Commit ed680f92 authored by Luiz Augusto von Dentz's avatar Luiz Augusto von Dentz
Browse files

Bluetooth: hci_event: Make sure ISO events don't affect non-ISO connections 



ISO events (CIS/BIS) shall only be relevant for connection with link
type of ISO_LINK, otherwise the controller is probably buggy or it is
the result of fuzzer tools such as syzkaller.

Signed-off-by: default avatarLuiz Augusto von Dentz <luiz.von.dentz@intel.com>
parent 7096daba

net/bluetooth/hci_event.c

+14 −0
Original line number Diff line number Diff line
@@ -6791,6 +6791,13 @@ static void hci_le_cis_estabilished_evt(struct hci_dev *hdev, void *data, 
		goto unlock;

	}



	if (conn->type != ISO_LINK) {

		bt_dev_err(hdev,

			   "Invalid connection link type handle 0x%4.4x",

			   handle);

		goto unlock;

	}



	if (conn->role == HCI_ROLE_SLAVE) {

		__le32 interval;
@@ -6911,6 +6918,13 @@ static void hci_le_create_big_complete_evt(struct hci_dev *hdev, void *data, 
	if (!conn)

		goto unlock;



	if (conn->type != ISO_LINK) {

		bt_dev_err(hdev,

			   "Invalid connection link type handle 0x%2.2x",

			   ev->handle);

		goto unlock;

	}



	if (ev->num_bis)

		conn->handle = __le16_to_cpu(ev->bis_handle[0]);