Commit 015d79c9 authored by Edward Adam Davis's avatar Edward Adam Davis Committed by Luiz Augusto von Dentz
Browse files

Bluetooth: Ignore too large handle values in BIG 



hci_le_big_sync_established_evt is necessary to filter out cases where the
handle value is belonging to ida id range, otherwise ida will be erroneously
released in hci_conn_cleanup.

Fixes: 181a42ed ("Bluetooth: Make handle of hci_conn be unique")
Reported-by: default avatar <syzbot+b2545b087a01a7319474@syzkaller.appspotmail.com>
Closes: https://syzkaller.appspot.com/bug?extid=b2545b087a01a7319474


Signed-off-by: default avatarEdward Adam Davis <eadavis@qq.com>
Signed-off-by: default avatarLuiz Augusto von Dentz <luiz.von.dentz@intel.com>
parent 4183a7be

net/bluetooth/hci_event.c

+4 −0
Original line number Diff line number Diff line
@@ -6916,6 +6916,10 @@ static void hci_le_big_sync_established_evt(struct hci_dev *hdev, void *data, 


		bis = hci_conn_hash_lookup_handle(hdev, handle);

		if (!bis) {

			if (handle > HCI_CONN_HANDLE_MAX) {

				bt_dev_dbg(hdev, "ignore too large handle %u", handle);

				continue;

			}

			bis = hci_conn_add(hdev, ISO_LINK, BDADDR_ANY,

					   HCI_ROLE_SLAVE, handle);

			if (IS_ERR(bis))