Merging upstream version 5.10.216.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

8 files changed, 101 insertions, 46 deletions

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index e33fe4b1c..b9cf5bc93 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -2175,7 +2175,7 @@ int hci_get_dev_info(void __user *arg)
 	else
 		flags = hdev->flags;
 
-	strcpy(di.name, hdev->name);
+	strscpy(di.name, hdev->name, sizeof(di.name));
 	di.bdaddr   = hdev->bdaddr;
 	di.type     = (hdev->bus & 0x0f) | ((hdev->dev_type & 0x03) << 4);
 	di.flags    = flags;
@@ -2318,6 +2318,7 @@ static void hci_error_reset(struct work_struct *work)
 {
 	struct hci_dev *hdev = container_of(work, struct hci_dev, error_reset);
 
+	hci_dev_hold(hdev);
 	BT_DBG("%s", hdev->name);
 
 	if (hdev->hw_error)
@@ -2325,10 +2326,10 @@ static void hci_error_reset(struct work_struct *work)
 	else
 		bt_dev_err(hdev, "hardware error 0x%2.2x", hdev->hw_error_code);
 
-	if (hci_dev_do_close(hdev))
-		return;
+	if (!hci_dev_do_close(hdev))
+		hci_dev_do_open(hdev);
 
-	hci_dev_do_open(hdev);
+	hci_dev_put(hdev);
 }
 
 void hci_uuids_clear(struct hci_dev *hdev)
diff --git a/net/bluetooth/hci_debugfs.c b/net/bluetooth/hci_debugfs.c
index d4efc4aa5..131bb56bf 100644
--- a/net/bluetooth/hci_debugfs.c
+++ b/net/bluetooth/hci_debugfs.c
@@ -216,10 +216,12 @@ static int conn_info_min_age_set(void *data, u64 val)
 {
 	struct hci_dev *hdev = data;
 
-	if (val == 0 || val > hdev->conn_info_max_age)
+	hci_dev_lock(hdev);
+	if (val == 0 || val > hdev->conn_info_max_age) {
+		hci_dev_unlock(hdev);
 		return -EINVAL;
+	}
 
-	hci_dev_lock(hdev);
 	hdev->conn_info_min_age = val;
 	hci_dev_unlock(hdev);
 
@@ -244,10 +246,12 @@ static int conn_info_max_age_set(void *data, u64 val)
 {
 	struct hci_dev *hdev = data;
 
-	if (val == 0 || val < hdev->conn_info_min_age)
+	hci_dev_lock(hdev);
+	if (val == 0 || val < hdev->conn_info_min_age) {
+		hci_dev_unlock(hdev);
 		return -EINVAL;
+	}
 
-	hci_dev_lock(hdev);
 	hdev->conn_info_max_age = val;
 	hci_dev_unlock(hdev);
 
@@ -526,10 +530,12 @@ static int sniff_min_interval_set(void *data, u64 val)
 {
 	struct hci_dev *hdev = data;
 
-	if (val == 0 || val % 2 || val > hdev->sniff_max_interval)
+	hci_dev_lock(hdev);
+	if (val == 0 || val % 2 || val > hdev->sniff_max_interval) {
+		hci_dev_unlock(hdev);
 		return -EINVAL;
+	}
 
-	hci_dev_lock(hdev);
 	hdev->sniff_min_interval = val;
 	hci_dev_unlock(hdev);
 
@@ -554,10 +560,12 @@ static int sniff_max_interval_set(void *data, u64 val)
 {
 	struct hci_dev *hdev = data;
 
-	if (val == 0 || val % 2 || val < hdev->sniff_min_interval)
+	hci_dev_lock(hdev);
+	if (val == 0 || val % 2 || val < hdev->sniff_min_interval) {
+		hci_dev_unlock(hdev);
 		return -EINVAL;
+	}
 
-	hci_dev_lock(hdev);
 	hdev->sniff_max_interval = val;
 	hci_dev_unlock(hdev);
 
@@ -798,10 +806,12 @@ static int conn_min_interval_set(void *data, u64 val)
 {
 	struct hci_dev *hdev = data;
 
-	if (val < 0x0006 || val > 0x0c80 || val > hdev->le_conn_max_interval)
+	hci_dev_lock(hdev);
+	if (val < 0x0006 || val > 0x0c80 || val > hdev->le_conn_max_interval) {
+		hci_dev_unlock(hdev);
 		return -EINVAL;
+	}
 
-	hci_dev_lock(hdev);
 	hdev->le_conn_min_interval = val;
 	hci_dev_unlock(hdev);
 
@@ -826,10 +836,12 @@ static int conn_max_interval_set(void *data, u64 val)
 {
 	struct hci_dev *hdev = data;
 
-	if (val < 0x0006 || val > 0x0c80 || val < hdev->le_conn_min_interval)
+	hci_dev_lock(hdev);
+	if (val < 0x0006 || val > 0x0c80 || val < hdev->le_conn_min_interval) {
+		hci_dev_unlock(hdev);
 		return -EINVAL;
+	}
 
-	hci_dev_lock(hdev);
 	hdev->le_conn_max_interval = val;
 	hci_dev_unlock(hdev);
 
@@ -938,10 +950,12 @@ static int adv_min_interval_set(void *data, u64 val)
 {
 	struct hci_dev *hdev = data;
 
-	if (val < 0x0020 || val > 0x4000 || val > hdev->le_adv_max_interval)
+	hci_dev_lock(hdev);
+	if (val < 0x0020 || val > 0x4000 || val > hdev->le_adv_max_interval) {
+		hci_dev_unlock(hdev);
 		return -EINVAL;
+	}
 
-	hci_dev_lock(hdev);
 	hdev->le_adv_min_interval = val;
 	hci_dev_unlock(hdev);
 
@@ -966,10 +980,12 @@ static int adv_max_interval_set(void *data, u64 val)
 {
 	struct hci_dev *hdev = data;
 
-	if (val < 0x0020 || val > 0x4000 || val < hdev->le_adv_min_interval)
+	hci_dev_lock(hdev);
+	if (val < 0x0020 || val > 0x4000 || val < hdev->le_adv_min_interval) {
+		hci_dev_unlock(hdev);
 		return -EINVAL;
+	}
 
-	hci_dev_lock(hdev);
 	hdev->le_adv_max_interval = val;
 	hci_dev_unlock(hdev);
 
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 4027c7978..58c029958 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -2636,6 +2636,31 @@ static void hci_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
 		if (test_bit(HCI_ENCRYPT, &hdev->flags))
 			set_bit(HCI_CONN_ENCRYPT, &conn->flags);
 
+		/* "Link key request" completed ahead of "connect request" completes */
+		if (ev->encr_mode == 1 && !test_bit(HCI_CONN_ENCRYPT, &conn->flags) &&
+		    ev->link_type == ACL_LINK) {
+			struct link_key *key;
+			struct hci_cp_read_enc_key_size cp;
+
+			key = hci_find_link_key(hdev, &ev->bdaddr);
+			if (key) {
+				set_bit(HCI_CONN_ENCRYPT, &conn->flags);
+
+				if (!(hdev->commands[20] & 0x10)) {
+					conn->enc_key_size = HCI_LINK_KEY_SIZE;
+				} else {
+					cp.handle = cpu_to_le16(conn->handle);
+					if (hci_send_cmd(hdev, HCI_OP_READ_ENC_KEY_SIZE,
+							 sizeof(cp), &cp)) {
+						bt_dev_err(hdev, "sending read key size failed");
+						conn->enc_key_size = HCI_LINK_KEY_SIZE;
+					}
+				}
+
+				hci_encrypt_cfm(conn, ev->status);
+			}
+		}
+
 		/* Get remote features */
 		if (conn->type == ACL_LINK) {
 			struct hci_cp_read_remote_features cp;
@@ -2979,8 +3004,6 @@ static void hci_remote_name_evt(struct hci_dev *hdev, struct sk_buff *skb)
 
 	BT_DBG("%s", hdev->name);
 
-	hci_conn_check_pending(hdev);
-
 	hci_dev_lock(hdev);
 
 	conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
@@ -4612,9 +4635,12 @@ static void hci_io_capa_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
 	hci_dev_lock(hdev);
 
 	conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
-	if (!conn || !hci_conn_ssp_enabled(conn))
+	if (!conn || !hci_dev_test_flag(hdev, HCI_SSP_ENABLED))
 		goto unlock;
 
+	/* Assume remote supports SSP since it has triggered this event */
+	set_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
+
 	hci_conn_hold(conn);
 
 	if (!hci_dev_test_flag(hdev, HCI_MGMT))
@@ -5922,6 +5948,10 @@ static void hci_le_remote_conn_param_req_evt(struct hci_dev *hdev,
 		return send_conn_param_neg_reply(hdev, handle,
 						 HCI_ERROR_UNKNOWN_CONN_ID);
 
+	if (max > hcon->le_conn_max_interval)
+		return send_conn_param_neg_reply(hdev, handle,
+						 HCI_ERROR_INVALID_LL_PARAMS);
+
 	if (hci_check_conn_params(min, max, latency, timeout))
 		return send_conn_param_neg_reply(hdev, handle,
 						 HCI_ERROR_INVALID_LL_PARAMS);
@@ -6139,10 +6169,10 @@ static void hci_store_wake_reason(struct hci_dev *hdev, u8 event,
 	 * keep track of the bdaddr of the connection event that woke us up.
 	 */
 	if (event == HCI_EV_CONN_REQUEST) {
-		bacpy(&hdev->wake_addr, &conn_complete->bdaddr);
+		bacpy(&hdev->wake_addr, &conn_request->bdaddr);
 		hdev->wake_addr_type = BDADDR_BREDR;
 	} else if (event == HCI_EV_CONN_COMPLETE) {
-		bacpy(&hdev->wake_addr, &conn_request->bdaddr);
+		bacpy(&hdev->wake_addr, &conn_complete->bdaddr);
 		hdev->wake_addr_type = BDADDR_BREDR;
 	} else if (event == HCI_EV_LE_META) {
 		struct hci_ev_le_meta *le_ev = (void *)skb->data;
diff --git a/net/bluetooth/hci_request.c b/net/bluetooth/hci_request.c
index a0f980e61..7ce6db1ac 100644
--- a/net/bluetooth/hci_request.c
+++ b/net/bluetooth/hci_request.c
@@ -107,8 +107,10 @@ static void hci_req_sync_complete(struct hci_dev *hdev, u8 result, u16 opcode,
 	if (hdev->req_status == HCI_REQ_PEND) {
 		hdev->req_result = result;
 		hdev->req_status = HCI_REQ_DONE;
-		if (skb)
+		if (skb) {
+			kfree_skb(hdev->req_skb);
 			hdev->req_skb = skb_get(skb);
+		}
 		wake_up_interruptible(&hdev->req_wait_q);
 	}
 }
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index cf78a4808..580b6d6b9 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -5609,7 +5609,13 @@ static inline int l2cap_conn_param_update_req(struct l2cap_conn *conn,
 
 	memset(&rsp, 0, sizeof(rsp));
 
-	err = hci_check_conn_params(min, max, latency, to_multiplier);
+	if (max > hcon->le_conn_max_interval) {
+		BT_DBG("requested connection interval exceeds current bounds.");
+		err = -EINVAL;
+	} else {
+		err = hci_check_conn_params(min, max, latency, to_multiplier);
+	}
+
 	if (err)
 		rsp.result = cpu_to_le16(L2CAP_CONN_PARAM_REJECTED);
 	else
@@ -6522,7 +6528,8 @@ static inline void l2cap_sig_channel(struct l2cap_conn *conn,
 		if (len > skb->len || !cmd->ident) {
 			BT_DBG("corrupted command");
 			l2cap_sig_send_rej(conn, cmd->ident);
-			break;
+			skb_pull(skb, len > skb->len ? skb->len : len);
+			continue;
 		}
 
 		err = l2cap_bredr_sig_cmd(conn, cmd, len, skb->data);
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 756523e54..3a2be1b4a 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -456,7 +456,8 @@ static int l2cap_sock_getsockopt_old(struct socket *sock, int optname,
 	struct l2cap_chan *chan = l2cap_pi(sk)->chan;
 	struct l2cap_options opts;
 	struct l2cap_conninfo cinfo;
-	int len, err = 0;
+	int err = 0;
+	size_t len;
 	u32 opt;
 
 	BT_DBG("sk %p", sk);
@@ -503,7 +504,7 @@ static int l2cap_sock_getsockopt_old(struct socket *sock, int optname,
 
 		BT_DBG("mode 0x%2.2x", chan->mode);
 
-		len = min_t(unsigned int, len, sizeof(opts));
+		len = min(len, sizeof(opts));
 		if (copy_to_user(optval, (char *) &opts, len))
 			err = -EFAULT;
 
@@ -553,7 +554,7 @@ static int l2cap_sock_getsockopt_old(struct socket *sock, int optname,
 		cinfo.hci_handle = chan->conn->hcon->handle;
 		memcpy(cinfo.dev_class, chan->conn->hcon->dev_class, 3);
 
-		len = min_t(unsigned int, len, sizeof(cinfo));
+		len = min(len, sizeof(cinfo));
 		if (copy_to_user(optval, (char *) &cinfo, len))
 			err = -EFAULT;
 
diff --git a/net/bluetooth/rfcomm/core.c b/net/bluetooth/rfcomm/core.c
index 8d6fce900..4f54c7df3 100644
--- a/net/bluetooth/rfcomm/core.c
+++ b/net/bluetooth/rfcomm/core.c
@@ -1937,7 +1937,7 @@ static struct rfcomm_session *rfcomm_process_rx(struct rfcomm_session *s)
 	/* Get data directly from socket receive queue without copying it. */
 	while ((skb = skb_dequeue(&sk->sk_receive_queue))) {
 		skb_orphan(skb);
-		if (!skb_linearize(skb)) {
+		if (!skb_linearize(skb) && sk->sk_state != BT_CLOSED) {
 			s = rfcomm_recv_frame(s, skb);
 			if (!s)
 				break;
diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c
index 8244d3ae1..2115ca6d7 100644
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -825,7 +825,7 @@ static int sco_sock_setsockopt(struct socket *sock, int level, int optname,
 			       sockptr_t optval, unsigned int optlen)
 {
 	struct sock *sk = sock->sk;
-	int len, err = 0;
+	int err = 0;
 	struct bt_voice voice;
 	u32 opt;
 
@@ -841,10 +841,9 @@ static int sco_sock_setsockopt(struct socket *sock, int level, int optname,
 			break;
 		}
 
-		if (copy_from_sockptr(&opt, optval, sizeof(u32))) {
-			err = -EFAULT;
+		err = bt_copy_from_sockptr(&opt, sizeof(opt), optval, optlen);
+		if (err)
 			break;
-		}
 
 		if (opt)
 			set_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags);
@@ -861,11 +860,10 @@ static int sco_sock_setsockopt(struct socket *sock, int level, int optname,
 
 		voice.setting = sco_pi(sk)->setting;
 
-		len = min_t(unsigned int, sizeof(voice), optlen);
-		if (copy_from_sockptr(&voice, optval, len)) {
-			err = -EFAULT;
+		err = bt_copy_from_sockptr(&voice, sizeof(voice), optval,
+					   optlen);
+		if (err)
 			break;
-		}
 
 		/* Explicitly check for these values */
 		if (voice.setting != BT_VOICE_TRANSPARENT &&
@@ -878,10 +876,9 @@ static int sco_sock_setsockopt(struct socket *sock, int level, int optname,
 		break;
 
 	case BT_PKT_STATUS:
-		if (copy_from_sockptr(&opt, optval, sizeof(u32))) {
-			err = -EFAULT;
+		err = bt_copy_from_sockptr(&opt, sizeof(opt), optval, optlen);
+		if (err)
 			break;
-		}
 
 		if (opt)
 			sco_pi(sk)->cmsg_mask |= SCO_CMSG_PKT_STATUS;
@@ -904,7 +901,8 @@ static int sco_sock_getsockopt_old(struct socket *sock, int optname,
 	struct sock *sk = sock->sk;
 	struct sco_options opts;
 	struct sco_conninfo cinfo;
-	int len, err = 0;
+	int err = 0;
+	size_t len;
 
 	BT_DBG("sk %p", sk);
 
@@ -926,7 +924,7 @@ static int sco_sock_getsockopt_old(struct socket *sock, int optname,
 
 		BT_DBG("mtu %d", opts.mtu);
 
-		len = min_t(unsigned int, len, sizeof(opts));
+		len = min(len, sizeof(opts));
 		if (copy_to_user(optval, (char *)&opts, len))
 			err = -EFAULT;
 
@@ -944,7 +942,7 @@ static int sco_sock_getsockopt_old(struct socket *sock, int optname,
 		cinfo.hci_handle = sco_pi(sk)->conn->hcon->handle;
 		memcpy(cinfo.dev_class, sco_pi(sk)->conn->hcon->dev_class, 3);
 
-		len = min_t(unsigned int, len, sizeof(cinfo));
+		len = min(len, sizeof(cinfo));
 		if (copy_to_user(optval, (char *)&cinfo, len))
 			err = -EFAULT;