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 D6DE18BE0 for ; Tue, 28 Mar 2023 14:48:17 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5778EC433EF; Tue, 28 Mar 2023 14:48:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1680014897; bh=7aZkUTZ/Knwr5i5ptz64TfiTRMbWRrnZmysVfju2/4M=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ipkjOO5LzpyUE9vruGN9NEJkNJEMJUg/aKuX9DfNd5/TXv3P+QPDgBkmeJzMFSsJp urPoyXhjIUfgdn+8Ic9IWF/ybqnUmy6dTUE/gyzGKoAbXVI6Sw8otkCRxOFJcYRddj M+NNRSJG2Tqruj6xTTrMCFKEiVXfpq0wzS+Ss99Q= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Pauli Virtanen , Luiz Augusto von Dentz , Sasha Levin Subject: [PATCH 6.2 092/240] Bluetooth: ISO: fix timestamped HCI ISO data packet parsing Date: Tue, 28 Mar 2023 16:40:55 +0200 Message-Id: <20230328142623.606553127@linuxfoundation.org> X-Mailer: git-send-email 2.40.0 In-Reply-To: <20230328142619.643313678@linuxfoundation.org> References: <20230328142619.643313678@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: Pauli Virtanen [ Upstream commit 2f10e40a948e8a2abe7f983df3959a333ca8955f ] Use correct HCI ISO data packet header struct when the packet has timestamp. The timestamp, when present, goes before the other fields (Core v5.3 4E 5.4.5), so the structs are not compatible. Fixes: ccf74f2390d6 ("Bluetooth: Add BTPROTO_ISO socket type") Signed-off-by: Pauli Virtanen Signed-off-by: Luiz Augusto von Dentz Signed-off-by: Sasha Levin --- net/bluetooth/iso.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/net/bluetooth/iso.c b/net/bluetooth/iso.c index 24444b502e586..8d136a7301630 100644 --- a/net/bluetooth/iso.c +++ b/net/bluetooth/iso.c @@ -1620,7 +1620,6 @@ static void iso_disconn_cfm(struct hci_conn *hcon, __u8 reason) void iso_recv(struct hci_conn *hcon, struct sk_buff *skb, u16 flags) { struct iso_conn *conn = hcon->iso_data; - struct hci_iso_data_hdr *hdr; __u16 pb, ts, len; if (!conn) @@ -1642,6 +1641,8 @@ void iso_recv(struct hci_conn *hcon, struct sk_buff *skb, u16 flags) } if (ts) { + struct hci_iso_ts_data_hdr *hdr; + /* TODO: add timestamp to the packet? */ hdr = skb_pull_data(skb, HCI_ISO_TS_DATA_HDR_SIZE); if (!hdr) { @@ -1649,15 +1650,19 @@ void iso_recv(struct hci_conn *hcon, struct sk_buff *skb, u16 flags) goto drop; } + len = __le16_to_cpu(hdr->slen); } else { + struct hci_iso_data_hdr *hdr; + hdr = skb_pull_data(skb, HCI_ISO_DATA_HDR_SIZE); if (!hdr) { BT_ERR("Frame is too short (len %d)", skb->len); goto drop; } + + len = __le16_to_cpu(hdr->slen); } - len = __le16_to_cpu(hdr->slen); flags = hci_iso_data_flags(len); len = hci_iso_data_len(len); -- 2.39.2