1 files changed, 48 insertions, 23 deletions

diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index cfeaee347db3..33d8458fdd4a 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -2296,6 +2296,22 @@ static void cs_le_create_conn(struct hci_dev *hdev, bdaddr_t *peer_addr,
 	if (!conn)
 		return;
 
+	/* When using controller based address resolution, then the new
+	 * address types 0x02 and 0x03 are used. These types need to be
+	 * converted back into either public address or random address type
+	 */
+	if (use_ll_privacy(hdev) &&
+	    hci_dev_test_flag(hdev, HCI_LL_RPA_RESOLUTION)) {
+		switch (own_address_type) {
+		case ADDR_LE_DEV_PUBLIC_RESOLVED:
+			own_address_type = ADDR_LE_DEV_PUBLIC;
+			break;
+		case ADDR_LE_DEV_RANDOM_RESOLVED:
+			own_address_type = ADDR_LE_DEV_RANDOM;
+			break;
+		}
+	}
+
 	/* Store the initiator and responder address information which
 	 * is needed for SMP. These values will not change during the
 	 * lifetime of the connection.
@@ -2517,7 +2533,7 @@ static void hci_inquiry_result_evt(struct hci_dev *hdev, struct sk_buff *skb)
 
 	BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
 
-	if (!num_rsp)
+	if (!num_rsp || skb->len < num_rsp * sizeof(*info) + 1)
 		return;
 
 	if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ))
@@ -2697,10 +2713,10 @@ static void hci_conn_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
 	 */
 	if (hci_dev_test_flag(hdev, HCI_MGMT) &&
 	    !hci_dev_test_flag(hdev, HCI_CONNECTABLE) &&
-	    !hci_bdaddr_list_lookup(&hdev->whitelist, &ev->bdaddr,
-				    BDADDR_BREDR)) {
-		    hci_reject_conn(hdev, &ev->bdaddr);
-		    return;
+	    !hci_bdaddr_list_lookup_with_flags(&hdev->whitelist, &ev->bdaddr,
+					       BDADDR_BREDR)) {
+		hci_reject_conn(hdev, &ev->bdaddr);
+		return;
 	}
 
 	/* Connection accepted */
@@ -2825,7 +2841,7 @@ static void hci_disconn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
 		case HCI_AUTO_CONN_LINK_LOSS:
 			if (ev->reason != HCI_ERROR_CONNECTION_TIMEOUT)
 				break;
-			/* Fall through */
+			fallthrough;
 
 		case HCI_AUTO_CONN_DIRECT:
 		case HCI_AUTO_CONN_ALWAYS:
@@ -3065,27 +3081,23 @@ static void hci_encrypt_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
 
 	clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
 
+	/* Check link security requirements are met */
+	if (!hci_conn_check_link_mode(conn))
+		ev->status = HCI_ERROR_AUTH_FAILURE;
+
 	if (ev->status && conn->state == BT_CONNECTED) {
 		if (ev->status == HCI_ERROR_PIN_OR_KEY_MISSING)
 			set_bit(HCI_CONN_AUTH_FAILURE, &conn->flags);
 
+		/* Notify upper layers so they can cleanup before
+		 * disconnecting.
+		 */
+		hci_encrypt_cfm(conn, ev->status);
 		hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
 		hci_conn_drop(conn);
 		goto unlock;
 	}
 
-	/* In Secure Connections Only mode, do not allow any connections
-	 * that are not encrypted with AES-CCM using a P-256 authenticated
-	 * combination key.
-	 */
-	if (hci_dev_test_flag(hdev, HCI_SC_ONLY) &&
-	    (!test_bit(HCI_CONN_AES_CCM, &conn->flags) ||
-	     conn->key_type != HCI_LK_AUTH_COMBINATION_P256)) {
-		hci_connect_cfm(conn, HCI_ERROR_AUTH_FAILURE);
-		hci_conn_drop(conn);
-		goto unlock;
-	}
-
 	/* Try reading the encryption key size for encrypted ACL links */
 	if (!ev->status && ev->encrypt && conn->type == ACL_LINK) {
 		struct hci_cp_read_enc_key_size cp;
@@ -4163,6 +4175,9 @@ static void hci_inquiry_result_with_rssi_evt(struct hci_dev *hdev,
 		struct inquiry_info_with_rssi_and_pscan_mode *info;
 		info = (void *) (skb->data + 1);
 
+		if (skb->len < num_rsp * sizeof(*info) + 1)
+			goto unlock;
+
 		for (; num_rsp; num_rsp--, info++) {
 			u32 flags;
 
@@ -4184,6 +4199,9 @@ static void hci_inquiry_result_with_rssi_evt(struct hci_dev *hdev,
 	} else {
 		struct inquiry_info_with_rssi *info = (void *) (skb->data + 1);
 
+		if (skb->len < num_rsp * sizeof(*info) + 1)
+			goto unlock;
+
 		for (; num_rsp; num_rsp--, info++) {
 			u32 flags;
 
@@ -4204,6 +4222,7 @@ static void hci_inquiry_result_with_rssi_evt(struct hci_dev *hdev,
 		}
 	}
 
+unlock:
 	hci_dev_unlock(hdev);
 }
 
@@ -4324,7 +4343,7 @@ static void hci_sync_conn_complete_evt(struct hci_dev *hdev,
 			if (hci_setup_sync(conn, conn->link->handle))
 				goto unlock;
 		}
-		/* fall through */
+		fallthrough;
 
 	default:
 		conn->state = BT_CLOSED;
@@ -4379,7 +4398,7 @@ static void hci_extended_inquiry_result_evt(struct hci_dev *hdev,
 
 	BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
 
-	if (!num_rsp)
+	if (!num_rsp || skb->len < num_rsp * sizeof(*info) + 1)
 		return;
 
 	if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ))
@@ -5209,6 +5228,11 @@ static void hci_le_enh_conn_complete_evt(struct hci_dev *hdev,
 			     le16_to_cpu(ev->interval),
 			     le16_to_cpu(ev->latency),
 			     le16_to_cpu(ev->supervision_timeout));
+
+	if (use_ll_privacy(hdev) &&
+	    hci_dev_test_flag(hdev, HCI_ENABLE_LL_PRIVACY) &&
+	    hci_dev_test_flag(hdev, HCI_LL_RPA_RESOLUTION))
+		hci_req_disable_address_resolution(hdev);
 }
 
 static void hci_le_ext_adv_term_evt(struct hci_dev *hdev, struct sk_buff *skb)
@@ -5319,7 +5343,7 @@ static struct hci_conn *check_pending_le_conn(struct hci_dev *hdev,
 	}
 
 	conn = hci_connect_le(hdev, addr, addr_type, BT_SECURITY_LOW,
-			      HCI_LE_AUTOCONN_TIMEOUT, HCI_ROLE_MASTER,
+			      hdev->def_le_autoconnect_timeout, HCI_ROLE_MASTER,
 			      direct_rpa);
 	if (!IS_ERR(conn)) {
 		/* If HCI_AUTO_CONN_EXPLICIT is set, conn is already owned
@@ -5447,14 +5471,15 @@ static void process_adv_report(struct hci_dev *hdev, u8 type, bdaddr_t *bdaddr,
 
 	/* Passive scanning shouldn't trigger any device found events,
 	 * except for devices marked as CONN_REPORT for which we do send
-	 * device found events.
+	 * device found events, or advertisement monitoring requested.
 	 */
 	if (hdev->le_scan_type == LE_SCAN_PASSIVE) {
 		if (type == LE_ADV_DIRECT_IND)
 			return;
 
 		if (!hci_pend_le_action_lookup(&hdev->pend_le_reports,
-					       bdaddr, bdaddr_type))
+					       bdaddr, bdaddr_type) &&
+		    idr_is_empty(&hdev->adv_monitors_idr))
 			return;
 
 		if (type == LE_ADV_NONCONN_IND || type == LE_ADV_SCAN_IND)