Bluetooth Classic AVRCP browsing channel can deadlock the Bluetooth receive thread, hanging the host
The AVRCP browsing channel's L2CAP receive-buffer callback, browsing_avrcp_l2cap_alloc_buf() in subsys/bluetooth/host/classic/avrcp.c, allocated from the shared avctp_browsing_rx_pool with K_FOREVER. L2CAP invokes that callback from the Bluetooth RX work queu…