From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 2DC93168A7 for ; Mon, 8 May 2023 10:38:30 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9F8BDC433EF; Mon, 8 May 2023 10:38:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1683542310; bh=lpfKI2YHJdz7GAda496iuHUKRZV56TVYaMGEB9AZ0uQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=aan/HsT9Z/7blebOPADInUac3mNsWk5HbzdAhd9XCwWUSPfPzV+7JiSfpvgJiE3lq uZKuxw0+Q9NlZzvRgfN85JBju3IQrxfa6+F0HZs5SXjan30iDqbInmZCY2hq3SR4WK 5zyvDCxouxKBNcRS4XKGA7BN4Sbhf/E9lRA92j4Q= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Peter Chiu , Shayne Chen , Felix Fietkau , Sasha Levin Subject: [PATCH 6.2 395/663] wifi: mt76: mt7996: fix pointer calculation in ie countdown event Date: Mon, 8 May 2023 11:43:41 +0200 Message-Id: <20230508094440.913622683@linuxfoundation.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230508094428.384831245@linuxfoundation.org> References: <20230508094428.384831245@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Peter Chiu [ Upstream commit 8b14ce24a0297175bc4ebdf26d45a22b5a33847f ] Fix the tail and data pointers. The rxd->len in mt7996_mcu_rxd does not include the length of general rxd. It only includes the length of firmware event rxd. Use skb->length to get the correct length. Fixes: 98686cd21624 ("wifi: mt76: mt7996: add driver for MediaTek Wi-Fi 7 (802.11be) devices") Signed-off-by: Peter Chiu Signed-off-by: Shayne Chen Signed-off-by: Felix Fietkau Signed-off-by: Sasha Levin --- drivers/net/wireless/mediatek/mt76/mt7996/mcu.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c index 18c4e7bc4370d..c8c332ed8a402 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c @@ -421,7 +421,8 @@ mt7996_mcu_ie_countdown(struct mt7996_dev *dev, struct sk_buff *skb) if (hdr->band && dev->mt76.phys[hdr->band]) mphy = dev->mt76.phys[hdr->band]; - tail = skb->data + le16_to_cpu(rxd->len); + tail = skb->data + skb->len; + data += sizeof(struct header); while (data + sizeof(struct tlv) < tail && le16_to_cpu(tlv->len)) { switch (le16_to_cpu(tlv->tag)) { case UNI_EVENT_IE_COUNTDOWN_CSA: -- 2.39.2