Fuzz introspector: fuzz-udev-database
For issues and ideas: https://github.com/ossf/fuzz-introspector/issues

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked Calltree index Parent function Callsite Largest blocked function
142 336 path_simplify_full call site: {node_id} pid_get_cmdline_strv
94 177 xfopenat_full call site: {node_id} get_proc_field
90 481 page_size call site: {node_id} read_full_file
57 48 safe_atou_full call site: {node_id} proc_cmdline_parse
43 132 xfopenat_full call site: {node_id} xfopenat_unix_socket
43 768 log_open call site: {node_id} log_open_syslog
40 606 read_full_stream_full call site: {node_id} unbase64mem_full
38 647 read_full_stream_full call site: {node_id} strv_split_full
18 282 path_find_first_component call site: {node_id} path_find_last_component
9 692 log_parse_environment_variables call site: {node_id} log_set_max_level_from_string
9 814 log_open call site: {node_id} open_terminal
8 304 filename_part_is_valid call site: {node_id} path_extract_directory

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 _cleanup_ [function] [call site] 00001
1 _cleanup_ [function] [call site] 00002
1 fuzz_setup_logging [function] [call site] 00003
2 log_set_assert_return_is_critical [function] [call site] 00004
2 log_set_max_level [function] [call site] 00005
3 log_level_is_valid [function] [call site] 00007
3 setlogmask [function] [call site] 00008
3 assert_cc [function] [call site] 00010
2 log_setup [function] [call site] 00012
3 log_parse_environment [function] [call site] 00016
4 should_parse_proc_cmdline [function] [call site] 00017
5 getpid_cached [function] [call site] 00018
6 __atomic_compare_exchange_n [function] [call site] 00019
6 pthread_atfork [function] [call site] 00021
5 invoked_by_systemd [function] [call site] 00023
6 parse_pid [function] [call site] 00025
7 safe_atolu [function] [call site] 00027
8 safe_atolu_full [function] [call site] 00028
9 assert_cc [function] [call site] 00029
9 safe_atou_full [function] [call site] 00030
10 SAFE_ATO_MASK_FLAGS [function] [call site] 00033
10 FLAGS_SET [function] [call site] 00034
10 FLAGS_SET [function] [call site] 00037
10 FLAGS_SET [function] [call site] 00039
10 mangle_base [function] [call site] 00041
11 SAFE_ATO_MASK_FLAGS [function] [call site] 00044
11 STARTSWITH_SET [function] [call site] 00045
11 STARTSWITH_SET [function] [call site] 00046
10 SAFE_ATO_MASK_FLAGS [function] [call site] 00048
7 pid_is_valid [function] [call site] 00049
6 log_debug_errno [function] [call site] 00050
6 getpid_cached [function] [call site] 00051
4 proc_cmdline_parse [function] [call site] 00052
5 proc_cmdline_strv_internal [function] [call site] 00055
6 secure_getenv [function] [call site] 00057
6 detect_container [function] [call site] 00094
7 log_debug_errno [function] [call site] 00096
7 log_debug_errno [function] [call site] 00098
7 read_one_line_file [function] [call site] 00099
8 read_one_line_file_at [function] [call site] 00100
9 fopen_unlocked_at [function] [call site] 00104
10 xfopenat_full [function] [call site] 00105
11 FLAGS_SET [function] [call site] 00132
11 xfopenat_unix_socket [function] [call site] 00133
12 connect_unix_path [function] [call site] 00149
13 connect_unix_inode [function] [call site] 00152
14 connect_unix_path_simple [function] [call site] 00155
14 FORMAT_PROC_FD_PATH [function] [call site] 00166
13 sizeof_field [function] [call site] 00169
13 connect_unix_path_simple [function] [call site] 00170
13 connect_unix_inode [function] [call site] 00172
12 shutdown [function] [call site] 00173
12 take_fdopen [function] [call site] 00174
11 FLAGS_SET [function] [call site] 00176
11 __fsetlocking [function] [call site] 00177
7 log_debug_errno [function] [call site] 00203
7 get_proc_field [function] [call site] 00206
8 fopen_unlocked [function] [call site] 00209
9 fopen_unlocked_at [function] [call site] 00210
8 proc_mounted [function] [call site] 00211
9 path_is_fs_type [function] [call site] 00212
10 is_fs_type_at [function] [call site] 00213
11 xstatfsat [function] [call site] 00214
12 xopenat [function] [call site] 00218
13 xopenat_full [function] [call site] 00219
14 FLAGS_SET [function] [call site] 00222
14 FLAGS_SET [function] [call site] 00223
14 FLAGS_SET [function] [call site] 00226
14 FLAGS_SET [function] [call site] 00227
14 fd_verify_regular [function] [call site] 00228
14 fd_reopen [function] [call site] 00241
15 FLAGS_SET [function] [call site] 00244
15 FLAGS_SET [function] [call site] 00245
15 FLAGS_SET [function] [call site] 00246
15 RET_NERRNO [function] [call site] 00247
15 proc_fd_enoent_errno [function] [call site] 00249
16 proc_mounted [function] [call site] 00250
14 FLAGS_SET [function] [call site] 00251
14 FLAGS_SET [function] [call site] 00252
14 FLAGS_SET [function] [call site] 00255
14 FLAGS_SET [function] [call site] 00256
14 FLAGS_SET [function] [call site] 00257
14 btrfs_subvol_make_fallback [function] [call site] 00258
15 btrfs_subvol_make [function] [call site] 00262
16 extract_subvolume_name [function] [call site] 00266
17 path_extract_filename [function] [call site] 00269
18 path_is_valid [function] [call site] 00270
19 path_is_valid_full [function] [call site] 00271
20 path_find_first_component [function] [call site] 00273
21 skip_slash_or_dot [function] [call site] 00275
22 startswith [function] [call site] 00277
21 strchrnul [function] [call site] 00280
21 skip_slash_or_dot [function] [call site] 00281
18 path_find_last_component [function] [call site] 00283
19 skip_slash_or_dot_backward [function] [call site] 00288
19 PTR_SUB1 [function] [call site] 00293
19 skip_slash_or_dot_backward [function] [call site] 00295
18 TAKE_PTR [function] [call site] 00297
17 btrfs_validate_subvolume_name [function] [call site] 00299
18 filename_is_valid [function] [call site] 00300
19 dot_or_dot_dot [function] [call site] 00302
19 filename_part_is_valid [function] [call site] 00303
20 strchrnul [function] [call site] 00304
17 TAKE_PTR [function] [call site] 00306
16 path_extract_directory [function] [call site] 00307
17 path_find_last_component [function] [call site] 00308
17 strdup_to [function] [call site] 00310
17 path_simplify [function] [call site] 00312
18 path_simplify_full [function] [call site] 00313
19 FLAGS_SET [function] [call site] 00315
19 path_is_absolute [function] [call site] 00322
19 path_find_first_component [function] [call site] 00323
19 path_startswith [function] [call site] 00324
20 path_startswith_full [function] [call site] 00325
21 path_find_first_component [function] [call site] 00328
21 FLAGS_SET [function] [call site] 00329
21 path_find_first_component [function] [call site] 00330
21 FLAGS_SET [function] [call site] 00331
21 FLAGS_SET [function] [call site] 00332
17 path_is_valid [function] [call site] 00337
17 TAKE_PTR [function] [call site] 00338
16 fd_reopen_condition [function] [call site] 00339
16 RET_NERRNO [function] [call site] 00347
15 ERRNO_IS_NOT_SUPPORTED [function] [call site] 00350
14 RET_NERRNO [function] [call site] 00352
14 FLAGS_SET [function] [call site] 00354
14 FLAGS_SET [function] [call site] 00355
14 FLAGS_SET [function] [call site] 00356
14 fd_verify_regular [function] [call site] 00358
14 FLAGS_SET [function] [call site] 00359
14 FLAGS_SET [function] [call site] 00362
14 fd_verify_regular [function] [call site] 00364
14 fd_reopen [function] [call site] 00365
14 openat_report_new [function] [call site] 00366
14 label_ops_post [function] [call site] 00373
14 FLAGS_SET [function] [call site] 00375
14 chattr_fd [function] [call site] 00376
15 chattr_full [function] [call site] 00377
16 ERRNO_IS_IOCTL_NOT_SUPPORTED [function] [call site] 00386
16 FLAGS_SET [function] [call site] 00387
16 UPDATE_FLAG [function] [call site] 00388
16 FLAGS_SET [function] [call site] 00389
16 ERRNO_IS_IOCTL_NOT_SUPPORTED [function] [call site] 00391
16 log_full_errno [function] [call site] 00392
16 FLAGS_SET [function] [call site] 00393
16 ERRNO_IS_IOCTL_NOT_SUPPORTED [function] [call site] 00395
16 ERRNO_IS_IOCTL_NOT_SUPPORTED [function] [call site] 00397
14 ERRNO_IS_IOCTL_NOT_SUPPORTED [function] [call site] 00398
14 label_ops_post [function] [call site] 00400
14 unlinkat [function] [call site] 00401
12 RET_NERRNO [function] [call site] 00402
11 is_fs_type [function] [call site] 00404
12 assert_cc [function] [call site] 00406
12 F_TYPE_EQUAL [function] [call site] 00407
8 read_line [function] [call site] 00408
7 log_debug_errno [function] [call site] 00409
7 parse_pid [function] [call site] 00411
7 log_debug_errno [function] [call site] 00412
7 procfs_file_alloca [function] [call site] 00413
7 read_one_line_file [function] [call site] 00414
7 log_debug_errno [function] [call site] 00415
7 startswith [function] [call site] 00416
7 read_one_line_file [function] [call site] 00417
7 log_debug_errno [function] [call site] 00419
7 getpid_cached [function] [call site] 00420
7 read_one_line_file [function] [call site] 00423
7 log_debug_errno [function] [call site] 00425
7 getenv_for_pid [function] [call site] 00426
8 getpid_cached [function] [call site] 00430
8 strdup_to_full [function] [call site] 00431
8 pid_is_valid [function] [call site] 00433
8 procfs_file_alloca [function] [call site] 00434
8 fopen_unlocked [function] [call site] 00435
8 read_nul_string [function] [call site] 00436
9 read_line_full [function] [call site] 00437
8 startswith [function] [call site] 00438
8 strdup_to_full [function] [call site] 00439
7 log_debug_errno [function] [call site] 00440
7 detect_container_files [function] [call site] 00441
8 log_debug_errno [function] [call site] 00443
7 running_in_pidns [function] [call site] 00444
8 log_debug_errno [function] [call site] 00451
7 log_debug [function] [call site] 00452
7 detect_container_files [function] [call site] 00454
7 container_from_string [function] [call site] 00455
7 log_debug [function] [call site] 00456
7 virtualization_to_string [function] [call site] 00457
6 pid_get_cmdline_strv [function] [call site] 00458
7 pid_get_cmdline_nulstr [function] [call site] 00462
8 procfs_file_alloca [function] [call site] 00463
6 proc_cmdline_filter_pid1_args [function] [call site] 00538
7 STRV_FOREACH [function] [call site] 00543
7 strv_skip [function] [call site] 00544
8 strv_isempty [function] [call site] 00545
8 strv_isempty [function] [call site] 00546
7 strv_extend [function] [call site] 00547
8 strv_extend_with_size [function] [call site] 00548
9 strv_consume_with_size [function] [call site] 00550
10 strv_push_with_size [function] [call site] 00551
11 strv_length [function] [call site] 00552
12 STRV_FOREACH [function] [call site] 00553
7 strv_extend_strv [function] [call site] 00555
7 strv_skip [function] [call site] 00567
6 read_full_file [function] [call site] 00571
7 read_full_file_full [function] [call site] 00572
8 FLAGS_SET [function] [call site] 00575
8 xfopenat_full [function] [call site] 00576
8 read_full_stream_full [function] [call site] 00577
9 FLAGS_SET [function] [call site] 00581
9 FLAGS_SET [function] [call site] 00583
9 FLAGS_SET [function] [call site] 00587
9 warn_file_is_world_accessible [function] [call site] 00588
10 log_syntax [function] [call site] 00590
10 log_warning [function] [call site] 00591
9 FLAGS_SET [function] [call site] 00592
9 FLAGS_SET [function] [call site] 00594
9 memcpy_safe [function] [call site] 00596
9 explicit_bzero_safe [function] [call site] 00597
10 explicit_bzero [function] [call site] 00598
9 MALLOC_SIZEOF_SAFE [function] [call site] 00601
9 errno_or_else [function] [call site] 00605
9 FLAGS_SET [function] [call site] 00607
9 FLAGS_SET [function] [call site] 00610
9 unbase64mem_full [function] [call site] 00612
10 CLEANUP_ERASE_PTR [function] [call site] 00616
10 unbase64_next [function] [call site] 00625
10 unbase64_next [function] [call site] 00626
10 unbase64_next [function] [call site] 00627
10 TAKE_PTR [function] [call site] 00629
9 explicit_bzero_safe [function] [call site] 00643
9 free_and_replace [function] [call site] 00644
9 FLAGS_SET [function] [call site] 00645
9 explicit_bzero_safe [function] [call site] 00648
6 strv_split_full [function] [call site] 00649
4 log_parse_environment_variables [function] [call site] 00686
5 log_set_target_from_string [function] [call site] 00688
6 log_target_from_string [function] [call site] 00689
6 log_set_target [function] [call site] 00690
5 log_warning [function] [call site] 00691
5 log_set_max_level_from_string [function] [call site] 00693
6 extract_first_word [function] [call site] 00694
6 log_level_from_string [function] [call site] 00696
6 log_set_max_level [function] [call site] 00697
6 log_target_from_string [function] [call site] 00699
6 log_level_from_string [function] [call site] 00700
5 log_warning_errno [function] [call site] 00701
5 getenv_bool [function] [call site] 00702
6 parse_boolean [function] [call site] 00704
5 log_warning_errno [function] [call site] 00705
5 log_set_max_level [function] [call site] 00706
5 log_show_color_from_string [function] [call site] 00708
6 parse_boolean [function] [call site] 00709
6 log_show_color [function] [call site] 00710
5 log_warning [function] [call site] 00711
5 log_show_location_from_string [function] [call site] 00713
6 parse_boolean [function] [call site] 00714
6 log_show_location [function] [call site] 00715
5 log_warning [function] [call site] 00716
5 log_show_time_from_string [function] [call site] 00718
6 parse_boolean [function] [call site] 00719
6 log_show_time [function] [call site] 00720
5 log_warning [function] [call site] 00721
5 log_show_tid_from_string [function] [call site] 00723
6 parse_boolean [function] [call site] 00724
6 log_show_tid [function] [call site] 00725
5 log_warning [function] [call site] 00726
5 log_set_ratelimit_kmsg_from_string [function] [call site] 00728
6 parse_boolean [function] [call site] 00729
5 log_warning [function] [call site] 00730
3 log_open [function] [call site] 00731
4 log_close_syslog [function] [call site] 00739
4 log_close_console [function] [call site] 00742
5 safe_close_above_stdio [function] [call site] 00743
6 safe_close [function] [call site] 00744
4 getpid_cached [function] [call site] 00746
4 stderr_is_journal [function] [call site] 00747
5 extract_first_word [function] [call site] 00749
5 safe_atou64 [function] [call site] 00750
6 assert_cc [function] [call site] 00751
6 safe_atollu [function] [call site] 00752
7 safe_atollu_full [function] [call site] 00753
5 safe_atou64 [function] [call site] 00766
4 log_open_journal [function] [call site] 00770
5 create_log_socket [function] [call site] 00771
6 fd_inc_sndbuf [function] [call site] 00779
7 fd_set_sndbuf [function] [call site] 00780
8 getsockopt [function] [call site] 00781
8 setsockopt_int [function] [call site] 00782
9 setsockopt [function] [call site] 00783
8 getsockopt [function] [call site] 00784
8 setsockopt_int [function] [call site] 00785
6 getpid_cached [function] [call site] 00786
6 timeval_store [function] [call site] 00787
6 timeval_store [function] [call site] 00789
6 setsockopt [function] [call site] 00790
5 connect_unix_path [function] [call site] 00791
5 log_close_journal [function] [call site] 00792
4 log_close_syslog [function] [call site] 00793
4 log_close_console [function] [call site] 00794
4 log_open_syslog [function] [call site] 00796
5 create_log_socket [function] [call site] 00797
5 connect_unix_path [function] [call site] 00798
5 safe_close [function] [call site] 00799
5 create_log_socket [function] [call site] 00800
5 connect_unix_path [function] [call site] 00801
5 log_close_syslog [function] [call site] 00802
4 log_close_journal [function] [call site] 00803
4 log_close_console [function] [call site] 00804
4 log_open_kmsg [function] [call site] 00806
5 fd_move_above_stdio [function] [call site] 00808
4 log_close_journal [function] [call site] 00809
4 log_close_syslog [function] [call site] 00810
4 log_close_console [function] [call site] 00811
4 log_close_journal [function] [call site] 00812
4 log_close_syslog [function] [call site] 00813
4 log_open_console [function] [call site] 00814
5 open_terminal [function] [call site] 00815
6 usleep_safe [function] [call site] 00818
7 clock_nanosleep [function] [call site] 00819
7 TIMESPEC_STORE [function] [call site] 00820
6 isatty_safe [function] [call site] 00821
5 fd_move_above_stdio [function] [call site] 00823
3 log_on_console [function] [call site] 00824
3 log_show_color [function] [call site] 00826
1 assert_se [function] [call site] 00827
1 fmkostemp_safe [function] [call site] 00828
2 mkostemp_safe [function] [call site] 00829
3 BLOCK_WITH_UMASK [function] [call site] 00831
3 RET_NERRNO [function] [call site] 00832
2 take_fdopen [function] [call site] 00834
1 assert_se [function] [call site] 00835
1 assert_se [function] [call site] 00838
1 device_new_aux [function] [call site] 00839
1 device_read_db_internal_filename [function] [call site] 00841
2 read_full_file [function] [call site] 00844
2 log_device_debug_errno [function] [call site] 00845
2 log_device_debug [function] [call site] 00847
2 handle_db_line [function] [call site] 00850
3 device_add_tag [function] [call site] 00853
4 set_put_strdup [function] [call site] 00863
4 set_put_strdup [function] [call site] 00864
4 set_remove [function] [call site] 00865
5 _hashmap_remove [function] [call site] 00866
6 bucket_hash [function] [call site] 00867
6 bucket_scan [function] [call site] 00868
6 bucket_at [function] [call site] 00869
7 CAST_ALIGN_PTR [function] [call site] 00870
7 storage_ptr [function] [call site] 00871
6 entry_value [function] [call site] 00872
7 assert_not_reached [function] [call site] 00873
6 remove_entry [function] [call site] 00874
5 HASHMAP_BASE [function] [call site] 00875
3 device_add_devlink [function] [call site] 00877
4 mangle_devname [function] [call site] 00880
5 path_is_safe [function] [call site] 00883
6 path_is_valid_full [function] [call site] 00884
5 path_is_absolute [function] [call site] 00885
5 path_startswith [function] [call site] 00887
5 path_join [function] [call site] 00889
5 path_simplify [function] [call site] 00890
4 set_ensure_consume [function] [call site] 00891
5 set_ensure_put [function] [call site] 00892
6 set_ensure_allocated [function] [call site] 00893
7 hashmap_base_ensure_allocated [function] [call site] 00894
8 hashmap_base_new [function] [call site] 00897
9 assert_se [function] [call site] 00922
9 pthread_once [function] [call site] 00923
9 assert_se [function] [call site] 00924
9 pthread_mutex_lock [function] [call site] 00925
9 LIST_PREPEND [function] [call site] 00926
9 assert_se [function] [call site] 00927
9 pthread_mutex_unlock [function] [call site] 00928
6 set_put [function] [call site] 00929
7 bucket_hash [function] [call site] 00931
7 bucket_scan [function] [call site] 00932
7 bucket_at_swap [function] [call site] 00933
7 hashmap_put_boldly [function] [call site] 00934
5 struct [call site] 00935
3 device_add_property_internal_from_string [function] [call site] 00937
4 device_add_property_aux [function] [call site] 00943
5 ordered_hashmap_ensure_allocated [function] [call site] 00946
6 hashmap_base_ensure_allocated [function] [call site] 00947
5 ordered_hashmap_get2 [function] [call site] 00950
6 hashmap_get2 [function] [call site] 00951
7 bucket_hash [function] [call site] 00952
7 bucket_scan [function] [call site] 00953
7 plain_bucket_at [function] [call site] 00954
8 bucket_at [function] [call site] 00955
8 HASHMAP_BASE [function] [call site] 00956
6 PLAIN_HASHMAP [function] [call site] 00957
5 ordered_hashmap_replace [function] [call site] 00958
6 hashmap_replace [function] [call site] 00959
7 bucket_hash [function] [call site] 00961
7 bucket_scan [function] [call site] 00962
7 plain_bucket_at [function] [call site] 00963
7 hashmap_set_dirty [function] [call site] 00964
7 bucket_at_swap [function] [call site] 00965
7 hashmap_put_boldly [function] [call site] 00966
6 PLAIN_HASHMAP [function] [call site] 00967
5 ordered_hashmap_remove2 [function] [call site] 00970
6 hashmap_remove2 [function] [call site] 00971
7 bucket_hash [function] [call site] 00972
7 bucket_scan [function] [call site] 00973
7 plain_bucket_at [function] [call site] 00974
7 remove_entry [function] [call site] 00975
6 PLAIN_HASHMAP [function] [call site] 00976
4 device_add_property_aux [function] [call site] 00977
3 safe_atou64 [function] [call site] 00978
3 device_set_usec_initialized [function] [call site] 00979
4 device_add_property_internal [function] [call site] 00982
5 device_add_property_aux [function] [call site] 00983
3 safe_atou [function] [call site] 00989
4 safe_atou_full [function] [call site] 00990
3 log_device_debug [function] [call site] 00991
2 log_device_debug_errno [function] [call site] 00992
2 log_device_debug_errno [function] [call site] 00993
2 SYNTHETIC_ERRNO [function] [call site] 00994