unknown connection handle

[83397.294381] input: 0C:E0:E4:64:86:F5 as /devices/virtual/input/input22
[84269.079287] input: 0C:E0:E4:64:86:F5 as /devices/virtual/input/input23
[84270.740686] Bluetooth: hci0 SCO packet for unknown connection handle 0
[84270.750671] Bluetooth: hci0 SCO packet for unknown connection handle 0
[84270.750676] Bluetooth: hci0 SCO packet for unknown connection handle 0
[84270.750679] Bluetooth: hci0 SCO packet for unknown connection handle 0
[84270.760818] Bluetooth: hci0 SCO packet for unknown connection handle 0
[84270.760842] Bluetooth: hci0 SCO packet for unknown connection handle 0
[84276.227169] Bluetooth: hci0 SCO packet for unknown connection handle 257
[84560.775079] Bluetooth: hci0 SCO packet for unknown connection handle 0
[84560.775083] Bluetooth: hci0 SCO packet for unknown connection handle 0
[84560.785156] Bluetooth: hci0 SCO packet for unknown connection handle 0
[84560.785194] Bluetooth: hci0 SCO packet for unknown connection handle 0
[84560.785216] Bluetooth: hci0 SCO packet for unknown connection handle 0
[84560.795083] Bluetooth: hci0 SCO packet for unknown connection handle 0
[84644.188158] Bluetooth: hci0 SCO packet for unknown connection handle 0
[84644.188165] Bluetooth: hci0 SCO packet for unknown connection handle 0
[84644.198259] Bluetooth: hci0 SCO packet for unknown connection handle 0
[84644.198301] Bluetooth: hci0 SCO packet for unknown connection handle 0
[84644.198310] Bluetooth: hci0 SCO packet for unknown connection handle 0
[84644.208199] Bluetooth: hci0 SCO packet for unknown connection handle 0