Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
27	38	usbd_edpt_xfer	call site: 00038	process_get_descriptor
25	66	process_control_request	call site: 00066	usbd_control_xfer_cb
9	26	process_control_request	call site: 00026	tud_control_xfer
3	10	dcd_int_handler	call site: 00010	tu_fifo_write
3	112	stream_xfer	call site: 00112	stream_release
2	22	usbd_reset	call site: 00022	usbd_reset
1	19	tu_fifo_read	call site: 00019	usbd_reset
1	108	stream_claim	call site: 00108	tu_edpt_claim
1	110	tu_edpt_stream_read_xfer	call site: 00110	usbd_edpt_xfer_fifo
1	130	tu_edpt_stream_write_xfer	call site: 00130	stream_release

Fuzzer calltree


         LLVMFuzzerTestOneInput

[function] [call site] 00000


           fuzz_init

[function] [call site] 00001


           tud_rhport_init

[function] [call site] 00002


             tud_inited

[function] [call site] 00003


             tu_fifo_clear

[function] [call site] 00004


             usbd_app_driver_get_cb

[function] [call site] 00005


             dcd_init

[function] [call site] 00006


             dcd_int_enable

[function] [call site] 00007


           dcd_int_handler

[function] [call site] 00008


             __assert_fail

[call site] 00009


             dcd_event_handler

[function] [call site] 00010


               tu_fifo_write

[function] [call site] 00011


               tud_event_hook_cb

[function] [call site] 00012


               tud_event_hook_cb

[function] [call site] 00013


               tud_event_hook_cb

[function] [call site] 00014


             dcd_event_handler

[function] [call site] 00015


           tud_task_ext

[function] [call site] 00016


             tud_inited

[function] [call site] 00017


             tu_fifo_read

[function] [call site] 00018


               ff_peek_local

[function] [call site] 00019


             usbd_reset

[function] [call site] 00020


               configuration_reset

[function] [call site] 00021


               usbd_control_reset

[function] [call site] 00022


             usbd_reset

[function] [call site] 00023


             tud_umount_cb

[function] [call site] 00024


             process_control_request

[function] [call site] 00025


               usbd_control_set_complete_callback

[function] [call site] 00026


               usbd_control_set_complete_callback

[function] [call site] 00027


               tud_vendor_control_xfer_cb

[function] [call site] 00028


               tud_vendor_control_xfer_cb

[function] [call site] 00029


               invoke_class_control

[function] [call site] 00030


                 usbd_control_set_complete_callback

[function] [call site] 00031


               usbd_control_set_request

[function] [call site] 00032


               dcd_set_address

[function] [call site] 00033


                 dcd_edpt_xfer

[function] [call site] 00034


               tud_control_xfer

[function] [call site] 00035


                 data_stage_xact

[function] [call site] 00036


                   usbd_edpt_xfer

[function] [call site] 00037


                     dcd_edpt_xfer

[function] [call site] 00038


                 status_stage_xact

[function] [call site] 00039


                   usbd_edpt_xfer

[function] [call site] 00040


               dcd_sof_enable

[function] [call site] 00041


               dcd_edpt_close_all

[function] [call site] 00042


               configuration_reset

[function] [call site] 00043


               tud_umount_cb

[function] [call site] 00044


               process_set_config

[function] [call site] 00045


                 tud_descriptor_configuration_cb

[function] [call site] 00046


                 tu_edpt_bind_driver

[function] [call site] 00047


               tud_mount_cb

[function] [call site] 00048


               tud_control_status

[function] [call site] 00049


                 status_stage_xact

[function] [call site] 00050


               process_get_descriptor

[function] [call site] 00051


                 tud_descriptor_device_cb

[function] [call site] 00052


                 tud_control_xfer

[function] [call site] 00053


                 tud_descriptor_bos_cb

[function] [call site] 00054


                 tud_control_xfer

[function] [call site] 00055


                 tud_descriptor_configuration_cb

[function] [call site] 00056


                 tud_descriptor_other_speed_configuration_cb

[function] [call site] 00057


                 tud_control_xfer

[function] [call site] 00058


                 tud_descriptor_string_cb

[function] [call site] 00059


                   strlen

[call site] 00060


                 tud_control_xfer

[function] [call site] 00061


                 tud_descriptor_device_qualifier_cb

[function] [call site] 00062


                 tud_control_xfer

[function] [call site] 00063


               tud_control_status

[function] [call site] 00064


               tud_control_status

[function] [call site] 00065


               tud_control_xfer

[function] [call site] 00066


               invoke_class_control

[function] [call site] 00067


               usbd_control_set_complete_callback

[function] [call site] 00068


               tud_control_xfer

[function] [call site] 00069


               tud_control_status

[function] [call site] 00070


               invoke_class_control

[function] [call site] 00071


               usbd_edpt_stalled

[function] [call site] 00072


               tud_control_xfer

[function] [call site] 00073


               usbd_edpt_clear_stall

[function] [call site] 00074


                 dcd_edpt_clear_stall

[function] [call site] 00075


               usbd_edpt_stall

[function] [call site] 00076


                 dcd_edpt_stall

[function] [call site] 00077


               invoke_class_control

[function] [call site] 00078


               usbd_control_set_complete_callback

[function] [call site] 00079


               tud_control_status

[function] [call site] 00080


             dcd_edpt_stall

[function] [call site] 00081


             dcd_edpt_stall

[function] [call site] 00082


             usbd_control_xfer_cb

[function] [call site] 00083


               dcd_edpt0_status_complete

[function] [call site] 00084


               status_stage_xact

[function] [call site] 00085


               dcd_edpt_stall

[function] [call site] 00086


               dcd_edpt_stall

[function] [call site] 00087


               data_stage_xact

[function] [call site] 00088


             tud_suspend_cb

[function] [call site] 00089


             tud_resume_cb

[function] [call site] 00090


             tud_sof_cb

[function] [call site] 00091


           cdc_task

[function] [call site] 00092


             __assert_fail

[call site] 00093


             tud_cdc_n_connected

[function] [call site] 00094


               tud_mounted

[function] [call site] 00095


               tud_suspended

[function] [call site] 00096


             tud_cdc_n_get_line_state

[function] [call site] 00097


             tud_cdc_n_get_line_coding

[function] [call site] 00098


             tud_cdc_n_set_wanted_char

[function] [call site] 00099


             tud_cdc_n_available

[function] [call site] 00100


             tud_cdc_n_read

[function] [call site] 00101


               tu_edpt_stream_read

[function] [call site] 00102


                 tu_fifo_read_n_access_mode

[function] [call site] 00103


                   tu_fifo_peek_n_access_mode

[function] [call site] 00104


                     ff_pull_n

[function] [call site] 00105


                 tu_edpt_stream_read_xfer

[function] [call site] 00106


                   stream_claim

[function] [call site] 00107


                     usbd_edpt_claim

[function] [call site] 00108


                       tu_edpt_claim

[function] [call site] 00109


                   stream_xfer

[function] [call site] 00110


                     usbd_edpt_xfer_fifo

[function] [call site] 00111


                     usbd_edpt_xfer

[function] [call site] 00112


                   stream_release

[function] [call site] 00113


                     usbd_edpt_release

[function] [call site] 00114


                       tu_edpt_release

[function] [call site] 00115


             tud_cdc_n_read

[function] [call site] 00116


             tud_cdc_n_read_flush

[function] [call site] 00117


               tu_fifo_clear

[function] [call site] 00118


               tu_edpt_stream_read_xfer

[function] [call site] 00119


             tud_cdc_n_peek

[function] [call site] 00120


               tu_fifo_peek

[function] [call site] 00121


                 ff_peek_local

[function] [call site] 00122


             tud_cdc_n_write

[function] [call site] 00123


               tu_edpt_stream_write

[function] [call site] 00124


                 tu_fifo_write_n_access_mode

[function] [call site] 00125


                   ff_push_n

[function] [call site] 00126


                 tu_edpt_stream_write_xfer

[function] [call site] 00127


                   stream_claim

[function] [call site] 00128


                   tu_fifo_read_n_access_mode

[function] [call site] 00129


                   stream_xfer

[function] [call site] 00130


                   stream_release

[function] [call site] 00131


             tud_cdc_n_write

[function] [call site] 00132


             strlen

[call site] 00133


             tud_cdc_n_write

[function] [call site] 00134


             tud_cdc_n_write_flush

[function] [call site] 00135


               tu_edpt_stream_write_xfer

[function] [call site] 00136


             tud_cdc_n_write_available

[function] [call site] 00137


               tu_edpt_stream_write_available

[function] [call site] 00138


             tud_cdc_n_write_clear

[function] [call site] 00139


               tu_fifo_clear

[function] [call site] 00140