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
1174 1174 1 :

['idn_encode']

1174 1362 url_parse call site: 00316 /src/wget/src/url.c:950
725 2055 19 :

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

725 2055 register_x86_padlock_crypto call site: 00000 /src/gnutls/lib/accelerated/x86/x86-common.c:388
472 472 12 :

['fseek', 'pthread_rwlock_wrlock', 'cfg_apply', 'ini_parse_file', 'gnutls_strerror', 'ini_ctx_deinit', 'construct_system_wide_priority_string', 'fclose', '_name_val_array_clear', 'fopen', '_gnutls_buffer_clear', 'update_system_wide_priority_string']

604 604 _gnutls_update_system_priorities call site: 00000 /src/gnutls/lib/priority.c:2314
52 52 1 :

['reencode_escapes']

1234 1926 url_parse call site: 00267 /src/wget/src/url.c:764
48 48 1 :

['capabilities_to_intel_cpuid']

440 1304 register_x86_intel_crypto call site: 00000 /src/gnutls/lib/accelerated/x86/x86-common.c:911
35 39 2 :

['rpl_free', 'c_strcasecmp']

35 57 set_uri_encoding call site: 00127 /src/wget/src/iri.c:424
18 18 1 :

['_gnutls_asn2err']

40 40 _gnutls_global_init call site: 00000 /src/gnutls/lib/global.c:293
16 16 1 :

['_asn1_delete_list_and_nodes']

16 16 asn1_array2tree call site: 00000 /src/gnutls/lib/minitasn1/structure.c:272
12 12 2 :

['atoi', '_gnutls_log']

22 1558 lib_init call site: 00000 /src/gnutls/lib/global.c:503
10 10 1 :

['_gnutls_log']

10 10 register_x86_intel_crypto call site: 00000 /src/gnutls/lib/accelerated/x86/x86-common.c:1170
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 _setjmp [call site] 00003
1 get_urls_css [function] [call site] 00004
2 yy_scan_bytes [function] [call site] 00005
3 yy_fatal_error [function] [call site] 00007
4 fprintf [call site] 00008
4 exit_wget [function] [call site] 00009
5 longjmp [call site] 00010
3 yy_scan_buffer [function] [call site] 00011
4 yy_fatal_error [function] [call site] 00013
4 yy_switch_to_buffer [function] [call site] 00014
5 yyensure_buffer_stack [function] [call site] 00015
6 yy_fatal_error [function] [call site] 00017
6 yyrealloc [function] [call site] 00018
7 realloc [call site] 00019
6 yy_fatal_error [function] [call site] 00020
5 yy_load_buffer_state [function] [call site] 00021
3 yy_fatal_error [function] [call site] 00022
2 yylex [function] [call site] 00023
3 yyensure_buffer_stack [function] [call site] 00024
3 yy_create_buffer [function] [call site] 00025
4 yy_fatal_error [function] [call site] 00027
4 yy_fatal_error [function] [call site] 00029
4 yy_init_buffer [function] [call site] 00030
5 __errno_location [call site] 00031
5 yy_flush_buffer [function] [call site] 00032
6 yy_load_buffer_state [function] [call site] 00033
5 __errno_location [call site] 00034
3 yy_load_buffer_state [function] [call site] 00035
3 fwrite [call site] 00036
3 yy_get_previous_state [function] [call site] 00037
3 yy_try_NUL_trans [function] [call site] 00038
3 yy_get_next_buffer [function] [call site] 00039
4 yy_fatal_error [function] [call site] 00040
4 yyrealloc [function] [call site] 00041
4 yy_fatal_error [function] [call site] 00042
4 getc [call site] 00043
4 yy_fatal_error [function] [call site] 00044
4 yyrestart [function] [call site] 00045
5 yyensure_buffer_stack [function] [call site] 00046
5 yy_create_buffer [function] [call site] 00047
5 yy_init_buffer [function] [call site] 00048
5 yy_load_buffer_state [function] [call site] 00049
4 yyrealloc [function] [call site] 00050
4 yy_fatal_error [function] [call site] 00051
3 yy_get_previous_state [function] [call site] 00052
3 yy_get_previous_state [function] [call site] 00053
3 yy_fatal_error [function] [call site] 00054
2 get_uri_string [function] [call site] 00056
3 strncasecmp [call site] 00057
3 __ctype_b_loc [call site] 00058
3 __ctype_b_loc [call site] 00059
3 xstrndup [function] [call site] 00060
4 strndup [call site] 00061
4 xalloc_die [function] [call site] 00062
5 dgettext [call site] 00063
5 abort [call site] 00064
2 append_url [function] [call site] 00068
3 url_has_scheme [function] [call site] 00069
3 set_uri_encoding [function] [call site] 00078
4 quote [function] [call site] 00079
5 quote_n [function] [call site] 00080
6 quote_n_mem [function] [call site] 00081
7 quotearg_n_options [function] [call site] 00082
8 __errno_location [call site] 00083
8 abort [call site] 00084
8 xpalloc [function] [call site] 00085
9 xalloc_die [function] [call site] 00086
9 xrealloc [function] [call site] 00087
10 realloc [call site] 00088
10 xalloc_die [function] [call site] 00089
8 quotearg_buffer_restyled [function] [call site] 00090
9 __ctype_get_mb_cur_max [call site] 00091
9 gettext_quote [function] [call site] 00092
10 dgettext [call site] 00093
10 locale_charset [function] [call site] 00094
11 nl_langinfo [call site] 00095
10 c_strcasecmp [function] [call site] 00096
11 c_tolower [function] [call site] 00097
11 c_tolower [function] [call site] 00098
10 c_strcasecmp [function] [call site] 00099
9 gettext_quote [function] [call site] 00100
9 strlen [call site] 00101
9 abort [call site] 00102
9 strlen [call site] 00103
9 memcmp [call site] 00104
9 __ctype_b_loc [call site] 00105
9 strlen [call site] 00106
9 rpl_mbrtowc [function] [call site] 00107
10 mbrtowc [call site] 00108
10 hard_locale [function] [call site] 00109
11 setlocale_null_r [function] [call site] 00110
12 setlocale_null_unlocked [function] [call site] 00111
13 setlocale_null_androidfix [function] [call site] 00112
14 setlocale [call site] 00113
13 strlen [call site] 00114
11 strcmp [call site] 00115
9 iswprint [call site] 00116
9 mbsinit [call site] 00117
9 quotearg_buffer_restyled [function] [call site] 00118
10 quotearg_buffer_restyled [function] [call site] 00119
8 rpl_free [function] [call site] 00120
9 __errno_location [call site] 00121
9 __errno_location [call site] 00122
8 quotearg_buffer_restyled [function] [call site] 00125
8 __errno_location [call site] 00126
4 debug_logprintf [function] [call site] 00127
5 log_vprintf_internal [function] [call site] 00128
6 get_log_fp [function] [call site] 00129
6 get_warc_log_fp [function] [call site] 00130
6 vfprintf [call site] 00131
6 vsnprintf [call site] 00132
6 saved_append [function] [call site] 00135
7 strchr [call site] 00136
7 strlen [call site] 00137
7 saved_append_1 [function] [call site] 00138
8 free_log_line [function] [call site] 00139
8 strlen [call site] 00144
8 strlen [call site] 00146
6 fputs [call site] 00148
6 fputs [call site] 00149
6 logflush [function] [call site] 00151
7 get_log_fp [function] [call site] 00152
7 get_warc_log_fp [function] [call site] 00153
7 rpl_fflush [function] [call site] 00154
8 __freading [call site] 00155
8 fflush [call site] 00156
8 clear_ungetc_buffer_preserving_position [function] [call site] 00157
9 rpl_fseeko [function] [call site] 00158
10 fileno [call site] 00159
10 fseeko [call site] 00160
8 fflush [call site] 00161
7 rpl_fflush [function] [call site] 00162
4 c_strcasecmp [function] [call site] 00163
3 debug_logprintf [function] [call site] 00166
3 gettext [call site] 00167
3 logprintf [function] [call site] 00168
4 __errno_location [call site] 00169
4 check_redirect_output [function] [call site] 00170
5 tcgetpgrp [call site] 00171
5 getpgrp [call site] 00172
5 redirect_output [function] [call site] 00173
6 fprintf [call site] 00174
6 unique_create [function] [call site] 00175
7 unique_name [function] [call site] 00176
8 file_exists_p [function] [call site] 00177
9 __errno_location [call site] 00178
9 stat [call site] 00179
9 getuid [call site] 00180
9 group_member [call site] 00181
9 __errno_location [call site] 00182
9 __errno_location [call site] 00183
7 fopen_excl [function] [call site] 00185
8 open [call site] 00186
8 fdopen [call site] 00187
7 __errno_location [call site] 00188
7 unique_name [function] [call site] 00190
6 gettext [call site] 00193
6 log_dump_context [function] [call site] 00195
7 get_log_fp [function] [call site] 00196
7 get_warc_log_fp [function] [call site] 00197
7 fputs [call site] 00198
7 fputs [call site] 00199
7 fputs [call site] 00200
7 fputs [call site] 00201
7 rpl_fflush [function] [call site] 00202
7 rpl_fflush [function] [call site] 00203
6 gettext [call site] 00204
6 __errno_location [call site] 00205
6 gettext [call site] 00206
6 log_dump_context [function] [call site] 00208
6 log_dump_context [function] [call site] 00209
5 redirect_output [function] [call site] 00210
4 __errno_location [call site] 00211
4 log_vprintf_internal [function] [call site] 00212
4 __errno_location [call site] 00213
4 exit_wget [function] [call site] 00214
3 url_parse [function] [call site] 00220
4 url_scheme [function] [call site] 00221
5 strlen [call site] 00222
5 c_strncasecmp [function] [call site] 00223
4 url_has_scheme [function] [call site] 00224
4 c_strncasecmp [function] [call site] 00225
4 c_strncasecmp [function] [call site] 00226
4 remote_to_utf8 [function] [call site] 00227
5 c_strcasecmp [function] [call site] 00228
5 strdup [call site] 00229
5 strlen [call site] 00230
5 do_conversion [function] [call site] 00231
6 gettext [call site] 00232
6 logprintf [function] [call site] 00234
6 url_unescape_except_reserved [function] [call site] 00236
7 url_unescape_1 [function] [call site] 00237
6 iconv [call site] 00241
6 iconv [call site] 00242
6 debug_logprintf [function] [call site] 00244
6 debug_logprintf [function] [call site] 00245
6 __errno_location [call site] 00246
6 gettext [call site] 00247
6 logprintf [function] [call site] 00248
6 __errno_location [call site] 00249
6 gettext [call site] 00251
6 logprintf [function] [call site] 00252
6 iconv_close [call site] 00254
6 strchr [call site] 00255
6 debug_logprintf [function] [call site] 00256
6 debug_logprintf [function] [call site] 00257
5 strcmp [call site] 00258
4 reencode_escapes [function] [call site] 00262
5 char_needs_escaping [function] [call site] 00263
6 c_isxdigit [function] [call site] 00264
5 char_needs_escaping [function] [call site] 00266
4 reencode_escapes [function] [call site] 00268
4 strlen [call site] 00269
4 url_skip_credentials [function] [call site] 00270
5 strpbrk [call site] 00271
4 init_seps [function] [call site] 00272
4 strchr [call site] 00273
4 is_valid_ipv6_address [function] [call site] 00274
5 c_isxdigit [function] [call site] 00275
5 is_valid_ipv4_address [function] [call site] 00277
4 strpbrk_or_eos [function] [call site] 00278
5 strpbrk [call site] 00279
5 strchr [call site] 00280
4 scheme_default_port [function] [call site] 00281
4 strpbrk_or_eos [function] [call site] 00282
4 c_isdigit [function] [call site] 00283
4 strpbrk_or_eos [function] [call site] 00284
4 strpbrk_or_eos [function] [call site] 00285
4 strpbrk_or_eos [function] [call site] 00286
4 strpbrk_or_eos [function] [call site] 00287
4 parse_credentials [function] [call site] 00288
5 memchr [call site] 00289
5 strdupdelim [function] [call site] 00290
5 url_unescape [function] [call site] 00291
6 url_unescape_1 [function] [call site] 00292
5 strdupdelim [function] [call site] 00293
5 url_unescape [function] [call site] 00294
4 xcalloc [function] [call site] 00295
5 calloc [call site] 00296
4 strdupdelim [function] [call site] 00298
4 strdupdelim [function] [call site] 00299
4 path_simplify [function] [call site] 00300
5 strchr [call site] 00301
4 split_path [function] [call site] 00302
5 strrchr [call site] 00303
5 strdupdelim [function] [call site] 00306
5 url_unescape [function] [call site] 00308
5 url_unescape [function] [call site] 00309
4 lowercase_str [function] [call site] 00310
4 strchr [call site] 00313
4 url_unescape [function] [call site] 00314
4 c_iscntrl [function] [call site] 00315
4 idn_encode [function] [call site] 00328
5 remote_to_utf8 [function] [call site] 00329
5 idn2_lookup_u8 [function] [call site] 00330
6 set_default_flags [function] [call site] 00331
6 _tr46 [function] [call site] 00332
7 u8_strlen [function] [call site] 00333
8 strlen [call site] 00334
7 u8_to_u32 [function] [call site] 00335
8 u8_mbtoucr [function] [call site] 00336
8 realloc [call site] 00337
8 __errno_location [call site] 00338
8 realloc [call site] 00339
7 __errno_location [call site] 00340
7 get_idna_map [function] [call site] 00341
8 bsearch [call site] 00342
8 _compare_idna_map [function] [call site] 00343
9 _fill_map [function] [call site] 00344
8 bsearch [call site] 00345
8 _compare_idna_map [function] [call site] 00346
8 bsearch [call site] 00347
8 _compare_idna_map [function] [call site] 00348
8 _fill_map [function] [call site] 00349
7 get_idna_map [function] [call site] 00360
7 get_map_data [function] [call site] 00363
7 get_map_data [function] [call site] 00367
7 get_map_data [function] [call site] 00370
7 u32_normalize [function] [call site] 00372
8 u32_mbtouc_unsafe [function] [call site] 00373
8 abort [call site] 00374
8 uc_combining_class [function] [call site] 00375
8 gl_uninorm_decompose_merge_sort_inplace [function] [call site] 00376
9 gl_uninorm_decompose_merge_sort_inplace [function] [call site] 00377
10 gl_uninorm_decompose_merge_sort_fromto [function] [call site] 00378
11 gl_uninorm_decompose_merge_sort_fromto [function] [call site] 00379
12 gl_uninorm_decompose_merge_sort_fromto [function] [call site] 00380
8 u32_uctomb [function] [call site] 00383
8 __errno_location [call site] 00384
8 abort [call site] 00385
8 __errno_location [call site] 00386
8 __errno_location [call site] 00387
8 realloc [call site] 00389
8 __errno_location [call site] 00390
8 u32_uctomb [function] [call site] 00391
8 __errno_location [call site] 00392
8 abort [call site] 00393
8 abort [call site] 00394
8 __errno_location [call site] 00395
8 __errno_location [call site] 00396
8 realloc [call site] 00397
8 abort [call site] 00398
8 __errno_location [call site] 00399
8 __errno_location [call site] 00400
7 __errno_location [call site] 00402
7 u32_to_u8 [function] [call site] 00403
8 u8_uctomb [function] [call site] 00404
8 __errno_location [call site] 00405
8 realloc [call site] 00406
8 __errno_location [call site] 00407
8 u8_uctomb [function] [call site] 00408
8 __errno_location [call site] 00409
8 realloc [call site] 00410
7 __errno_location [call site] 00412
7 _idn2_punycode_decode_internal [function] [call site] 00413
7 _idn2_label_test [function] [call site] 00418
8 u32_normalize [function] [call site] 00419
8 __errno_location [call site] 00420
8 memcmp [call site] 00421
8 uc_is_general_category [function] [call site] 00423
9 bitmap_lookup [function] [call site] 00424
8 _idn2_disallowed_p [function] [call site] 00425
9 property [function] [call site] 00426
10 bsearch [call site] 00427
10 _compare [function] [call site] 00428
8 get_idna_map [function] [call site] 00429
8 _idn2_contextj_p [function] [call site] 00432
8 _idn2_contextj_rule [function] [call site] 00434
9 _idn2_contextj_p [function] [call site] 00435
9 uc_combining_class [function] [call site] 00436
9 uc_joining_type [function] [call site] 00437
10 uc_is_general_category_withtable [function] [call site] 00438
11 lookup_withtable [function] [call site] 00439
9 uc_joining_type [function] [call site] 00440
9 uc_combining_class [function] [call site] 00441
8 _idn2_contexto_p [function] [call site] 00442
8 _idn2_contexto_p [function] [call site] 00444
8 _idn2_contexto_with_rule [function] [call site] 00445
8 _idn2_contexto_rule [function] [call site] 00446
9 _idn2_contexto_p [function] [call site] 00447
9 _uc_script_name [function] [call site] 00448
10 uc_script [function] [call site] 00449
9 strcmp [call site] 00450
9 _uc_script_name [function] [call site] 00451
9 strcmp [call site] 00452
9 _uc_script_name [function] [call site] 00453
9 strcmp [call site] 00454
9 _uc_script_name [function] [call site] 00455
9 strcmp [call site] 00456
9 _uc_script_name [function] [call site] 00457
9 strcmp [call site] 00458
8 _idn2_unassigned_p [function] [call site] 00459
8 _idn2_bidi [function] [call site] 00461
9 _isBidi [function] [call site] 00462
10 uc_bidi_category [function] [call site] 00463
11 uc_bidi_class [function] [call site] 00464
9 uc_bidi_category [function] [call site] 00465
9 uc_bidi_category [function] [call site] 00466
9 uc_bidi_category [function] [call site] 00467
8 get_idna_map [function] [call site] 00468
7 _idn2_label_test [function] [call site] 00473
7 u32_to_u8 [function] [call site] 00474
7 __errno_location [call site] 00476
6 strchrnul [call site] 00478
6 label [function] [call site] 00479
7 _idn2_ascii_p [function] [call site] 00480
7 memcmp [call site] 00481
7 _idn2_punycode_decode_internal [function] [call site] 00482
7 u32_to_u8 [function] [call site] 00483
7 _idn2_u8_to_u32_nfc [function] [call site] 00484
8 u8_to_u32 [function] [call site] 00485
8 __errno_location [call site] 00486
8 _isNFC [function] [call site] 00487
9 uc_combining_class [function] [call site] 00488
9 get_nfcqc_map [function] [call site] 00489
10 _compare_nfcqc_map [function] [call site] 00490
8 u32_normalize [function] [call site] 00491
8 __errno_location [call site] 00493
7 _idn2_label_test [function] [call site] 00494
7 _idn2_punycode_encode_internal [function] [call site] 00495
8 encode_digit [function] [call site] 00496
8 encode_digit [function] [call site] 00497
7 c_strncasecmp [function] [call site] 00499
7 _idn2_punycode_decode_internal [function] [call site] 00502
5 idn2_lookup_u8 [function] [call site] 00510
5 gettext [call site] 00511
5 idn2_strerror [function] [call site] 00512
5 logprintf [function] [call site] 00514
4 strdupdelim [function] [call site] 00520
4 strdupdelim [function] [call site] 00521
4 strdupdelim [function] [call site] 00522
4 url_string [function] [call site] 00523
5 full_path_length [function] [call site] 00524
6 strlen [call site] 00525
6 strlen [call site] 00526
6 strlen [call site] 00527
5 url_escape_allow_passthrough [function] [call site] 00528
5 url_escape_allow_passthrough [function] [call site] 00532
5 url_escape_allow_passthrough [function] [call site] 00533
5 unescape_single_char [function] [call site] 00534
5 strchr [call site] 00535
5 strlen [call site] 00536
5 strlen [call site] 00537
5 strlen [call site] 00539
5 strlen [call site] 00540
5 strlen [call site] 00542
5 strlen [call site] 00543
5 strlen [call site] 00544
5 strlen [call site] 00545
5 number_to_string [function] [call site] 00546
5 full_path_write [function] [call site] 00547
6 strlen [call site] 00548
6 strlen [call site] 00549
6 strlen [call site] 00550
3 debug_logprintf [function] [call site] 00557
3 uri_merge [function] [call site] 00559
4 url_has_scheme [function] [call site] 00560
4 path_end [function] [call site] 00562
5 url_scheme [function] [call site] 00563
5 init_seps [function] [call site] 00564
5 strpbrk_or_eos [function] [call site] 00565
4 strlen [call site] 00566
4 strchr [call site] 00569
4 strlen [call site] 00570
4 memchr [call site] 00572
4 memchr [call site] 00574
4 memrchr [call site] 00576
3 quotearg_n_style [function] [call site] 00578
4 quoting_options_from_style [function] [call site] 00579
4 quotearg_n_options [function] [call site] 00580
3 debug_logprintf [function] [call site] 00581
3 url_parse [function] [call site] 00582
3 debug_logprintf [function] [call site] 00583
3 debug_logprintf [function] [call site] 00589
2 debug_logprintf [function] [call site] 00591
2 get_uri_string [function] [call site] 00593
2 append_url [function] [call site] 00594
2 debug_logprintf [function] [call site] 00595
2 yylex_destroy [function] [call site] 00601
3 yy_delete_buffer [function] [call site] 00602
3 yypop_buffer_state [function] [call site] 00603
4 yy_delete_buffer [function] [call site] 00604
4 yy_load_buffer_state [function] [call site] 00605
3 yy_init_globals [function] [call site] 00607
2 debug_logprintf [function] [call site] 00608