Fuzz introspector: libpsl_idn2_load_fuzzer
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
13 209 _idn2_label_test call site: 00209 _idn2_contexto_rule
8 47 libunistring_u8_casemap call site: 00047 u8_mbtouc_unsafe
6 251 _idn2_u8_to_u32_nfc call site: 00251 u32_normalize
5 56 libunistring_u8_casemap call site: 00056 __errno_location
5 81 u8_normalize call site: 00081 __errno_location
5 105 libunistring_u8_casemap call site: 00105 libunistring_rpl_free
4 89 u8_normalize call site: 00089 __errno_location
4 100 u8_normalize call site: 00100 libunistring_rpl_free
3 120 u8_to_u32 call site: 00120 libunistring_rpl_free
2 64 libunistring_u8_casemap call site: 00064 __errno_location
2 70 u8_normalize call site: 00070 abort
2 95 libunistring_rpl_free call site: 00095 __errno_location

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 fmemopen [call site] 00001
1 psl_load_fp [function] [call site] 00002
2 calloc [call site] 00003
2 fgets [call site] 00004
2 strlen [call site] 00005
2 strncmp [call site] 00006
2 atoi [call site] 00007
2 fread [call site] 00008
2 realloc [call site] 00009
2 realloc [call site] 00010
2 GetUtfMode [function] [call site] 00011
2 psl_idna_open [function] [call site] 00012
2 vector_alloc [function] [call site] 00013
3 calloc [call site] 00014
2 suffix_compare_array [function] [call site] 00015
3 suffix_compare [function] [call site] 00016
4 strncmp [call site] 00017
2 psl_idna_close [function] [call site] 00018
2 isspace_ascii [function] [call site] 00019
2 strstr [call site] 00020
2 strstr [call site] 00021
2 strstr [call site] 00022
2 strstr [call site] 00023
2 isspace_ascii [function] [call site] 00024
2 suffix_init [function] [call site] 00025
2 vector_find [function] [call site] 00026
2 vector_get [function] [call site] 00027
2 vector_add [function] [call site] 00028
3 realloc [call site] 00029
2 vector_get [function] [call site] 00030
2 add_punycode_if_needed [function] [call site] 00031
3 str_is_ascii [function] [call site] 00032
3 psl_idna_toASCII [function] [call site] 00033
4 u8_strlen [function] [call site] 00034
5 strlen [call site] 00035
4 u8_tolower [function] [call site] 00036
5 libunistring_u8_casemap [function] [call site] 00037
6 u8_mbtouc_unsafe [function] [call site] 00038
6 libunistring_gl_unicase_special_lookup [function] [call site] 00039
7 gl_unicase_special_hash [function] [call site] 00040
7 memcmp [call site] 00041
6 libunistring_uc_is_cased [function] [call site] 00042
7 bitmap_lookup [function] [call site] 00043
6 u8_mbtouc_unsafe [function] [call site] 00044
6 libunistring_uc_is_case_ignorable [function] [call site] 00045
7 bitmap_lookup [function] [call site] 00046
6 libunistring_uc_is_cased [function] [call site] 00047
6 libunistring_uc_is_cased [function] [call site] 00048
6 uc_is_property_soft_dotted [function] [call site] 00049
7 bitmap_lookup [function] [call site] 00050
6 u8_mbtouc_unsafe [function] [call site] 00051
6 uc_combining_class [function] [call site] 00052
6 u8_mbtouc_unsafe [function] [call site] 00053
6 uc_combining_class [function] [call site] 00054
6 abort [call site] 00055
6 u8_uctomb [function] [call site] 00056
6 __errno_location [call site] 00057
6 abort [call site] 00058
6 __errno_location [call site] 00059
6 __errno_location [call site] 00060
6 u8_cpy [function] [call site] 00061
6 realloc [call site] 00062
6 __errno_location [call site] 00063
6 u8_uctomb [function] [call site] 00064
6 __errno_location [call site] 00065
6 abort [call site] 00066
6 libunistring_uc_is_case_ignorable [function] [call site] 00067
6 uc_combining_class [function] [call site] 00068
6 u8_normalize [function] [call site] 00069
7 u8_mbtouc_unsafe [function] [call site] 00070
7 abort [call site] 00071
7 abort [call site] 00072
7 uc_combining_class [function] [call site] 00073
7 libunistring_gl_uninorm_decompose_merge_sort_inplace [function] [call site] 00074
8 libunistring_gl_uninorm_decompose_merge_sort_inplace [function] [call site] 00075
9 gl_uninorm_decompose_merge_sort_fromto [function] [call site] 00076
10 gl_uninorm_decompose_merge_sort_fromto [function] [call site] 00077
11 gl_uninorm_decompose_merge_sort_fromto [function] [call site] 00078
12 merge [function] [call site] 00079
9 merge [function] [call site] 00080
7 u8_uctomb [function] [call site] 00081
7 __errno_location [call site] 00082
7 abort [call site] 00083
7 __errno_location [call site] 00084
7 __errno_location [call site] 00085
7 u8_cpy [function] [call site] 00086
7 realloc [call site] 00087
7 __errno_location [call site] 00088
7 u8_uctomb [function] [call site] 00089
7 __errno_location [call site] 00090
7 abort [call site] 00091
7 abort [call site] 00092
7 __errno_location [call site] 00093
7 libunistring_rpl_free [function] [call site] 00094
8 __errno_location [call site] 00095
8 __errno_location [call site] 00096
7 __errno_location [call site] 00097
7 realloc [call site] 00098
7 abort [call site] 00099
7 libunistring_rpl_free [function] [call site] 00100
7 __errno_location [call site] 00101
7 libunistring_rpl_free [function] [call site] 00102
7 libunistring_rpl_free [function] [call site] 00103
7 __errno_location [call site] 00104
6 libunistring_rpl_free [function] [call site] 00105
6 __errno_location [call site] 00106
6 realloc [call site] 00107
6 __errno_location [call site] 00108
6 libunistring_rpl_free [function] [call site] 00109
6 __errno_location [call site] 00110
5 uc_tolower [function] [call site] 00111
4 idn2_lookup_u8 [function] [call site] 00112
5 set_default_flags [function] [call site] 00113
5 _tr46 [function] [call site] 00114
6 u8_strlen [function] [call site] 00115
6 u8_to_u32 [function] [call site] 00116
7 u8_mbtoucr [function] [call site] 00117
7 libunistring_rpl_free [function] [call site] 00118
7 __errno_location [call site] 00119
7 realloc [call site] 00120
7 libunistring_rpl_free [function] [call site] 00121
7 __errno_location [call site] 00122
7 __errno_location [call site] 00123
7 realloc [call site] 00124
6 __errno_location [call site] 00125
6 get_idna_map [function] [call site] 00126
7 bsearch [call site] 00127
7 _compare_idna_map [function] [call site] 00128
8 _fill_map [function] [call site] 00129
7 bsearch [call site] 00130
7 _compare_idna_map [function] [call site] 00131
7 bsearch [call site] 00132
7 _compare_idna_map [function] [call site] 00133
7 _fill_map [function] [call site] 00134
6 map_is [function] [call site] 00135
6 rpl_free [function] [call site] 00136
6 map_is [function] [call site] 00137
6 map_is [function] [call site] 00138
6 map_is [function] [call site] 00139
6 map_is [function] [call site] 00140
6 map_is [function] [call site] 00141
6 map_is [function] [call site] 00142
6 rpl_free [function] [call site] 00143
6 rpl_free [function] [call site] 00144
6 get_idna_map [function] [call site] 00145
6 map_is [function] [call site] 00146
6 map_is [function] [call site] 00147
6 get_map_data [function] [call site] 00148
6 map_is [function] [call site] 00149
6 map_is [function] [call site] 00150
6 map_is [function] [call site] 00151
6 get_map_data [function] [call site] 00152
6 map_is [function] [call site] 00153
6 map_is [function] [call site] 00154
6 get_map_data [function] [call site] 00155
6 rpl_free [function] [call site] 00156
6 u32_normalize [function] [call site] 00157
7 u32_mbtouc_unsafe [function] [call site] 00158
7 u32_uctomb [function] [call site] 00159
7 u32_cpy [function] [call site] 00160
7 u32_uctomb [function] [call site] 00161
6 rpl_free [function] [call site] 00162
6 __errno_location [call site] 00163
6 u32_to_u8 [function] [call site] 00164
7 u8_uctomb [function] [call site] 00165
7 libunistring_rpl_free [function] [call site] 00166
7 __errno_location [call site] 00167
7 realloc [call site] 00168
7 libunistring_rpl_free [function] [call site] 00169
7 __errno_location [call site] 00170
7 u8_uctomb [function] [call site] 00171
7 abort [call site] 00172
7 __errno_location [call site] 00173
7 realloc [call site] 00174
6 rpl_free [function] [call site] 00175
6 __errno_location [call site] 00176
6 idn2_punycode_decode [function] [call site] 00177
7 decode_digit [function] [call site] 00178
7 adapt [function] [call site] 00179
6 rpl_free [function] [call site] 00180
6 rpl_free [function] [call site] 00181
6 _idn2_label_test [function] [call site] 00182
7 u32_normalize [function] [call site] 00183
7 __errno_location [call site] 00184
7 memcmp [call site] 00185
7 rpl_free [function] [call site] 00186
7 uc_is_general_category [function] [call site] 00187
8 bitmap_lookup [function] [call site] 00188
7 _idn2_disallowed_p [function] [call site] 00189
8 property [function] [call site] 00190
9 bsearch [call site] 00191
9 _compare [function] [call site] 00192
7 get_idna_map [function] [call site] 00193
7 map_is [function] [call site] 00194
7 map_is [function] [call site] 00195
7 _idn2_contextj_p [function] [call site] 00196
8 property [function] [call site] 00197
7 _idn2_contextj_rule [function] [call site] 00198
8 _idn2_contextj_p [function] [call site] 00199
8 uc_combining_class [function] [call site] 00200
8 uc_joining_type [function] [call site] 00201
9 uc_is_general_category_withtable [function] [call site] 00202
10 lookup_withtable [function] [call site] 00203
8 uc_joining_type [function] [call site] 00204
8 uc_combining_class [function] [call site] 00205
7 _idn2_contexto_p [function] [call site] 00206
8 property [function] [call site] 00207
7 _idn2_contexto_p [function] [call site] 00208
7 _idn2_contexto_with_rule [function] [call site] 00209
7 _idn2_contexto_rule [function] [call site] 00210
8 _idn2_contexto_p [function] [call site] 00211
8 _uc_script_name [function] [call site] 00212
9 uc_script [function] [call site] 00213
8 strcmp [call site] 00214
8 _uc_script_name [function] [call site] 00215
8 strcmp [call site] 00216
8 _uc_script_name [function] [call site] 00217
8 strcmp [call site] 00218
8 _uc_script_name [function] [call site] 00219
8 strcmp [call site] 00220
8 _uc_script_name [function] [call site] 00221
8 strcmp [call site] 00222
7 _idn2_unassigned_p [function] [call site] 00223
8 property [function] [call site] 00224
7 _idn2_bidi [function] [call site] 00225
8 _isBidi [function] [call site] 00226
9 uc_bidi_category [function] [call site] 00227
10 uc_bidi_class [function] [call site] 00228
8 uc_bidi_category [function] [call site] 00229
8 uc_bidi_category [function] [call site] 00230
8 uc_bidi_category [function] [call site] 00231
7 get_idna_map [function] [call site] 00232
7 map_is [function] [call site] 00233
7 map_is [function] [call site] 00234
7 map_is [function] [call site] 00235
6 _idn2_label_test [function] [call site] 00236
6 u32_to_u8 [function] [call site] 00237
6 rpl_free [function] [call site] 00238
6 __errno_location [call site] 00239
6 rpl_free [function] [call site] 00240
5 strchrnul [call site] 00241
5 label [function] [call site] 00242
6 _idn2_ascii_p [function] [call site] 00243
6 memcmp [call site] 00244
6 idn2_punycode_decode [function] [call site] 00245
6 u32_to_u8 [function] [call site] 00246
6 __errno_location [call site] 00247
6 _idn2_u8_to_u32_nfc [function] [call site] 00248
7 u8_to_u32 [function] [call site] 00249
7 __errno_location [call site] 00250
7 _isNFC [function] [call site] 00251
8 uc_combining_class [function] [call site] 00252
8 get_nfcqc_map [function] [call site] 00253
9 bsearch [call site] 00254
9 _compare_nfcqc_map [function] [call site] 00255
7 u32_normalize [function] [call site] 00256
7 rpl_free [function] [call site] 00257
6 _idn2_label_test [function] [call site] 00258
6 idn2_punycode_encode [function] [call site] 00259
7 encode_digit [function] [call site] 00260
7 encode_digit [function] [call site] 00261
7 adapt [function] [call site] 00262
6 c_strncasecmp [function] [call site] 00263
7 c_tolower [function] [call site] 00264
7 c_tolower [function] [call site] 00265
6 idn2_punycode_decode [function] [call site] 00266
6 u32_cmp [function] [call site] 00267
6 rpl_free [function] [call site] 00268
6 rpl_free [function] [call site] 00269
5 rpl_free [function] [call site] 00270
5 rpl_free [function] [call site] 00271
5 rpl_free [function] [call site] 00272
5 rpl_free [function] [call site] 00273
3 strcmp [call site] 00274
3 strlen [call site] 00275
3 suffix_init [function] [call site] 00276
3 vector_add [function] [call site] 00277
3 vector_get [function] [call site] 00278
2 fgets [call site] 00279
2 vector_sort [function] [call site] 00280
3 qsort [call site] 00281
2 psl_idna_close [function] [call site] 00282
2 psl_free [function] [call site] 00283
3 vector_free [function] [call site] 00284
1 psl_is_public_suffix [function] [call site] 00285
2 is_public_suffix [function] [call site] 00286
3 strlen [call site] 00287
3 psl_idna_open [function] [call site] 00288
3 psl_idna_toASCII [function] [call site] 00289
3 strlen [call site] 00290
3 psl_idna_close [function] [call site] 00291
3 LookupStringInFixedSet [function] [call site] 00292
4 GetNextOffset [function] [call site] 00293
4 IsEOL [function] [call site] 00294
4 IsMatch [function] [call site] 00295
5 IsMatchUnchecked [function] [call site] 00296
6 GetMultibyteLength [function] [call site] 00297
4 NextPos [function] [call site] 00298
5 GetMultibyteLength [function] [call site] 00299
5 GetMultibyteLength [function] [call site] 00300
4 IsEOL [function] [call site] 00301
4 IsMatch [function] [call site] 00302
4 NextPos [function] [call site] 00303
4 GetReturnValue [function] [call site] 00304
4 IsEndCharMatch [function] [call site] 00305
5 IsMatchUnchecked [function] [call site] 00306
4 NextPos [function] [call site] 00307
3 strchr [call site] 00308
3 strlen [call site] 00309
3 LookupStringInFixedSet [function] [call site] 00310
3 vector_get [function] [call site] 00311
3 vector_find [function] [call site] 00312
3 vector_get [function] [call site] 00313
3 strchr [call site] 00314
3 strlen [call site] 00315
3 vector_find [function] [call site] 00316
3 vector_get [function] [call site] 00317
1 psl_is_public_suffix [function] [call site] 00318
1 psl_free [function] [call site] 00319
1 fclose [call site] 00320
1 psl_load_file [function] [call site] 00321
2 fopen [call site] 00322
2 psl_load_fp [function] [call site] 00323
2 fclose [call site] 00324