Fuzz introspector: json_object_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
472 0 EP call site: 00000 json_tokener_parse

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 json_tokener_parse [function] [call site] 00001
2 json_tokener_parse_verbose [function] [call site] 00002
3 json_tokener_new [function] [call site] 00003
4 json_tokener_new_ex [function] [call site] 00004
5 calloc [call site] 00005
5 calloc [call site] 00006
5 printbuf_new [function] [call site] 00007
6 calloc [call site] 00008
5 json_tokener_reset [function] [call site] 00009
6 json_tokener_reset_level [function] [call site] 00010
7 json_object_put [function] [call site] 00011
8 __assert_fail [call site] 00012
8 json_object_object_delete [function] [call site] 00013
9 JC_OBJECT [function] [call site] 00014
9 lh_table_free [function] [call site] 00015
9 json_object_generic_delete [function] [call site] 00016
10 printbuf_free [function] [call site] 00017
8 json_object_array_delete [function] [call site] 00018
9 array_list_free [function] [call site] 00020
9 json_object_generic_delete [function] [call site] 00021
8 json_object_string_delete [function] [call site] 00022
9 JC_STRING [function] [call site] 00023
9 JC_STRING [function] [call site] 00024
9 json_object_generic_delete [function] [call site] 00025
8 json_object_generic_delete [function] [call site] 00026
3 json_tokener_parse_ex [function] [call site] 00027
4 uselocale [call site] 00028
4 strlen [call site] 00029
4 duplocale [call site] 00030
4 __errno_location [call site] 00031
4 newlocale [call site] 00032
4 freelocale [call site] 00033
4 uselocale [call site] 00034
4 json_tokener_validate_utf8 [function] [call site] 00035
4 is_ws_char [function] [call site] 00036
4 json_tokener_validate_utf8 [function] [call site] 00037
4 printbuf_reset [function] [call site] 00038
4 printbuf_memappend [function] [call site] 00039
5 __errno_location [call site] 00040
5 printbuf_extend [function] [call site] 00041
6 __errno_location [call site] 00042
6 realloc [call site] 00043
4 json_object_new_object [function] [call site] 00044
5 json_object_new [function] [call site] 00045
5 json_object_object_to_json_string [function] [call site] 00046
6 printbuf_memappend [function] [call site] 00047
6 json_object_get_object [function] [call site] 00048
7 JC_OBJECT_C [function] [call site] 00049
6 lh_table_head [function] [call site] 00050
6 lh_entry_k [function] [call site] 00051
6 lh_entry_v [function] [call site] 00052
6 printbuf_memappend [function] [call site] 00053
6 printbuf_memappend [function] [call site] 00054
6 printbuf_memappend [function] [call site] 00055
6 indent [function] [call site] 00056
7 printbuf_memset [function] [call site] 00057
8 __errno_location [call site] 00058
8 printbuf_extend [function] [call site] 00059
7 printbuf_memset [function] [call site] 00060
6 printbuf_memappend [function] [call site] 00061
6 printbuf_memappend [function] [call site] 00062
6 strlen [call site] 00063
6 json_escape_str [function] [call site] 00064
7 printbuf_memappend [function] [call site] 00065
7 printbuf_memappend [function] [call site] 00066
7 printbuf_memappend [function] [call site] 00067
7 printbuf_memappend [function] [call site] 00068
7 printbuf_memappend [function] [call site] 00069
7 printbuf_memappend [function] [call site] 00070
7 printbuf_memappend [function] [call site] 00071
7 printbuf_memappend [function] [call site] 00072
7 printbuf_memappend [function] [call site] 00073
7 printbuf_memappend [function] [call site] 00074
7 snprintf [call site] 00075
7 printbuf_memappend [function] [call site] 00076
7 printbuf_memappend [function] [call site] 00077
6 printbuf_memappend [function] [call site] 00078
6 printbuf_memappend [function] [call site] 00079
6 printbuf_memappend [function] [call site] 00080
6 printbuf_memappend [function] [call site] 00081
6 printbuf_memappend [function] [call site] 00082
6 printbuf_memappend [function] [call site] 00083
6 printbuf_memappend [function] [call site] 00084
6 lh_entry_next [function] [call site] 00085
6 printbuf_memappend [function] [call site] 00086
6 printbuf_memappend [function] [call site] 00088
6 printbuf_memappend [function] [call site] 00089
5 lh_kchar_table_new [function] [call site] 00090
6 lh_table_new [function] [call site] 00091
7 __assert_fail [call site] 00092
7 calloc [call site] 00093
7 calloc [call site] 00094
6 lh_char_equal [function] [call site] 00095
7 strcmp [call site] 00096
5 json_object_lh_entry_free [function] [call site] 00097
6 lh_entry_k_is_constant [function] [call site] 00098
6 lh_entry_k [function] [call site] 00099
6 lh_entry_v [function] [call site] 00100
6 json_object_put [function] [call site] 00101
5 json_object_generic_delete [function] [call site] 00102
5 __errno_location [call site] 00103
4 json_object_new_array [function] [call site] 00104
5 json_object_new_array_ext [function] [call site] 00105
6 json_object_new [function] [call site] 00106
6 json_object_array_to_json_string [function] [call site] 00107
7 printbuf_memappend [function] [call site] 00108
7 json_object_array_length [function] [call site] 00109
8 json_object_get_type [function] [call site] 00110
8 __assert_fail [call site] 00111
8 JC_ARRAY_C [function] [call site] 00112
8 array_list_length [function] [call site] 00113
7 printbuf_memappend [function] [call site] 00114
7 printbuf_memappend [function] [call site] 00115
7 printbuf_memappend [function] [call site] 00116
7 json_object_array_get_idx [function] [call site] 00118
8 json_object_get_type [function] [call site] 00119
8 __assert_fail [call site] 00120
8 JC_ARRAY_C [function] [call site] 00121
8 array_list_get_idx [function] [call site] 00122
7 printbuf_memappend [function] [call site] 00123
7 printbuf_memappend [function] [call site] 00124
7 printbuf_memappend [function] [call site] 00125
7 printbuf_memappend [function] [call site] 00126
7 printbuf_memappend [function] [call site] 00128
7 printbuf_memappend [function] [call site] 00129
6 array_list_new2 [function] [call site] 00130
6 json_object_array_entry_free [function] [call site] 00131
7 json_object_put [function] [call site] 00132
4 printbuf_reset [function] [call site] 00133
4 printbuf_reset [function] [call site] 00134
4 printbuf_reset [function] [call site] 00135
4 printbuf_reset [function] [call site] 00136
4 printbuf_reset [function] [call site] 00137
4 json_object_get [function] [call site] 00138
5 __assert_fail [call site] 00139
4 json_tokener_reset_level [function] [call site] 00140
4 json_tokener_validate_utf8 [function] [call site] 00141
4 json_object_new_double [function] [call site] 00142
5 json_object_new [function] [call site] 00143
5 json_object_double_to_json_string [function] [call site] 00144
6 json_object_double_to_json_string_format [function] [call site] 00145
7 JC_DOUBLE [function] [call site] 00146
7 snprintf [call site] 00147
7 snprintf [call site] 00148
7 snprintf [call site] 00149
7 snprintf [call site] 00150
7 strchr [call site] 00151
7 strchr [call site] 00152
7 strstr [call site] 00153
7 strchr [call site] 00154
7 strcat [call site] 00155
7 printbuf_memappend [function] [call site] 00156
4 printbuf_memappend [function] [call site] 00157
4 strncasecmp [call site] 00158
4 strncmp [call site] 00159
4 strncasecmp [call site] 00160
4 strncmp [call site] 00161
4 json_object_new_double [function] [call site] 00162
4 printbuf_memappend [function] [call site] 00163
4 json_tokener_validate_utf8 [function] [call site] 00164
4 printbuf_memappend [function] [call site] 00165
4 printbuf_memappend [function] [call site] 00166
4 json_tokener_validate_utf8 [function] [call site] 00167
4 printbuf_memappend [function] [call site] 00168
4 printbuf_memappend [function] [call site] 00169
4 printbuf_memappend [function] [call site] 00170
4 printbuf_memappend [function] [call site] 00171
4 json_object_new_string_len [function] [call site] 00172
5 _json_object_new_string [function] [call site] 00173
6 json_object_new [function] [call site] 00174
6 json_object_string_to_json_string [function] [call site] 00175
7 JC_STRING [function] [call site] 00176
7 printbuf_memappend [function] [call site] 00177
7 printbuf_memappend [function] [call site] 00178
7 get_string_component [function] [call site] 00179
8 get_string_component_mutable [function] [call site] 00180
9 JC_STRING_C [function] [call site] 00181
9 JC_STRING [function] [call site] 00182
9 JC_STRING [function] [call site] 00183
7 json_escape_str [function] [call site] 00184
7 printbuf_memappend [function] [call site] 00185
7 printbuf_memappend [function] [call site] 00186
4 printbuf_memappend [function] [call site] 00187
4 json_tokener_validate_utf8 [function] [call site] 00188
4 printbuf_memappend [function] [call site] 00189
4 printbuf_memappend [function] [call site] 00190
4 printbuf_memappend [function] [call site] 00191
4 printbuf_memappend [function] [call site] 00192
4 printbuf_memappend [function] [call site] 00193
4 printbuf_memappend [function] [call site] 00194
4 printbuf_memappend [function] [call site] 00195
4 is_hex_char [function] [call site] 00196
4 json_tokener_validate_utf8 [function] [call site] 00197
4 printbuf_memappend [function] [call site] 00198
4 printbuf_memappend [function] [call site] 00199
4 printbuf_memappend [function] [call site] 00200
4 printbuf_memappend [function] [call site] 00201
4 printbuf_memappend [function] [call site] 00202
4 printbuf_memappend [function] [call site] 00203
4 printbuf_memappend [function] [call site] 00204
4 printbuf_memappend [function] [call site] 00205
4 printbuf_memappend [function] [call site] 00206
4 printbuf_memappend [function] [call site] 00207
4 strncasecmp [call site] 00208
4 strncmp [call site] 00209
4 json_object_new_boolean [function] [call site] 00210
5 json_object_new [function] [call site] 00211
5 json_object_boolean_to_json_string [function] [call site] 00212
6 printbuf_memappend [function] [call site] 00213
6 printbuf_memappend [function] [call site] 00215
6 printbuf_memappend [function] [call site] 00216
6 printbuf_memappend [function] [call site] 00217
4 strncasecmp [call site] 00218
4 strncmp [call site] 00219
4 json_object_new_boolean [function] [call site] 00220
4 strchr [call site] 00221
4 strchr [call site] 00222
4 json_tokener_validate_utf8 [function] [call site] 00223
4 printbuf_memappend [function] [call site] 00224
4 is_ws_char [function] [call site] 00225
4 printbuf_memappend [function] [call site] 00226
4 json_parse_int64 [function] [call site] 00227
5 __errno_location [call site] 00228
5 strtoll [call site] 00229
5 __errno_location [call site] 00230
5 __errno_location [call site] 00231
4 __errno_location [call site] 00232
4 json_object_new_int64 [function] [call site] 00233
5 json_object_new [function] [call site] 00234
5 json_object_int_to_json_string [function] [call site] 00235
6 snprintf [call site] 00238
6 snprintf [call site] 00240
6 strlen [call site] 00241
6 printbuf_memappend [function] [call site] 00242
4 json_parse_uint64 [function] [call site] 00243
5 __errno_location [call site] 00244
5 strtoull [call site] 00245
5 __errno_location [call site] 00246
5 __errno_location [call site] 00247
4 __errno_location [call site] 00248
4 json_object_new_int64 [function] [call site] 00249
4 json_object_new_uint64 [function] [call site] 00250
5 json_object_new [function] [call site] 00251
5 json_object_int_to_json_string [function] [call site] 00252
4 json_tokener_parse_double [function] [call site] 00253
5 strtod [call site] 00254
4 json_object_new_double_s [function] [call site] 00255
5 json_object_new_double [function] [call site] 00256
5 strdup [call site] 00257
5 json_object_generic_delete [function] [call site] 00258
5 __errno_location [call site] 00259
5 json_object_set_serializer [function] [call site] 00260
6 json_object_set_userdata [function] [call site] 00261
7 __assert_fail [call site] 00262
5 _json_object_userdata_to_json_string [function] [call site] 00263
6 json_object_userdata_to_json_string [function] [call site] 00264
7 strlen [call site] 00265
7 printbuf_memappend [function] [call site] 00266
5 json_object_free_userdata [function] [call site] 00267
4 json_object_array_shrink [function] [call site] 00268
5 json_abort [function] [call site] 00269
6 fprintf [call site] 00270
6 abort [call site] 00271
5 array_list_shrink [function] [call site] 00273
6 array_list_expand_internal [function] [call site] 00274
7 realloc [call site] 00275
6 realloc [call site] 00276
4 json_tokener_reset_level [function] [call site] 00277
4 json_object_array_add [function] [call site] 00278
5 json_object_get_type [function] [call site] 00279
5 __assert_fail [call site] 00280
5 array_list_add [function] [call site] 00282
6 array_list_expand_internal [function] [call site] 00283
4 json_object_array_shrink [function] [call site] 00284
4 printbuf_reset [function] [call site] 00285
4 printbuf_memappend [function] [call site] 00286
4 strdup [call site] 00287
4 printbuf_memappend [function] [call site] 00288
4 json_tokener_validate_utf8 [function] [call site] 00289
4 printbuf_memappend [function] [call site] 00290
4 json_tokener_reset_level [function] [call site] 00291
4 json_object_object_add [function] [call site] 00292
5 json_object_object_add_ex [function] [call site] 00293
6 json_object_get_type [function] [call site] 00294
6 __assert_fail [call site] 00295
6 JC_OBJECT [function] [call site] 00296
6 lh_get_hash [function] [call site] 00297
6 JC_OBJECT [function] [call site] 00298
6 lh_table_lookup_entry_w_hash [function] [call site] 00299
6 strdup [call site] 00300
6 JC_OBJECT [function] [call site] 00301
6 lh_table_insert_w_hash [function] [call site] 00302
7 lh_table_resize [function] [call site] 00303
8 lh_table_new [function] [call site] 00304
8 lh_get_hash [function] [call site] 00305
8 lh_table_insert_w_hash [function] [call site] 00306
8 lh_table_free [function] [call site] 00307
6 lh_entry_v [function] [call site] 00308
6 json_object_put [function] [call site] 00309
6 lh_entry_set_val [function] [call site] 00310
4 uselocale [call site] 00311
4 freelocale [call site] 00312
4 json_object_get [function] [call site] 00313
4 json_tokener_reset_level [function] [call site] 00314
3 json_object_put [function] [call site] 00315
3 json_tokener_free [function] [call site] 00316
4 json_tokener_reset [function] [call site] 00317
4 printbuf_free [function] [call site] 00318
1 json_object_get_boolean [function] [call site] 00319
1 json_object_get_double [function] [call site] 00327
2 JC_DOUBLE_C [function] [call site] 00328
2 json_abort [function] [call site] 00332
2 JC_BOOL_C [function] [call site] 00333
2 __errno_location [call site] 00334
2 get_string_component [function] [call site] 00335
2 strtod [call site] 00336
2 get_string_component [function] [call site] 00337
2 __errno_location [call site] 00338
2 __errno_location [call site] 00339
2 __errno_location [call site] 00340
2 __errno_location [call site] 00341
1 json_object_get_int [function] [call site] 00342
2 __errno_location [call site] 00343
2 get_string_component [function] [call site] 00345
2 json_parse_int64 [function] [call site] 00346
2 __errno_location [call site] 00347
2 __errno_location [call site] 00348
2 JC_DOUBLE_C [function] [call site] 00349
2 __errno_location [call site] 00350
2 __errno_location [call site] 00351
2 __errno_location [call site] 00352
2 JC_BOOL_C [function] [call site] 00353
1 json_object_get_int64 [function] [call site] 00354
2 __errno_location [call site] 00355
2 __errno_location [call site] 00357
2 json_abort [function] [call site] 00358
2 JC_DOUBLE_C [function] [call site] 00359
2 __errno_location [call site] 00360
2 JC_DOUBLE_C [function] [call site] 00361
2 __errno_location [call site] 00362
2 JC_DOUBLE_C [function] [call site] 00363
2 __errno_location [call site] 00364
2 JC_DOUBLE_C [function] [call site] 00365
2 JC_BOOL_C [function] [call site] 00366
2 get_string_component [function] [call site] 00367
2 json_parse_int64 [function] [call site] 00368
1 json_object_get_uint64 [function] [call site] 00369
2 __errno_location [call site] 00370
2 __errno_location [call site] 00372
2 json_abort [function] [call site] 00373
2 JC_DOUBLE_C [function] [call site] 00374
2 __errno_location [call site] 00375
2 JC_DOUBLE_C [function] [call site] 00376
2 __errno_location [call site] 00377
2 JC_DOUBLE_C [function] [call site] 00378
2 __errno_location [call site] 00379
2 JC_DOUBLE_C [function] [call site] 00380
2 JC_BOOL_C [function] [call site] 00381
2 get_string_component [function] [call site] 00382
2 json_parse_uint64 [function] [call site] 00383
1 json_object_get_string [function] [call site] 00384
2 get_string_component [function] [call site] 00385
2 json_object_to_json_string [function] [call site] 00386
3 json_object_to_json_string_ext [function] [call site] 00387
4 json_object_to_json_string_length [function] [call site] 00388
5 printbuf_new [function] [call site] 00389
5 printbuf_reset [function] [call site] 00390
1 json_object_get_string_len [function] [call site] 00391
2 JC_STRING_C [function] [call site] 00392
2 _json_object_get_string_len [function] [call site] 00393
1 json_object_get_object [function] [call site] 00394
1 json_object_get_array [function] [call site] 00395
2 JC_ARRAY_C [function] [call site] 00396
1 json_object_get_type [function] [call site] 00397
1 json_c_visit [function] [call site] 00398
2 _json_c_visit [function] [call site] 00399
3 fprintf [call site] 00400
3 json_object_get_type [function] [call site] 00401
3 json_object_get_object [function] [call site] 00402
3 lh_table_head [function] [call site] 00403
3 lh_entry_k [function] [call site] 00404
3 lh_entry_v [function] [call site] 00405
3 lh_entry_next [function] [call site] 00406
3 _json_c_visit [function] [call site] 00407
4 fprintf [call site] 00408
4 json_object_array_length [function] [call site] 00409
4 json_object_array_get_idx [function] [call site] 00410
4 _json_c_visit [function] [call site] 00411
5 fprintf [call site] 00412
5 json_object_get_type [function] [call site] 00413
5 fprintf [call site] 00414
5 fprintf [call site] 00415
1 emit_object(json_object*, int, json_object*, char const*, unsigned long*, void*) [function] [call site] 00416
1 json_object_set_int [function] [call site] 00417
2 json_object_set_int64 [function] [call site] 00418
1 json_object_set_int64 [function] [call site] 00421
1 json_object_set_uint64 [function] [call site] 00422
1 json_object_set_double [function] [call site] 00425
2 JC_DOUBLE [function] [call site] 00426
2 json_object_set_serializer [function] [call site] 00427
1 json_object_set_string [function] [call site] 00428
2 strlen [call site] 00429
2 _json_object_set_string_len [function] [call site] 00430
3 JC_STRING [function] [call site] 00431
3 JC_STRING [function] [call site] 00432
3 JC_STRING [function] [call site] 00433
3 get_string_component_mutable [function] [call site] 00434
3 JC_STRING [function] [call site] 00435
3 JC_STRING [function] [call site] 00436
3 JC_STRING [function] [call site] 00437
3 JC_STRING [function] [call site] 00438
3 JC_STRING [function] [call site] 00439
1 json_object_set_boolean [function] [call site] 00440
1 json_object_set_string_len [function] [call site] 00442
2 _json_object_set_string_len [function] [call site] 00443
1 json_object_deep_copy [function] [call site] 00444
2 __errno_location [call site] 00445
2 json_object_deep_copy_recursive [function] [call site] 00446
3 __errno_location [call site] 00447
3 __assert_fail [call site] 00448
3 json_object_get_object [function] [call site] 00449
3 lh_table_head [function] [call site] 00450
3 lh_entry_k [function] [call site] 00451
3 lh_entry_v [function] [call site] 00452
3 json_object_deep_copy_recursive [function] [call site] 00453
4 json_object_put [function] [call site] 00454
4 json_object_object_add [function] [call site] 00455
4 json_object_put [function] [call site] 00456
4 lh_entry_next [function] [call site] 00457
4 json_object_array_length [function] [call site] 00458
4 json_object_array_get_idx [function] [call site] 00459
4 json_object_deep_copy_recursive [function] [call site] 00460
5 json_object_put [function] [call site] 00461
5 json_object_array_add [function] [call site] 00462
5 json_object_put [function] [call site] 00463
5 json_object_copy_serializer_data [function] [call site] 00464
6 __assert_fail [call site] 00465
6 strdup [call site] 00466
6 _json_c_set_last_err [function] [call site] 00467
7 vsnprintf [call site] 00468
6 _json_c_set_last_err [function] [call site] 00469
2 json_object_put [function] [call site] 00470
1 json_object_put [function] [call site] 00471
1 json_object_put [function] [call site] 00472