Fuzz introspector: config_read_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
43 234 config_setting_set_int64_elem call site: 00234 config_setting_set_int64_elem
28 139 libconfig_yy_delete_buffer call site: 00139 config_setting_add
19 101 libconfig_scanctx_take_string call site: 00101 libconfig_scanctx_push_include
14 46 libconfig_yyensure_buffer_stack call site: 00046 libconfig_yy_create_buffer
12 87 libconfig_strbuf_append_char call site: 00087 libconfig_scanctx_take_string
12 199 __config_list_add call site: 00199 config_setting_add
10 127 libconfig_parse_integer call site: 00127 libconfig_parse_integer
7 223 config_setting_set_int_elem call site: 00223 config_setting_set_int64_elem
6 293 config_setting_set_string call site: 00293 config_setting_add
5 283 config_setting_set_float call site: 00283 config_setting_set_string_elem
4 215 config_setting_set_bool_elem call site: 00215 config_setting_set_int_elem
3 24 libconfig_strdup call site: 00024 libconfig_strvec_append

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 open_null_file [function] [call site] 00001
2 fopen [call site] 00002
2 abort [call site] 00003
1 config_init [function] [call site] 00004
2 config_clear [function] [call site] 00005
3 __config_setting_destroy [function] [call site] 00006
4 config_setting_is_aggregate [function] [call site] 00007
4 __config_list_destroy [function] [call site] 00008
5 __config_setting_destroy [function] [call site] 00009
3 libconfig_strvec_delete [function] [call site] 00010
3 libconfig_calloc [function] [call site] 00011
4 calloc [call site] 00012
4 libconfig_fatal_error [function] [call site] 00013
1 fuzz_data_content [function] [call site] 00014
1 fuzz_data_path [function] [call site] 00015
1 config_read_string [function] [call site] 00016
2 __config_read [function] [call site] 00017
3 config_clear [function] [call site] 00018
3 __config_locale_override [function] [call site] 00019
4 newlocale [call site] 00020
4 uselocale [call site] 00021
3 libconfig_scanctx_init [function] [call site] 00022
4 libconfig_strdup [function] [call site] 00023
5 strdup [call site] 00024
5 libconfig_fatal_error [function] [call site] 00025
4 libconfig_strvec_append [function] [call site] 00026
5 libconfig_realloc [function] [call site] 00027
6 realloc [call site] 00028
6 libconfig_fatal_error [function] [call site] 00029
3 libconfig_scanctx_current_filename [function] [call site] 00030
3 libconfig_yylex_init_extra [function] [call site] 00031
4 libconfig_yyset_extra [function] [call site] 00032
4 __errno_location [call site] 00033
4 libconfig_yyalloc [function] [call site] 00034
5 libconfig_malloc [function] [call site] 00035
6 libconfig_fatal_error [function] [call site] 00036
4 __errno_location [call site] 00037
4 libconfig_yyset_extra [function] [call site] 00038
4 yy_init_globals [function] [call site] 00039
3 libconfig_yyrestart [function] [call site] 00040
4 libconfig_yyensure_buffer_stack [function] [call site] 00041
5 libconfig_yyalloc [function] [call site] 00042
5 yy_fatal_error [function] [call site] 00043
6 fprintf [call site] 00044
6 exit [call site] 00045
5 libconfig_yyrealloc [function] [call site] 00046
6 libconfig_realloc [function] [call site] 00047
5 yy_fatal_error [function] [call site] 00048
4 libconfig_yy_create_buffer [function] [call site] 00049
5 libconfig_yyalloc [function] [call site] 00050
5 yy_fatal_error [function] [call site] 00051
5 libconfig_yyalloc [function] [call site] 00052
5 yy_fatal_error [function] [call site] 00053
5 libconfig_yy_init_buffer [function] [call site] 00054
6 __errno_location [call site] 00055
6 libconfig_yy_flush_buffer [function] [call site] 00056
7 libconfig_yy_load_buffer_state [function] [call site] 00057
6 __errno_location [call site] 00058
4 libconfig_yy_init_buffer [function] [call site] 00059
4 libconfig_yy_load_buffer_state [function] [call site] 00060
3 libconfig_yy_scan_string [function] [call site] 00061
4 strlen [call site] 00062
4 libconfig_yy_scan_bytes [function] [call site] 00063
5 libconfig_yyalloc [function] [call site] 00064
5 yy_fatal_error [function] [call site] 00065
5 libconfig_yy_scan_buffer [function] [call site] 00066
6 libconfig_yyalloc [function] [call site] 00067
6 yy_fatal_error [function] [call site] 00068
6 libconfig_yy_switch_to_buffer [function] [call site] 00069
7 libconfig_yyensure_buffer_stack [function] [call site] 00070
7 libconfig_yy_load_buffer_state [function] [call site] 00071
5 yy_fatal_error [function] [call site] 00072
3 libconfig_yyset_lineno [function] [call site] 00073
4 yy_fatal_error [function] [call site] 00074
3 libconfig_yyparse [function] [call site] 00075
4 libconfig_malloc [function] [call site] 00076
4 libconfig_yylex [function] [call site] 00077
5 libconfig_yyensure_buffer_stack [function] [call site] 00078
5 libconfig_yy_create_buffer [function] [call site] 00079
5 libconfig_yy_load_buffer_state [function] [call site] 00080
5 libconfig_strbuf_append_string [function] [call site] 00081
6 strlen [call site] 00082
6 libconfig_strbuf_ensure_capacity [function] [call site] 00083
7 libconfig_realloc [function] [call site] 00084
6 strcpy [call site] 00085
5 libconfig_strbuf_append_char [function] [call site] 00086
6 libconfig_strbuf_ensure_capacity [function] [call site] 00087
5 libconfig_strbuf_append_char [function] [call site] 00088
5 libconfig_strbuf_append_char [function] [call site] 00089
5 libconfig_strbuf_append_char [function] [call site] 00090
5 libconfig_strbuf_append_char [function] [call site] 00091
5 libconfig_strbuf_append_char [function] [call site] 00092
5 libconfig_strbuf_append_char [function] [call site] 00093
5 libconfig_strbuf_append_char [function] [call site] 00094
5 libconfig_strbuf_append_char [function] [call site] 00095
5 strtol [call site] 00096
5 libconfig_strbuf_append_char [function] [call site] 00097
5 libconfig_strbuf_append_char [function] [call site] 00098
5 libconfig_scanctx_take_string [function] [call site] 00099
6 libconfig_strbuf_release [function] [call site] 00100
6 libconfig_strdup [function] [call site] 00101
5 libconfig_strbuf_append_string [function] [call site] 00102
5 libconfig_strbuf_append_char [function] [call site] 00103
5 libconfig_strbuf_append_char [function] [call site] 00104
5 libconfig_scanctx_take_string [function] [call site] 00105
5 libconfig_scanctx_push_include [function] [call site] 00106
6 libconfig_strvec_delete [function] [call site] 00107
6 libconfig_strvec_delete [function] [call site] 00108
6 libconfig_strvec_append [function] [call site] 00109
6 libconfig_scanctx_next_include_file [function] [call site] 00110
7 fclose [call site] 00111
7 fopen [call site] 00112
6 libconfig_scanctx_pop_include [function] [call site] 00113
7 fclose [call site] 00114
5 libconfig_yy_create_buffer [function] [call site] 00115
5 libconfig_yy_switch_to_buffer [function] [call site] 00116
5 libconfig_scanctx_current_filename [function] [call site] 00117
5 libconfig_yyget_lineno [function] [call site] 00118
5 atof [call site] 00119
5 libconfig_parse_integer [function] [call site] 00120
6 __errno_location [call site] 00121
6 __errno_location [call site] 00122
6 strtoll [call site] 00123
6 __errno_location [call site] 00124
6 __errno_location [call site] 00125
6 __errno_location [call site] 00126
6 __errno_location [call site] 00127
5 libconfig_parse_integer [function] [call site] 00128
5 libconfig_parse_integer [function] [call site] 00129
5 libconfig_parse_integer [function] [call site] 00130
5 libconfig_parse_integer [function] [call site] 00131
5 ferror [call site] 00132
5 libconfig_scanctx_current_filename [function] [call site] 00133
5 libconfig_yyget_lineno [function] [call site] 00134
5 clearerr [call site] 00135
5 libconfig_scanctx_next_include_file [function] [call site] 00136
5 libconfig_yy_delete_buffer [function] [call site] 00137
6 libconfig_yyfree [function] [call site] 00138
6 libconfig_yyfree [function] [call site] 00139
5 libconfig_yy_create_buffer [function] [call site] 00140
5 libconfig_yy_switch_to_buffer [function] [call site] 00141
5 libconfig_scanctx_current_filename [function] [call site] 00142
5 libconfig_yyget_lineno [function] [call site] 00143
5 libconfig_scanctx_pop_include [function] [call site] 00144
5 libconfig_yy_delete_buffer [function] [call site] 00145
5 libconfig_yy_switch_to_buffer [function] [call site] 00146
5 fwrite [call site] 00147
5 yy_get_previous_state [function] [call site] 00148
5 yy_try_NUL_trans [function] [call site] 00149
5 yy_get_next_buffer [function] [call site] 00150
6 yy_fatal_error [function] [call site] 00151
6 libconfig_yyrealloc [function] [call site] 00152
6 yy_fatal_error [function] [call site] 00153
6 libconfig_yyread [function] [call site] 00154
7 __errno_location [call site] 00155
7 fread [call site] 00156
7 ferror [call site] 00157
7 __errno_location [call site] 00158
7 __errno_location [call site] 00159
7 clearerr [call site] 00160
6 libconfig_yyrestart [function] [call site] 00161
6 libconfig_yyrealloc [function] [call site] 00162
6 yy_fatal_error [function] [call site] 00163
5 yy_get_previous_state [function] [call site] 00164
5 yy_get_previous_state [function] [call site] 00165
5 yy_fatal_error [function] [call site] 00166
4 config_setting_add [function] [call site] 00167
5 __config_type_is_scalar [function] [call site] 00168
5 __config_validate_name [function] [call site] 00169
6 __ctype_b_loc [call site] 00170
6 __ctype_b_loc [call site] 00171
6 strchr [call site] 00172
5 config_setting_get_member [function] [call site] 00173
6 strlen [call site] 00174
6 __config_list_search [function] [call site] 00175
7 strlen [call site] 00176
7 strncmp [call site] 00177
5 config_get_option [function] [call site] 00178
5 config_setting_remove [function] [call site] 00179
6 config_setting_lookup [function] [call site] 00180
7 config_setting_lookup_const [function] [call site] 00181
8 strchr [call site] 00182
8 strtol [call site] 00183
8 config_setting_get_elem [function] [call site] 00184
9 config_setting_is_aggregate [function] [call site] 00185
8 strchr [call site] 00186
8 __config_list_search [function] [call site] 00187
6 strchr [call site] 00188
6 strlen [call site] 00189
6 __config_list_search [function] [call site] 00190
6 __config_list_remove [function] [call site] 00191
6 __config_setting_destroy [function] [call site] 00192
5 __config_setting_create [function] [call site] 00193
6 config_setting_is_aggregate [function] [call site] 00194
6 libconfig_calloc [function] [call site] 00195
6 libconfig_strdup [function] [call site] 00196
6 libconfig_calloc [function] [call site] 00197
6 __config_list_add [function] [call site] 00198
7 libconfig_realloc [function] [call site] 00199
4 libconfig_yyerror [function] [call site] 00200
5 libconfig_yyget_lineno [function] [call site] 00201
4 capture_parse_pos [function] [call site] 00202
5 libconfig_yyget_lineno [function] [call site] 00203
5 libconfig_scanctx_current_filename [function] [call site] 00204
4 config_setting_add [function] [call site] 00205
4 capture_parse_pos [function] [call site] 00206
4 config_setting_add [function] [call site] 00207
4 capture_parse_pos [function] [call site] 00208
4 libconfig_strbuf_append_string [function] [call site] 00209
4 libconfig_strbuf_append_string [function] [call site] 00210
4 config_setting_set_bool_elem [function] [call site] 00211
5 __config_list_checktype [function] [call site] 00212
5 __config_setting_create [function] [call site] 00213
5 config_setting_get_elem [function] [call site] 00214
5 config_setting_set_bool [function] [call site] 00215
4 libconfig_yyerror [function] [call site] 00216
4 capture_parse_pos [function] [call site] 00217
4 config_setting_set_bool [function] [call site] 00218
4 config_setting_set_int_elem [function] [call site] 00219
5 __config_list_checktype [function] [call site] 00220
5 __config_setting_create [function] [call site] 00221
5 config_setting_get_elem [function] [call site] 00222
5 config_setting_set_int [function] [call site] 00223
6 config_get_option [function] [call site] 00224
4 libconfig_yyerror [function] [call site] 00225
4 config_setting_set_format [function] [call site] 00226
4 capture_parse_pos [function] [call site] 00227
4 config_setting_set_int [function] [call site] 00228
4 config_setting_set_format [function] [call site] 00229
4 config_setting_set_int64_elem [function] [call site] 00230
5 __config_list_checktype [function] [call site] 00231
5 __config_setting_create [function] [call site] 00232
5 config_setting_get_elem [function] [call site] 00233
5 config_setting_set_int64 [function] [call site] 00234
6 config_get_option [function] [call site] 00235
4 libconfig_yyerror [function] [call site] 00236
4 config_setting_set_format [function] [call site] 00237
4 capture_parse_pos [function] [call site] 00238
4 config_setting_set_int64 [function] [call site] 00239
4 config_setting_set_format [function] [call site] 00240
4 config_setting_set_int_elem [function] [call site] 00241
4 libconfig_yyerror [function] [call site] 00242
4 config_setting_set_format [function] [call site] 00243
4 capture_parse_pos [function] [call site] 00244
4 config_setting_set_int [function] [call site] 00245
4 config_setting_set_format [function] [call site] 00246
4 config_setting_set_int64_elem [function] [call site] 00247
4 libconfig_yyerror [function] [call site] 00248
4 config_setting_set_format [function] [call site] 00249
4 capture_parse_pos [function] [call site] 00250
4 config_setting_set_int64 [function] [call site] 00251
4 config_setting_set_format [function] [call site] 00252
4 config_setting_set_int_elem [function] [call site] 00253
4 libconfig_yyerror [function] [call site] 00254
4 config_setting_set_format [function] [call site] 00255
4 capture_parse_pos [function] [call site] 00256
4 config_setting_set_int [function] [call site] 00257
4 config_setting_set_format [function] [call site] 00258
4 config_setting_set_int64_elem [function] [call site] 00259
4 libconfig_yyerror [function] [call site] 00260
4 config_setting_set_format [function] [call site] 00261
4 capture_parse_pos [function] [call site] 00262
4 config_setting_set_int64 [function] [call site] 00263
4 config_setting_set_format [function] [call site] 00264
4 config_setting_set_int_elem [function] [call site] 00265
4 libconfig_yyerror [function] [call site] 00266
4 config_setting_set_format [function] [call site] 00267
4 capture_parse_pos [function] [call site] 00268
4 config_setting_set_int [function] [call site] 00269
4 config_setting_set_format [function] [call site] 00270
4 config_setting_set_int64_elem [function] [call site] 00271
4 libconfig_yyerror [function] [call site] 00272
4 config_setting_set_format [function] [call site] 00273
4 capture_parse_pos [function] [call site] 00274
4 config_setting_set_int64 [function] [call site] 00275
4 config_setting_set_format [function] [call site] 00276
4 config_setting_set_float_elem [function] [call site] 00277
5 __config_list_checktype [function] [call site] 00278
5 __config_setting_create [function] [call site] 00279
5 config_setting_get_elem [function] [call site] 00280
5 config_setting_set_float [function] [call site] 00281
6 config_get_option [function] [call site] 00282
6 config_get_option [function] [call site] 00283
4 libconfig_yyerror [function] [call site] 00284
4 capture_parse_pos [function] [call site] 00285
4 config_setting_set_float [function] [call site] 00286
4 libconfig_strbuf_release [function] [call site] 00287
4 config_setting_set_string_elem [function] [call site] 00288
5 __config_list_checktype [function] [call site] 00289
5 __config_setting_create [function] [call site] 00290
5 config_setting_get_elem [function] [call site] 00291
5 config_setting_set_string [function] [call site] 00292
6 libconfig_strdup [function] [call site] 00293
4 libconfig_yyerror [function] [call site] 00294
4 capture_parse_pos [function] [call site] 00295
4 libconfig_strbuf_release [function] [call site] 00296
4 config_setting_set_string [function] [call site] 00297
4 config_setting_add [function] [call site] 00298
4 capture_parse_pos [function] [call site] 00299
4 libconfig_yyerror [function] [call site] 00300
4 yydestruct [function] [call site] 00301
4 yydestruct [function] [call site] 00302
4 libconfig_yyerror [function] [call site] 00303
4 yydestruct [function] [call site] 00304
4 yydestruct [function] [call site] 00305
3 libconfig_scanctx_current_filename [function] [call site] 00306
3 libconfig_scanctx_pop_include [function] [call site] 00307
3 libconfig_yy_delete_buffer [function] [call site] 00308
3 libconfig_yylex_destroy [function] [call site] 00309
4 libconfig_yy_delete_buffer [function] [call site] 00310
4 libconfig_yypop_buffer_state [function] [call site] 00311
5 libconfig_yy_delete_buffer [function] [call site] 00312
5 libconfig_yy_load_buffer_state [function] [call site] 00313
4 libconfig_yyfree [function] [call site] 00314
4 libconfig_yyfree [function] [call site] 00315
4 yy_init_globals [function] [call site] 00316
4 libconfig_yyfree [function] [call site] 00317
3 libconfig_scanctx_cleanup [function] [call site] 00318
4 fclose [call site] 00319
4 libconfig_strbuf_release [function] [call site] 00320
4 libconfig_strvec_release [function] [call site] 00321
3 libconfig_strbuf_release [function] [call site] 00322
3 __config_locale_restore [function] [call site] 00323
4 uselocale [call site] 00324
4 freelocale [call site] 00325
1 find_setting_recursive [function] [call site] 00326
2 strlen [call site] 00327
2 strncmp [call site] 00328
2 config_setting_length [function] [call site] 00329
3 config_setting_is_aggregate [function] [call site] 00330
2 config_setting_get_elem [function] [call site] 00331
2 find_setting_recursive [function] [call site] 00332
1 config_setting_length [function] [call site] 00333
1 config_setting_get_elem [function] [call site] 00334
1 config_setting_lookup_float [function] [call site] 00335
2 config_setting_get_member [function] [call site] 00336
2 __config_setting_get_float [function] [call site] 00337
3 config_get_option [function] [call site] 00338
3 config_get_option [function] [call site] 00339
1 config_setting_lookup_bool [function] [call site] 00340
2 config_setting_get_member [function] [call site] 00341
2 config_setting_get_bool [function] [call site] 00342
1 config_setting_lookup_int [function] [call site] 00343
2 config_setting_get_member [function] [call site] 00344
2 __config_setting_get_int [function] [call site] 00345
3 config_get_option [function] [call site] 00346
1 config_setting_lookup_int64 [function] [call site] 00347
2 config_setting_get_member [function] [call site] 00348
2 __config_setting_get_int64 [function] [call site] 00349
3 config_get_option [function] [call site] 00350
1 config_setting_lookup_string [function] [call site] 00351
2 config_setting_get_member [function] [call site] 00352
2 config_setting_get_string [function] [call site] 00353
1 config_setting_lookup_const [function] [call site] 00354
1 config_setting_get_member [function] [call site] 00355
1 config_setting_set_float [function] [call site] 00356
1 config_setting_add [function] [call site] 00357
1 config_setting_set_float [function] [call site] 00358
1 config_write [function] [call site] 00359
2 __config_locale_override [function] [call site] 00360
2 __config_write_setting [function] [call site] 00361
3 config_get_option [function] [call site] 00362
3 config_get_option [function] [call site] 00363
3 __config_indent [function] [call site] 00364
4 fprintf [call site] 00365
4 fputc [call site] 00366
3 fputs [call site] 00367
3 fprintf [call site] 00368
3 config_setting_get_format [function] [call site] 00369
3 __config_write_value [function] [call site] 00370
4 fputs [call site] 00371
4 fprintf [call site] 00372
4 libconfig_format_bin [function] [call site] 00373
4 fprintf [call site] 00374
4 fprintf [call site] 00375
4 fprintf [call site] 00376
4 fprintf [call site] 00377
4 libconfig_format_bin [function] [call site] 00378
4 fprintf [call site] 00379
4 fprintf [call site] 00380
4 fprintf [call site] 00381
4 config_get_option [function] [call site] 00382
4 libconfig_format_double [function] [call site] 00383
5 snprintf [call site] 00384
5 strchr [call site] 00385
5 strchr [call site] 00386
5 strcat [call site] 00387
5 strlen [call site] 00388
4 fputs [call site] 00389
4 fputc [call site] 00390
4 fputc [call site] 00391
4 fputc [call site] 00392
4 fputs [call site] 00393
4 fputs [call site] 00394
4 fputs [call site] 00395
4 fputs [call site] 00396
4 fputc [call site] 00397
4 fprintf [call site] 00398
4 fputc [call site] 00399
4 fputs [call site] 00400
4 config_setting_get_format [function] [call site] 00401
4 __config_write_value [function] [call site] 00402
5 fputc [call site] 00403
5 fputc [call site] 00404
5 fputc [call site] 00405
5 fputs [call site] 00406
5 config_setting_get_format [function] [call site] 00407
5 __config_write_value [function] [call site] 00408
6 fputc [call site] 00409
6 fputc [call site] 00410
6 fputc [call site] 00411
6 config_get_option [function] [call site] 00412
6 fputc [call site] 00413
6 __config_indent [function] [call site] 00414
6 fputs [call site] 00415
6 __config_write_setting [function] [call site] 00416
7 config_get_option [function] [call site] 00417
7 fputc [call site] 00418
7 fputc [call site] 00419
6 __config_indent [function] [call site] 00420
6 fputc [call site] 00421
6 fputs [call site] 00422
2 __config_locale_restore [function] [call site] 00423
1 config_setting_remove [function] [call site] 00424
1 config_destroy [function] [call site] 00425
2 __config_setting_destroy [function] [call site] 00426
2 libconfig_strvec_delete [function] [call site] 00427