From patchwork Mon Aug 19 01:53:33 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mingyen Hsieh X-Patchwork-Id: 821701 Received: from mailgw01.mediatek.com (unknown [60.244.123.138]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 77132182B3; Mon, 19 Aug 2024 01:53:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=60.244.123.138 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724032431; cv=none; b=CKt2p9kv40V2zWz866gwzin/wVrdn7nSlKaOoBqg8tY95hr8Cw7qiaSelAZgKIBXdu8H560QH8wU/tpj0KA8OWevRphdjY4+pjh9cSlT4LrpofsSn1/zyY7BOQliFCDuWdgDxRDGfyENcJIncLgyvcW2xZ9/hVFckDSpzMxlGV0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724032431; c=relaxed/simple; bh=bF5wi/Dy64P8We8RQoAaZ76s8gyvAg7pzXd9zeCB8Dc=; h=From:To:CC:Subject:Date:Message-ID:MIME-Version:Content-Type; b=Jgo1uj5r3F8KiJZTd9cD034TIO2S66KdNxeOp9wyywsdhW7Y3sKxAYgz4L5cbEyQJSdARchDRAg55p8XztT//zWc/RKhLje21S1VwlQR280D1qBiQy/+EkSeUhVR8XDr5tm+AaKKhXWXHlm0QkSbBhkD/VuMDkSAOW+kjQ/AuYw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=mediatek.com; spf=pass smtp.mailfrom=mediatek.com; dkim=pass (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b=IFbzFzD2; arc=none smtp.client-ip=60.244.123.138 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=mediatek.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=mediatek.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b="IFbzFzD2" X-UUID: d82a83085dcd11ef8593d301e5c8a9c0-20240819 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:MIME-Version:Message-ID:Date:Subject:CC:To:From; bh=kvEtLBOhrbMmyM6hA7rV7JXf4iL8Qs4xEiJDM47t39Y=; b=IFbzFzD23oILU5ygT7FXxuzFmIsnTEZ5iInvP+a2qbhqch789AshhXUV2EueMr1B+IVOvBpr/0p+ZD++N9AyLjSHmgyjvQ0a909Lc6+vfRZh3t+G9zYXrl5WfyJ1oPoHaqYuDZnrAswpPsMVneiQHZ1Th5MS9NXj3ONqYSRRch0=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.41, REQID:bcba66ab-248c-47d0-933e-100ceecccac8, IP:0, U RL:0,TC:0,Content:-5,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTION :release,TS:-5 X-CID-META: VersionHash:6dc6a47, CLOUDID:192eccce-7921-4900-88a1-3aef019a55ce, B ulkID:nil,BulkQuantity:0,Recheck:0,SF:102,TC:nil,Content:0,EDM:-3,IP:nil,U RL:0,File:nil,RT:nil,Bulk:nil,QS:nil,BEC:nil,COL:0,OSI:0,OSA:0,AV:0,LES:1, SPR:NO,DKR:0,DKP:0,BRR:0,BRE:0,ARC:0 X-CID-BVR: 0 X-CID-BAS: 0,_,0,_ X-CID-FACTOR: TF_CID_SPAM_SNR X-UUID: d82a83085dcd11ef8593d301e5c8a9c0-20240819 Received: from mtkmbs09n1.mediatek.inc [(172.21.101.35)] by mailgw01.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 692559595; Mon, 19 Aug 2024 09:53:34 +0800 Received: from mtkmbs11n1.mediatek.inc (172.21.101.185) by MTKMBS09N2.mediatek.inc (172.21.101.94) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Sun, 18 Aug 2024 18:53:36 -0700 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs11n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.26 via Frontend Transport; Mon, 19 Aug 2024 09:53:36 +0800 From: Mingyen Hsieh To: , CC: , , , , , , , , , , , , , , , Ming Yen Hsieh , Subject: [PATCH 1/2] wifi: mt76: mt7925: fix a potential array-index-out-of-bounds issue for clc Date: Mon, 19 Aug 2024 09:53:33 +0800 Message-ID: <20240819015334.14580-1-mingyen.hsieh@mediatek.com> X-Mailer: git-send-email 2.18.0 Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Ming Yen Hsieh Due to the lack of checks on the clc array, if the firmware supports more clc configuration, it will cause illegal memory access. Cc: stable@vger.kernel.org Fixes: c948b5da6bbe ("wifi: mt76: mt7925: add Mediatek Wi-Fi7 driver for mt7925 chips") Signed-off-by: Ming Yen Hsieh --- drivers/net/wireless/mediatek/mt76/mt7925/mcu.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/wireless/mediatek/mt76/mt7925/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7925/mcu.c index 9dc22fbe25d3..c6c380571fd8 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7925/mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt7925/mcu.c @@ -638,6 +638,9 @@ static int mt7925_load_clc(struct mt792x_dev *dev, const char *fw_name) for (offset = 0; offset < len; offset += le32_to_cpu(clc->len)) { clc = (const struct mt7925_clc *)(clc_base + offset); + if (clc->idx > ARRAY_SIZE(phy->clc)) + break; + /* do not init buf again if chip reset triggered */ if (phy->clc[clc->idx]) continue;