In-Reply-To:Message-ID:Date:Subject:CC:To:From:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=qxn7s+B8JwIhyxqEztH5T76ucl3+tCcdpJ0sd79qP5U=; b=2agNzlDLl/lT/cuMRw/4Cps5en mzgJpN0K9+8rSWicmPdXo0NvdQpugbBc/vPSKV7ZwSUwzgLsNz6cvO7L6HY11VuMwgkR+6jqQ7DeR sqYO9qRPGYYFCbCUoCml5+Y47AHP+L/+eTZZcE3rq7NUqcY32LOn7ItsbXSyJxEWxKLJeNklV5Obl O+h4cBnjl4XjNXqJFdMMNpaDf/f6/DLMmAzD6U8oU+Cm8MYahLBERwFz7nq0iXL65QCILPmPmJDqL D6t5BGGuZbCeBvv5AEKZ8zQ/BHZBQDuhES/YaIb12tGXxjBJeHCkGhx2AJfAPZzoEnT3mVB//FWYc B6v4GJHA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1p1JZv-002Hso-7b; Sat, 03 Dec 2022 03:52:39 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1p1JZr-002Hs9-3X for linux-mediatek@lists.infradead.org; Sat, 03 Dec 2022 03:52:36 +0000 X-UUID: f58e99c62d8440ee926344b0310c9ee5-20221202 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=qxn7s+B8JwIhyxqEztH5T76ucl3+tCcdpJ0sd79qP5U=; b=GlyurQg0hDhXCAHJwe9KQLTJ2xdTpOHb4KKryRzBrolkUy2SDC/GrRtCuCx6jFlIEDCPjJ6ivyvmfGON1oo0jC8Vai4/2lGyvSSeLsHptVN+EOYJ8vauxnJS9hjQMZuwrlfZyVC9Rk3i9GxCYFrvK+VnDyikXPT2vtqGh7HjYXo=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.14,REQID:0a18e649-d9b6-418e-869d-323506626587,IP:0,U RL:0,TC:0,Content:0,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTION: release,TS:0 X-CID-META: VersionHash:dcaaed0,CLOUDID:0ea06e6c-41fe-47b6-8eb4-ec192dedaf7d,B ulkID:nil,BulkQuantity:0,Recheck:0,SF:102,TC:nil,Content:0,EDM:-3,IP:nil,U RL:0,File:nil,Bulk:nil,QS:nil,BEC:nil,COL:0 X-UUID: f58e99c62d8440ee926344b0310c9ee5-20221202 Received: from mtkmbs11n1.mediatek.inc [(172.21.101.185)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 658017982; Fri, 02 Dec 2022 20:52:31 -0700 Received: from mtkmbs13n1.mediatek.inc (172.21.101.193) by mtkmbs10n1.mediatek.inc (172.21.101.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.792.15; Sat, 3 Dec 2022 11:22:27 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs13n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.792.15 via Frontend Transport; Sat, 3 Dec 2022 11:22:27 +0800 From: Ryder Lee To: Felix Fietkau , CC: Lorenzo Bianconi , Shayne Chen , Evelyn Tsai , , Ryder Lee Subject: [PATCH 3/4] wifi: mt76: mt7996: fix insecure data handling of mt7996_mcu_rx_radar_detected() Date: Sat, 3 Dec 2022 11:22:24 +0800 Message-ID: <924d203f061a5bf98c4ade208a88d27b68b2730b.1670037462.git.ryder.lee@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: References: MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221202_195235_181161_CA601357 X-CRM114-Status: UNSURE ( 8.02 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org Coverity message: using tainted "r->band_idx" variable as an index into an array "(*dev).mt76.phys". Reported-by: coverity-bot Addresses-Coverity-ID: 1527812 ("Insecure data handling") Fixes: 98686cd21624 ("wifi: mt76: mt7996: add driver for MediaTek Wi-Fi 7 (802.11be) devices") Signed-off-by: Ryder Lee --- drivers/net/wireless/mediatek/mt76/mt7996/mcu.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c index a90b7ca2df63..efb245c8ac84 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c @@ -335,6 +335,9 @@ mt7996_mcu_rx_radar_detected(struct mt7996_dev *dev, struct sk_buff *skb) r = (struct mt7996_mcu_rdd_report *)skb->data; + if (r->band_idx >= ARRAY_SIZE(dev->mt76.phys)) + return; + mphy = dev->mt76.phys[r->band_idx]; if (!mphy) return;