Fuzz introspector: json-c-json-c-0.17-20230812/fuzz/tokener_parse_ex_fuzzer.cc
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
283 0 EP call site: 00000 json_tokener_parse_ex

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 reinterpret_cast<const [call site] 00001
1 json_tokener_new [function] [call site] 00002
2 json_tokener_new_ex [function] [call site] 00003
3 calloc [function] [call site] 00004
4 nalloc_fail [function] [call site] 00005
5 __sync_fetch_and_add [function] [call site] 00006
5 __sync_fetch_and_sub [function] [call site] 00007
5 nalloc_random_update [function] [call site] 00008
5 nalloc_random_update [function] [call site] 00009
5 nalloc_random_update [function] [call site] 00010
5 nalloc_backtrace_exclude [function] [call site] 00011
6 __sanitizer_print_stack_trace [function] [call site] 00013
5 __sync_fetch_and_sub [function] [call site] 00014
5 __sync_fetch_and_sub [function] [call site] 00015
5 __sync_fetch_and_sub [function] [call site] 00016
4 nalloc_calloc [function] [call site] 00017
3 json_tokener_reset [function] [call site] 00028
4 json_tokener_reset_level [function] [call site] 00029
5 json_object_put [function] [call site] 00030
6 __sync_sub_and_fetch [function] [call site] 00032
6 struct [call site] 00033
6 json_object_object_delete [function] [call site] 00034
7 JC_OBJECT [function] [call site] 00039
7 json_object_generic_delete [function] [call site] 00040
6 json_object_array_delete [function] [call site] 00045
7 array_list_free [function] [call site] 00046
7 json_object_generic_delete [function] [call site] 00051
6 json_object_string_delete [function] [call site] 00052
7 JC_STRING [function] [call site] 00053
7 JC_STRING [function] [call site] 00055
7 json_object_generic_delete [function] [call site] 00056
6 json_object_generic_delete [function] [call site] 00057
1 json_tokener_parse_ex [function] [call site] 00059
2 uselocale [function] [call site] 00060
2 duplocale [function] [call site] 00062
2 newlocale [function] [call site] 00063
2 freelocale [function] [call site] 00064
2 freelocale [function] [call site] 00065
2 uselocale [function] [call site] 00066
2 setlocale [function] [call site] 00067
2 setlocale [function] [call site] 00069
2 PEEK_CHAR [function] [call site] 00070
2 is_ws_char [function] [call site] 00071
2 ADVANCE_CHAR [function] [call site] 00072
2 PEEK_CHAR [function] [call site] 00073
2 printbuf_reset [function] [call site] 00074
2 printbuf_memappend_checked [function] [call site] 00075
2 json_object_new_object [function] [call site] 00076
3 JSON_OBJECT_NEW [function] [call site] 00077
3 json_object_generic_delete [function] [call site] 00084
2 json_object_new_array [function] [call site] 00085
3 json_object_new_array_ext [function] [call site] 00086
2 printbuf_reset [function] [call site] 00093
2 printbuf_reset [function] [call site] 00094
2 printbuf_reset [function] [call site] 00095
2 printbuf_reset [function] [call site] 00096
2 printbuf_reset [function] [call site] 00097
2 json_object_get [function] [call site] 00098
3 __sync_add_and_fetch [function] [call site] 00100
2 json_tokener_reset_level [function] [call site] 00101
2 ADVANCE_CHAR [function] [call site] 00102
2 PEEK_CHAR [function] [call site] 00103
2 printbuf_length [function] [call site] 00104
2 json_object_new_double [function] [call site] 00105
3 JSON_OBJECT_NEW [function] [call site] 00106
2 printbuf_memappend_checked [function] [call site] 00107
2 strncasecmp [function] [call site] 00110
2 strncasecmp [function] [call site] 00112
2 json_object_new_double [function] [call site] 00114
2 printbuf_memappend_checked [function] [call site] 00115
2 ADVANCE_CHAR [function] [call site] 00116
2 PEEK_CHAR [function] [call site] 00117
2 printbuf_memappend_checked [function] [call site] 00118
2 printbuf_memappend_checked [function] [call site] 00119
2 ADVANCE_CHAR [function] [call site] 00120
2 PEEK_CHAR [function] [call site] 00121
2 printbuf_memappend_checked [function] [call site] 00122
2 printbuf_memappend_checked [function] [call site] 00123
2 printbuf_memappend_checked [function] [call site] 00125
2 printbuf_memappend_checked [function] [call site] 00127
2 json_object_new_string_len [function] [call site] 00128
3 _json_object_new_string [function] [call site] 00129
2 printbuf_memappend_checked [function] [call site] 00133
2 ADVANCE_CHAR [function] [call site] 00134
2 PEEK_CHAR [function] [call site] 00135
2 printbuf_memappend_checked [function] [call site] 00136
2 printbuf_memappend_checked [function] [call site] 00137
2 printbuf_memappend_checked [function] [call site] 00138
2 printbuf_memappend_checked [function] [call site] 00139
2 printbuf_memappend_checked [function] [call site] 00140
2 printbuf_memappend_checked [function] [call site] 00141
2 printbuf_memappend_checked [function] [call site] 00142
2 is_hex_char [function] [call site] 00143
2 jt_hexdigit [function] [call site] 00144
2 ADVANCE_CHAR [function] [call site] 00145
2 PEEK_CHAR [function] [call site] 00146
2 IS_LOW_SURROGATE [function] [call site] 00147
2 DECODE_SURROGATE_PAIR [function] [call site] 00148
2 printbuf_memappend_checked [function] [call site] 00149
2 printbuf_memappend_checked [function] [call site] 00150
2 printbuf_memappend_checked [function] [call site] 00151
2 IS_HIGH_SURROGATE [function] [call site] 00152
2 IS_LOW_SURROGATE [function] [call site] 00153
2 printbuf_memappend_checked [function] [call site] 00154
2 printbuf_memappend_checked [function] [call site] 00155
2 printbuf_memappend_checked [function] [call site] 00156
2 printbuf_memappend_checked [function] [call site] 00157
2 printbuf_memappend_checked [function] [call site] 00158
2 printbuf_memappend_checked [function] [call site] 00159
2 printbuf_memappend_checked [function] [call site] 00160
2 strncasecmp [function] [call site] 00163
2 json_object_new_boolean [function] [call site] 00165
3 JSON_OBJECT_NEW [function] [call site] 00166
2 strncasecmp [function] [call site] 00167
2 json_object_new_boolean [function] [call site] 00169
2 printbuf_length [function] [call site] 00170
2 printbuf_length [function] [call site] 00173
2 ADVANCE_CHAR [function] [call site] 00174
2 PEEK_CHAR [function] [call site] 00175
2 printbuf_memappend_checked [function] [call site] 00176
2 is_ws_char [function] [call site] 00177
2 printbuf_memappend_checked [function] [call site] 00178
2 printbuf_length [function] [call site] 00179
2 printbuf_length [function] [call site] 00180
2 printbuf_length [function] [call site] 00181
2 printbuf_length [function] [call site] 00182
2 json_parse_int64 [function] [call site] 00183
2 json_object_new_int64 [function] [call site] 00185
3 JSON_OBJECT_NEW [function] [call site] 00186
2 json_parse_uint64 [function] [call site] 00187
2 json_object_new_int64 [function] [call site] 00189
2 json_object_new_uint64 [function] [call site] 00190
3 JSON_OBJECT_NEW [function] [call site] 00191
2 json_tokener_parse_double [function] [call site] 00192
2 printbuf_length [function] [call site] 00194
2 json_object_new_double_s [function] [call site] 00195
3 json_object_new_double [function] [call site] 00196
3 json_object_generic_delete [function] [call site] 00198
3 json_object_set_serializer [function] [call site] 00199
4 json_object_set_userdata [function] [call site] 00200
5 json_object*::_user_delete [function] [call site] 00202
2 json_object_array_shrink [function] [call site] 00203
3 array_list_shrink [function] [call site] 00207
4 array_list_expand_internal [function] [call site] 00208
5 realloc [function] [call site] 00209
6 nalloc_fail [function] [call site] 00210
6 nalloc_realloc [function] [call site] 00211
2 json_tokener_reset_level [function] [call site] 00214
2 json_object_array_add [function] [call site] 00215
3 json_object_get_type [function] [call site] 00217
3 array_list_add [function] [call site] 00218
4 array_list_expand_internal [function] [call site] 00219
2 json_object_array_shrink [function] [call site] 00221
2 printbuf_reset [function] [call site] 00222
2 printbuf_memappend_checked [function] [call site] 00223
2 printbuf_memappend_checked [function] [call site] 00225
2 ADVANCE_CHAR [function] [call site] 00226
2 PEEK_CHAR [function] [call site] 00227
2 printbuf_memappend_checked [function] [call site] 00228
2 json_tokener_reset_level [function] [call site] 00229
2 json_object_object_add [function] [call site] 00230
3 json_object_object_add_ex [function] [call site] 00231
4 json_object_get_type [function] [call site] 00233
4 lh_get_hash [function] [call site] 00234
5 struct [call site] 00235
4 JC_OBJECT [function] [call site] 00236
4 lh_table_lookup_entry_w_hash [function] [call site] 00237
5 struct [call site] 00238
4 JC_OBJECT [function] [call site] 00239
4 lh_table_insert_w_hash [function] [call site] 00241
5 lh_table_resize [function] [call site] 00242
6 lh_table_new [function] [call site] 00243
6 lh_get_hash [function] [call site] 00244
6 lh_table_insert_w_hash [function] [call site] 00245
6 lh_table_free [function] [call site] 00246
4 JC_OBJECT [function] [call site] 00249
4 lh_entry_v [function] [call site] 00250
5 _LH_UNCONST [function] [call site] 00251
4 json_object_put [function] [call site] 00252
4 lh_entry_set_val [function] [call site] 00253
2 ADVANCE_CHAR [function] [call site] 00255
2 uselocale [function] [call site] 00256
2 freelocale [function] [call site] 00257
2 setlocale [function] [call site] 00258
2 json_object_get [function] [call site] 00260
2 json_tokener_reset_level [function] [call site] 00261
1 json_object_get_type [function] [call site] 00263
1 json_object_get_string [function] [call site] 00264
2 get_string_component [function] [call site] 00265
3 get_string_component_mutable [function] [call site] 00266
4 JC_STRING_C [function] [call site] 00267
4 JC_STRING [function] [call site] 00268
4 JC_STRING [function] [call site] 00269
2 json_object_to_json_string [function] [call site] 00270
3 json_object_to_json_string_ext [function] [call site] 00271
4 json_object_to_json_string_length [function] [call site] 00272
5 printbuf_new [function] [call site] 00273
5 printbuf_reset [function] [call site] 00274
5 json_object_to_json_string [function] [call site] 00275
6 json_object_to_json_string_ext [function] [call site] 00276
1 json_object_to_json_string [function] [call site] 00277
1 json_object_put [function] [call site] 00278
1 json_tokener_free [function] [call site] 00279
2 json_tokener_reset [function] [call site] 00280
2 printbuf_free [function] [call site] 00281