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

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity Unique Reachable Complexities Unique Reachable Functions All non-covered Complexity All Reachable Complexity Function Name Function Callsite Blocked Branch
1186 1186 1 :

['idn_encode']

1186 1374 url_parse call site: 00346 /src/wget/src/url.c:957
774 774 5 :

['load_system_priority_file', 'update_system_wide_priority_string', 'gnutls_strerror', 'construct_system_wide_priority_string', '_gnutls_buffer_clear']

874 874 _gnutls_update_system_priorities call site: 00000 /src/gnutls/lib/priority.c:2286
724 2053 19 :

['capabilities_to_zhaoxin_edx', 'check_avx_movbe', 'check_phe_partial', 'capabilities_to_intel_cpuid', 'check_padlock', 'check_sha', 'check_phe', '_gnutls_priority_update_non_aesni', 'gnutls_crypto_single_cipher_register', 'read_cpuid_vals', 'gnutls_crypto_single_mac_register', 'gnutls_crypto_single_digest_register', 'check_pclmul', 'check_fast_pclmul', '_gnutls_log', 'check_optimized_aes', 'check_ssse3', 'padlock_capability', 'check_phe_sha512']

724 2053 register_x86_padlock_crypto call site: 00000 /src/gnutls/lib/accelerated/x86/x86-common.c:383
52 52 1 :

['reencode_escapes']

1246 2035 url_parse call site: 00294 /src/wget/src/url.c:771
47 47 1 :

['capabilities_to_intel_cpuid']

439 1303 register_x86_intel_crypto call site: 00000 /src/gnutls/lib/accelerated/x86/x86-common.c:817
35 39 2 :

['rpl_free', 'c_strcasecmp']

35 57 set_uri_encoding call site: 00139 /src/wget/src/iri.c:430
18 18 1 :

['_gnutls_asn2err']

40 40 _gnutls_global_init call site: 00000 /src/gnutls/lib/global.c:306
16 16 1 :

['_asn1_delete_list_and_nodes']

16 16 asn1_array2tree call site: 00000 /src/gnutls/lib/minitasn1/structure.c:275
12 12 2 :

['_gnutls_log', 'atoi']

22 1565 lib_init call site: 00000 /src/gnutls/lib/global.c:520
10 10 1 :

['_gnutls_log']

10 10 register_x86_intel_crypto call site: 00000 /src/gnutls/lib/accelerated/x86/x86-common.c:1027
10 10 1 :

['_gnutls_log']

10 10 _algo_register call site: 00000 /src/gnutls/lib/crypto-backend.c:67
10 10 1 :

['_gnutls_log']

10 10 _algo_register call site: 00000 /src/gnutls/lib/crypto-backend.c:87

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 strdup [call site] 00001
1 dup [call site] 00002
1 open [call site] 00003
1 dup2 [call site] 00004
1 close [call site] 00005
1 _setjmp [call site] 00006
1 get_urls_css [function] [call site] 00007
2 yy_scan_bytes [function] [call site] 00008
3 yy_fatal_error [function] [call site] 00010
4 fprintf [call site] 00011
4 exit_wget [function] [call site] 00012
5 longjmp [call site] 00013
3 yy_scan_buffer [function] [call site] 00014
4 yy_fatal_error [function] [call site] 00016
4 yy_switch_to_buffer [function] [call site] 00017
5 yyensure_buffer_stack [function] [call site] 00018
6 yy_fatal_error [function] [call site] 00020
6 yyrealloc [function] [call site] 00021
7 rpl_realloc [function] [call site] 00022
8 realloc [call site] 00023
6 yy_fatal_error [function] [call site] 00024
5 yy_load_buffer_state [function] [call site] 00025
3 yy_fatal_error [function] [call site] 00026
2 yylex [function] [call site] 00027
3 yyensure_buffer_stack [function] [call site] 00028
3 yy_create_buffer [function] [call site] 00029
4 yy_fatal_error [function] [call site] 00031
4 yy_fatal_error [function] [call site] 00033
4 yy_init_buffer [function] [call site] 00034
5 __errno_location [call site] 00035
5 yy_flush_buffer [function] [call site] 00036
6 yy_load_buffer_state [function] [call site] 00037
5 __errno_location [call site] 00038
3 yy_load_buffer_state [function] [call site] 00039
3 fwrite [call site] 00040
3 yy_get_previous_state [function] [call site] 00041
3 yy_try_NUL_trans [function] [call site] 00042
3 yy_get_next_buffer [function] [call site] 00043
4 yy_fatal_error [function] [call site] 00044
4 yyrealloc [function] [call site] 00045
4 yy_fatal_error [function] [call site] 00046
4 getc [call site] 00047
4 ferror [call site] 00048
4 yy_fatal_error [function] [call site] 00049
4 __errno_location [call site] 00050
4 fread [call site] 00051
4 clearerr [call site] 00052
4 yyrestart [function] [call site] 00053
5 yyensure_buffer_stack [function] [call site] 00054
5 yy_create_buffer [function] [call site] 00055
5 yy_init_buffer [function] [call site] 00056
5 yy_load_buffer_state [function] [call site] 00057
4 yyrealloc [function] [call site] 00058
4 yy_fatal_error [function] [call site] 00059
3 yy_get_previous_state [function] [call site] 00060
3 yy_get_previous_state [function] [call site] 00061
3 yy_fatal_error [function] [call site] 00062
2 get_uri_string [function] [call site] 00064
3 strncasecmp [call site] 00065
3 __ctype_b_loc [call site] 00066
3 __ctype_b_loc [call site] 00067
3 xstrndup [function] [call site] 00068
4 strndup [call site] 00069
4 xalloc_die [function] [call site] 00070
5 dgettext [call site] 00071
5 error [call site] 00072
5 abort [call site] 00073
2 xmalloc [function] [call site] 00074
3 check_nonnull [function] [call site] 00075
4 xalloc_die [function] [call site] 00076
2 append_url [function] [call site] 00077
3 url_has_scheme [function] [call site] 00078
3 set_uri_encoding [function] [call site] 00087
4 quote [function] [call site] 00088
5 quote_n [function] [call site] 00089
6 quote_n_mem [function] [call site] 00090
7 quotearg_n_options [function] [call site] 00091
8 __errno_location [call site] 00092
8 abort [call site] 00093
8 xpalloc [function] [call site] 00094
9 xalloc_die [function] [call site] 00095
9 xrealloc [function] [call site] 00096
10 rpl_realloc [function] [call site] 00097
10 xalloc_die [function] [call site] 00098
8 quotearg_buffer_restyled [function] [call site] 00099
9 __ctype_get_mb_cur_max [call site] 00100
9 gettext_quote [function] [call site] 00101
10 dgettext [call site] 00102
10 locale_charset [function] [call site] 00103
11 rpl_nl_langinfo [function] [call site] 00104
12 nl_langinfo [call site] 00105
10 c_strcasecmp [function] [call site] 00106
11 c_tolower [function] [call site] 00107
11 c_tolower [function] [call site] 00108
10 c_strcasecmp [function] [call site] 00109
9 gettext_quote [function] [call site] 00110
9 strlen [call site] 00111
9 abort [call site] 00112
9 strlen [call site] 00113
9 memcmp [call site] 00114
9 __ctype_b_loc [call site] 00115
9 strlen [call site] 00117
9 rpl_mbrtoc32 [function] [call site] 00118
10 mbrtoc32 [call site] 00119
10 hard_locale [function] [call site] 00120
11 setlocale_null_r [function] [call site] 00121
12 setlocale_null_r_unlocked [function] [call site] 00122
13 setlocale_null_unlocked [function] [call site] 00123
14 setlocale [call site] 00124
13 strlen [call site] 00125
11 strcmp [call site] 00126
9 c32isprint [function] [call site] 00127
10 iswprint [call site] 00128
9 mbsinit [call site] 00129
9 quotearg_buffer_restyled [function] [call site] 00130
10 quotearg_buffer_restyled [function] [call site] 00131
8 rpl_free [function] [call site] 00132
9 __errno_location [call site] 00133
9 __errno_location [call site] 00134
8 quotearg_buffer_restyled [function] [call site] 00137
8 __errno_location [call site] 00138
4 debug_logprintf [function] [call site] 00139
5 log_vprintf_internal [function] [call site] 00140
6 get_log_fp [function] [call site] 00141
6 get_warc_log_fp [function] [call site] 00142
6 vfprintf [call site] 00143
6 vsnprintf [call site] 00144
6 saved_append [function] [call site] 00147
7 strchr [call site] 00148
7 strlen [call site] 00149
7 saved_append_1 [function] [call site] 00150
8 free_log_line [function] [call site] 00151
8 strlen [call site] 00156
8 strlen [call site] 00158
6 fputs [call site] 00160
6 fputs [call site] 00161
6 logflush [function] [call site] 00163
7 get_log_fp [function] [call site] 00164
7 get_warc_log_fp [function] [call site] 00165
7 rpl_fflush [function] [call site] 00166
8 __freading [call site] 00167
8 fflush [call site] 00168
8 clear_ungetc_buffer_preserving_position [function] [call site] 00169
9 rpl_fseeko [function] [call site] 00170
10 fileno [call site] 00171
10 lseek [call site] 00172
10 fseeko [call site] 00173
8 fflush [call site] 00174
7 rpl_fflush [function] [call site] 00175
4 c_strcasecmp [function] [call site] 00176
3 debug_logprintf [function] [call site] 00179
3 gettext [call site] 00180
3 logprintf [function] [call site] 00181
4 __errno_location [call site] 00182
4 check_redirect_output [function] [call site] 00183
5 tcgetpgrp [call site] 00184
5 getpgrp [call site] 00185
5 redirect_output [function] [call site] 00186
6 fprintf [call site] 00187
6 unique_create [function] [call site] 00188
7 unique_name [function] [call site] 00189
8 file_exists_p [function] [call site] 00190
9 __errno_location [call site] 00191
9 stat [call site] 00192
9 getuid [call site] 00193
9 group_member [call site] 00194
9 __errno_location [call site] 00195
9 __errno_location [call site] 00196
8 unique_name_1 [function] [call site] 00197
9 strlen [call site] 00198
9 number_to_string [function] [call site] 00200
9 file_exists_p [function] [call site] 00201
7 fopen_excl [function] [call site] 00203
8 open [call site] 00204
8 fdopen [call site] 00205
7 __errno_location [call site] 00206
7 unique_name [function] [call site] 00208
6 gettext [call site] 00211
6 fprintf [call site] 00213
6 log_dump_context [function] [call site] 00214
7 get_log_fp [function] [call site] 00215
7 get_warc_log_fp [function] [call site] 00216
7 fputs [call site] 00217
7 fputs [call site] 00218
7 fputs [call site] 00219
7 fputs [call site] 00220
7 rpl_fflush [function] [call site] 00221
7 rpl_fflush [function] [call site] 00222
6 gettext [call site] 00223
6 __errno_location [call site] 00224
6 strerror [call site] 00225
6 fprintf [call site] 00226
6 gettext [call site] 00227
6 fprintf [call site] 00229
6 log_dump_context [function] [call site] 00230
6 log_dump_context [function] [call site] 00231
5 redirect_output [function] [call site] 00232
4 __errno_location [call site] 00233
4 log_vprintf_internal [function] [call site] 00234
4 __errno_location [call site] 00235
4 exit_wget [function] [call site] 00236
3 url_parse [function] [call site] 00242
4 url_scheme [function] [call site] 00243
5 strlen [call site] 00244
5 c_strncasecmp [function] [call site] 00245
4 url_has_scheme [function] [call site] 00246
4 c_strncasecmp [function] [call site] 00247
4 c_strncasecmp [function] [call site] 00248
4 remote_to_utf8 [function] [call site] 00249
5 c_strcasecmp [function] [call site] 00250
5 strdup [call site] 00251
5 strlen [call site] 00252
5 do_conversion [function] [call site] 00253
6 iconv_open [call site] 00254
6 gettext [call site] 00255
6 logprintf [function] [call site] 00257
6 url_unescape_except_reserved [function] [call site] 00259
7 url_unescape_1 [function] [call site] 00260
6 strlen [call site] 00263
6 iconv [call site] 00265
6 iconv [call site] 00266
6 iconv_close [call site] 00268
6 strchr [call site] 00269
6 debug_logprintf [function] [call site] 00270
6 debug_logprintf [function] [call site] 00271
6 __errno_location [call site] 00272
6 gettext [call site] 00273
6 logprintf [function] [call site] 00274
6 __errno_location [call site] 00275
6 gettext [call site] 00277
6 __errno_location [call site] 00278
6 logprintf [function] [call site] 00279
6 iconv_close [call site] 00281
6 strchr [call site] 00282
6 debug_logprintf [function] [call site] 00283
6 debug_logprintf [function] [call site] 00284
5 strcmp [call site] 00285
4 reencode_escapes [function] [call site] 00289
5 char_needs_escaping [function] [call site] 00290
6 c_isxdigit [function] [call site] 00291
5 char_needs_escaping [function] [call site] 00293
4 reencode_escapes [function] [call site] 00295
4 strlen [call site] 00296
4 url_skip_credentials [function] [call site] 00297
5 c_isalnum [function] [call site] 00298
5 strchr [call site] 00299
5 c_isxdigit [function] [call site] 00300
4 init_seps [function] [call site] 00301
4 strchr [call site] 00302
4 is_valid_ipv6_address [function] [call site] 00303
5 c_isxdigit [function] [call site] 00304
5 is_valid_ipv4_address [function] [call site] 00306
4 strchr [call site] 00307
4 strpbrk_or_eos [function] [call site] 00308
5 strpbrk [call site] 00309
5 strchr [call site] 00310
4 scheme_default_port [function] [call site] 00311
4 strpbrk_or_eos [function] [call site] 00312
4 c_isdigit [function] [call site] 00313
4 strpbrk_or_eos [function] [call site] 00314
4 strpbrk_or_eos [function] [call site] 00315
4 strpbrk_or_eos [function] [call site] 00316
4 strpbrk_or_eos [function] [call site] 00317
4 parse_credentials [function] [call site] 00318
5 memchr [call site] 00319
5 strdupdelim [function] [call site] 00320
5 url_unescape [function] [call site] 00321
6 url_unescape_1 [function] [call site] 00322
5 strdupdelim [function] [call site] 00323
5 url_unescape [function] [call site] 00324
4 xcalloc [function] [call site] 00325
5 calloc [call site] 00326
5 check_nonnull [function] [call site] 00327
4 strdupdelim [function] [call site] 00328
4 strdupdelim [function] [call site] 00329
4 path_simplify [function] [call site] 00330
5 strchr [call site] 00331
4 split_path [function] [call site] 00332
5 strrchr [call site] 00333
5 strdupdelim [function] [call site] 00336
5 url_unescape [function] [call site] 00338
5 url_unescape [function] [call site] 00339
4 lowercase_str [function] [call site] 00340
4 strchr [call site] 00343
4 url_unescape [function] [call site] 00344
4 c_iscntrl [function] [call site] 00345
4 idn_encode [function] [call site] 00358
5 remote_to_utf8 [function] [call site] 00359
5 idn2_lookup_u8 [function] [call site] 00360
6 set_default_flags [function] [call site] 00361
6 _tr46 [function] [call site] 00362
7 u8_strlen [function] [call site] 00363
8 strlen [call site] 00364
7 u8_to_u32 [function] [call site] 00365
8 u8_mbtoucr [function] [call site] 00366
8 __errno_location [call site] 00367
8 realloc [call site] 00368
8 __errno_location [call site] 00369
8 __errno_location [call site] 00370
8 realloc [call site] 00371
7 __errno_location [call site] 00372
7 get_idna_map [function] [call site] 00373
8 bsearch [call site] 00374
8 _compare_idna_map [function] [call site] 00375
9 _fill_map [function] [call site] 00376
8 bsearch [call site] 00377
8 _compare_idna_map [function] [call site] 00378
8 bsearch [call site] 00379
8 _compare_idna_map [function] [call site] 00380
8 _fill_map [function] [call site] 00381
7 get_idna_map [function] [call site] 00392
7 get_map_data [function] [call site] 00395
7 get_map_data [function] [call site] 00399
7 get_map_data [function] [call site] 00402
7 u32_normalize [function] [call site] 00404
8 u32_mbtouc_unsafe [function] [call site] 00405
8 abort [call site] 00406
8 abort [call site] 00407
8 uc_combining_class [function] [call site] 00408
8 gl_uninorm_decompose_merge_sort_inplace [function] [call site] 00409
9 gl_uninorm_decompose_merge_sort_inplace [function] [call site] 00410
10 gl_uninorm_decompose_merge_sort_fromto [function] [call site] 00411
11 gl_uninorm_decompose_merge_sort_fromto [function] [call site] 00412
12 gl_uninorm_decompose_merge_sort_fromto [function] [call site] 00413
8 u32_uctomb [function] [call site] 00416
8 __errno_location [call site] 00417
8 abort [call site] 00418
8 __errno_location [call site] 00419
8 __errno_location [call site] 00420
8 realloc [call site] 00422
8 __errno_location [call site] 00423
8 u32_uctomb [function] [call site] 00424
8 __errno_location [call site] 00425
8 abort [call site] 00426
8 abort [call site] 00427
8 __errno_location [call site] 00428
8 __errno_location [call site] 00429
8 realloc [call site] 00430
8 abort [call site] 00431
8 __errno_location [call site] 00432
8 __errno_location [call site] 00433
7 __errno_location [call site] 00435
7 u32_to_u8 [function] [call site] 00436
8 u8_uctomb [function] [call site] 00437
8 __errno_location [call site] 00438
8 realloc [call site] 00439
8 __errno_location [call site] 00440
8 u8_uctomb [function] [call site] 00441
8 abort [call site] 00442
8 __errno_location [call site] 00443
8 realloc [call site] 00444
7 __errno_location [call site] 00446
7 idn2_punycode_decode [function] [call site] 00447
7 _idn2_label_test [function] [call site] 00451
8 u32_normalize [function] [call site] 00452
8 __errno_location [call site] 00453
8 memcmp [call site] 00454
8 uc_is_general_category [function] [call site] 00456
9 bitmap_lookup [function] [call site] 00457
8 _idn2_disallowed_p [function] [call site] 00458
9 property [function] [call site] 00459
10 bsearch [call site] 00460
10 _compare [function] [call site] 00461
8 get_idna_map [function] [call site] 00462
8 _idn2_contextj_p [function] [call site] 00465
8 _idn2_contextj_rule [function] [call site] 00467
9 _idn2_contextj_p [function] [call site] 00468
9 uc_combining_class [function] [call site] 00469
9 uc_joining_type [function] [call site] 00470
10 uc_is_general_category_withtable [function] [call site] 00471
11 lookup_withtable [function] [call site] 00472
9 uc_joining_type [function] [call site] 00473
9 uc_combining_class [function] [call site] 00474
8 _idn2_contexto_p [function] [call site] 00475
8 _idn2_contexto_p [function] [call site] 00477
8 _idn2_contexto_with_rule [function] [call site] 00478
8 _idn2_contexto_rule [function] [call site] 00479
9 _idn2_contexto_p [function] [call site] 00480
9 _uc_script_name [function] [call site] 00481
10 uc_script [function] [call site] 00482
9 strcmp [call site] 00483
9 _uc_script_name [function] [call site] 00484
9 strcmp [call site] 00485
9 _uc_script_name [function] [call site] 00486
9 strcmp [call site] 00487
9 _uc_script_name [function] [call site] 00488
9 strcmp [call site] 00489
9 _uc_script_name [function] [call site] 00490
9 strcmp [call site] 00491
8 _idn2_unassigned_p [function] [call site] 00492
8 _idn2_bidi [function] [call site] 00494
9 _isBidi [function] [call site] 00495
10 uc_bidi_category [function] [call site] 00496
11 uc_bidi_class [function] [call site] 00497
9 uc_bidi_category [function] [call site] 00498
9 uc_bidi_category [function] [call site] 00499
9 uc_bidi_category [function] [call site] 00500
8 get_idna_map [function] [call site] 00501
7 _idn2_label_test [function] [call site] 00505
7 u32_to_u8 [function] [call site] 00506
7 __errno_location [call site] 00508
6 strchrnul [call site] 00510
6 label [function] [call site] 00511
7 _idn2_ascii_p [function] [call site] 00512
7 memcmp [call site] 00513
7 idn2_punycode_decode [function] [call site] 00514
7 u32_to_u8 [function] [call site] 00515
7 __errno_location [call site] 00516
7 _idn2_u8_to_u32_nfc [function] [call site] 00517
8 u8_to_u32 [function] [call site] 00518
8 __errno_location [call site] 00519
8 _isNFC [function] [call site] 00520
9 uc_combining_class [function] [call site] 00521
9 get_nfcqc_map [function] [call site] 00522
10 bsearch [call site] 00523
10 _compare_nfcqc_map [function] [call site] 00524
8 u32_normalize [function] [call site] 00525
8 __errno_location [call site] 00527
7 _idn2_label_test [function] [call site] 00528
7 idn2_punycode_encode [function] [call site] 00529
8 encode_digit [function] [call site] 00530
8 encode_digit [function] [call site] 00531
7 c_strncasecmp [function] [call site] 00533
7 idn2_punycode_decode [function] [call site] 00536
5 idn2_lookup_u8 [function] [call site] 00544
5 gettext [call site] 00545
5 idn2_strerror [function] [call site] 00546
5 logprintf [function] [call site] 00548
4 strdupdelim [function] [call site] 00554
4 strdupdelim [function] [call site] 00555
4 strdupdelim [function] [call site] 00556
4 url_string [function] [call site] 00557
5 full_path_length [function] [call site] 00558
6 strlen [call site] 00559
6 strlen [call site] 00560
6 strlen [call site] 00561
5 url_escape_allow_passthrough [function] [call site] 00562
5 url_escape_allow_passthrough [function] [call site] 00566
5 url_escape_allow_passthrough [function] [call site] 00567
5 unescape_single_char [function] [call site] 00568
5 strchr [call site] 00569
5 strlen [call site] 00570
5 strlen [call site] 00571
5 strlen [call site] 00573
5 strlen [call site] 00574
5 strlen [call site] 00576
5 strlen [call site] 00577
5 strlen [call site] 00578
5 strlen [call site] 00579
5 number_to_string [function] [call site] 00580
5 full_path_write [function] [call site] 00581
6 strlen [call site] 00582
6 strlen [call site] 00583
6 strlen [call site] 00584
3 debug_logprintf [function] [call site] 00591
3 uri_merge [function] [call site] 00593
4 url_has_scheme [function] [call site] 00594
4 path_end [function] [call site] 00596
5 url_scheme [function] [call site] 00597
5 init_seps [function] [call site] 00598
5 strpbrk_or_eos [function] [call site] 00599
4 strlen [call site] 00600
4 strchr [call site] 00603
4 strlen [call site] 00604
4 memchr [call site] 00606
4 memchr [call site] 00608
4 memrchr [call site] 00610
3 quotearg_n_style [function] [call site] 00612
4 quoting_options_from_style [function] [call site] 00613
5 abort [call site] 00614
4 quotearg_n_options [function] [call site] 00615
3 debug_logprintf [function] [call site] 00617
3 url_parse [function] [call site] 00618
3 debug_logprintf [function] [call site] 00619
3 debug_logprintf [function] [call site] 00625
2 debug_logprintf [function] [call site] 00627
2 get_uri_string [function] [call site] 00629
2 append_url [function] [call site] 00630
2 debug_logprintf [function] [call site] 00631
2 yylex_destroy [function] [call site] 00637
3 yy_delete_buffer [function] [call site] 00638
3 yypop_buffer_state [function] [call site] 00639
4 yy_delete_buffer [function] [call site] 00640
4 yy_load_buffer_state [function] [call site] 00641
3 yy_init_globals [function] [call site] 00643
2 debug_logprintf [function] [call site] 00644
1 dup2 [call site] 00650
1 close [call site] 00651