r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
recvmmsg(r0, &(0x7f0000004a80)=[{{&(0x7f0000004940)=@caif=@rfm, 0x80, &(0x7f0000004a40)=[{0x0}], 0x1}}], 0x1, 0x2023, &(0x7f0000004ac0)={0x0, 0x3938700})