Fuzz introspector: fuzz/dns_master_load.c
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
147 92 isc_time_formatISO8601TZms call site: 00092 isc_log_open
24 241 isc_stdio_open call site: 00241 isc_log_write
10 38 isc_log_doit call site: 00038 isc_time_now
7 373 call_updatenotify call site: 00373 dns_db_detach
3 316 dns_name_fromregion call site: 00316 isc_buffer_add
3 361 dns_master_loadbuffer call site: 00361 dns_db_endload
2 0 EP call site: 00000 isc_buffer_add
2 12 dns_rdatacallbacks_initcommon call site: 00012 dns_db_create
2 23 dns_db_create call site: 00023 isc_log_write
1 5 isc_buffer_add call site: 00005 isc_buffer_setactive
1 9 isc_buffer_setactive call site: 00009 dns_rdatacallbacks_init
1 36 isc_log_wouldlog call site: 00036 atomic_load_acquire

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 isc_buffer_constinit [function] [call site] 00001
1 isc_buffer_add [function] [call site] 00002
2 REQUIRE [function] [call site] 00003
2 ISC_BUFFER_VALID [function] [call site] 00004
2 REQUIRE [function] [call site] 00005
1 isc_buffer_setactive [function] [call site] 00006
2 REQUIRE [function] [call site] 00007
2 ISC_BUFFER_VALID [function] [call site] 00008
2 REQUIRE [function] [call site] 00009
1 dns_rdatacallbacks_init [function] [call site] 00010
2 dns_rdatacallbacks_initcommon [function] [call site] 00011
3 REQUIRE [function] [call site] 00012
1 isc_mem_create [function] [call site] 00013
1 dns_db_create [function] [call site] 00014
2 REQUIRE [function] [call site] 00015
2 REQUIRE [function] [call site] 00016
2 dns_name_isabsolute [function] [call site] 00017
3 REQUIRE [function] [call site] 00018
3 DNS_NAME_VALID [function] [call site] 00019
2 RWLOCK [function] [call site] 00020
2 impfind [function] [call site] 00021
3 strcasecmp [function] [call site] 00022
2 RWUNLOCK [function] [call site] 00023
2 fprintf [function] [call site] 00024
2 isc_log_write [function] [call site] 00025
3 va_start [function] [call site] 00026
3 isc_log_doit [function] [call site] 00027
4 REQUIRE [function] [call site] 00028
4 VALID_CONTEXT [function] [call site] 00029
4 REQUIRE [function] [call site] 00030
4 REQUIRE [function] [call site] 00031
4 REQUIRE [function] [call site] 00032
4 REQUIRE [function] [call site] 00033
4 isc_log_wouldlog [function] [call site] 00034
5 atomic_load_acquire [function] [call site] 00035
5 atomic_load_acquire [function] [call site] 00036
5 atomic_load_acquire [function] [call site] 00037
4 rcu_read_lock [function] [call site] 00038
4 LOCK [function] [call site] 00039
4 rcu_dereference [function] [call site] 00040
4 ISC_LIST_HEAD [function] [call site] 00041
4 ISC_LIST_HEAD [function] [call site] 00042
4 ISC_LIST_HEAD [function] [call site] 00043
4 ISC_LIST_NEXT [function] [call site] 00044
4 ISC_LIST_NEXT [function] [call site] 00045
4 atomic_load_acquire [function] [call site] 00046
4 isc_time_now [function] [call site] 00047
5 time_now [function] [call site] 00048
6 RUNTIME_CHECK [function] [call site] 00049
6 clock_gettime [function] [call site] 00050
6 INSIST [function] [call site] 00051
6 INSIST [function] [call site] 00052
4 isc_time_formattimestamp [function] [call site] 00053
5 REQUIRE [function] [call site] 00054
5 ISC_VALID_TIME [function] [call site] 00055
5 REQUIRE [function] [call site] 00056
5 REQUIRE [function] [call site] 00057
5 strftime [function] [call site] 00058
5 localtime_r [function] [call site] 00059
5 strlcpy [function] [call site] 00060
5 snprintf [function] [call site] 00061
4 isc_time_formatISO8601ms [function] [call site] 00062
5 REQUIRE [function] [call site] 00063
5 ISC_VALID_TIME [function] [call site] 00064
5 REQUIRE [function] [call site] 00065
5 REQUIRE [function] [call site] 00066
5 strftime [function] [call site] 00067
5 gmtime_r [function] [call site] 00068
5 strlcpy [function] [call site] 00069
5 snprintf [function] [call site] 00070
4 isc_time_formatISO8601Lms [function] [call site] 00071
5 REQUIRE [function] [call site] 00072
5 ISC_VALID_TIME [function] [call site] 00073
5 REQUIRE [function] [call site] 00074
5 REQUIRE [function] [call site] 00075
5 strftime [function] [call site] 00076
5 localtime_r [function] [call site] 00077
5 strlcpy [function] [call site] 00078
5 snprintf [function] [call site] 00079
4 isc_time_formatISO8601TZms [function] [call site] 00080
5 REQUIRE [function] [call site] 00081
5 ISC_VALID_TIME [function] [call site] 00082
5 REQUIRE [function] [call site] 00083
5 REQUIRE [function] [call site] 00084
5 strftime [function] [call site] 00085
5 localtime_r [function] [call site] 00086
5 snprintf [function] [call site] 00087
5 INSIST [function] [call site] 00088
5 memmove [function] [call site] 00089
5 memmove [function] [call site] 00090
5 memmove [function] [call site] 00091
5 memmove [function] [call site] 00092
4 snprintf [function] [call site] 00093
4 snprintf [function] [call site] 00094
4 snprintf [function] [call site] 00095
4 vsnprintf [function] [call site] 00096
4 FILE_MAXREACHED [function] [call site] 00097
4 FILE_VERSIONS [function] [call site] 00098
4 stat [function] [call site] 00099
4 FILE_NAME [function] [call site] 00100
4 FILE_MAXSIZE [function] [call site] 00101
4 FILE_STREAM [function] [call site] 00102
4 fclose [function] [call site] 00103
4 FILE_STREAM [function] [call site] 00104
4 FILE_STREAM [function] [call site] 00105
4 FILE_MAXREACHED [function] [call site] 00106
4 FILE_STREAM [function] [call site] 00107
4 isc_log_open [function] [call site] 00108
5 REQUIRE [function] [call site] 00109
5 REQUIRE [function] [call site] 00110
5 FILE_STREAM [function] [call site] 00111
5 FILE_NAME [function] [call site] 00112
5 REQUIRE [function] [call site] 00113
5 stat [function] [call site] 00114
5 S_ISREG [function] [call site] 00115
5 FILE_MAXSIZE [function] [call site] 00116
5 FILE_VERSIONS [function] [call site] 00117
5 FILE_MAXSIZE [function] [call site] 00118
5 FILE_MAXSIZE [function] [call site] 00119
5 POST [function] [call site] 00120
5 FILE_VERSIONS [function] [call site] 00121
5 isc_logfile_roll [function] [call site] 00122
6 REQUIRE [function] [call site] 00123
6 isc_file_remove [function] [call site] 00124
7 REQUIRE [function] [call site] 00125
7 unlink [function] [call site] 00126
7 isc__errno2result [function] [call site] 00127
6 syslog [function] [call site] 00128
6 isc_result_totext [function] [call site] 00129
6 roll_increment [function] [call site] 00130
7 REQUIRE [function] [call site] 00131
7 REQUIRE [function] [call site] 00132
7 snprintf [function] [call site] 00133
7 isc_file_exists [function] [call site] 00134
8 UNUSED [function] [call site] 00135
8 mock [function] [call site] 00136
7 RETERR [function] [call site] 00137
7 greatest_version [function] [call site] 00138
8 strrchr [function] [call site] 00139
8 strlcpy [function] [call site] 00140
8 syslog [function] [call site] 00141
8 isc_result_totext [function] [call site] 00142
8 strlen [function] [call site] 00143
8 isc_dir_init [function] [call site] 00144
9 REQUIRE [function] [call site] 00145
8 RETERR [function] [call site] 00146
8 isc_dir_open [function] [call site] 00147
9 REQUIRE [function] [call site] 00148
9 VALID_DIR [function] [call site] 00149
9 REQUIRE [function] [call site] 00150
9 strlen [function] [call site] 00151
9 strlcpy [function] [call site] 00152
9 strlen [function] [call site] 00153
9 opendir [function] [call site] 00154
9 isc__errno2result [function] [call site] 00155
8 isc_dir_read [function] [call site] 00156
9 REQUIRE [function] [call site] 00157
9 VALID_DIR [function] [call site] 00158
9 readdir [function] [call site] 00159
9 strlen [function] [call site] 00160
9 strlcpy [function] [call site] 00161
9 strlen [function] [call site] 00162
8 strncmp [function] [call site] 00163
8 strtol [function] [call site] 00164
8 dirfd [function] [call site] 00165
8 unlinkat [function] [call site] 00166
8 isc_errno_toresult [function] [call site] 00167
9 isc___errno2result [function] [call site] 00168
10 strerror_r [function] [call site] 00169
10 UNEXPECTED_ERROR [function] [call site] 00170
8 syslog [function] [call site] 00171
8 isc_result_totext [function] [call site] 00172
8 isc_dir_close [function] [call site] 00173
9 REQUIRE [function] [call site] 00174
9 VALID_DIR [function] [call site] 00175
9 closedir [function] [call site] 00176
7 snprintf [function] [call site] 00177
7 snprintf [function] [call site] 00178
7 isc_file_rename [function] [call site] 00179
8 REQUIRE [function] [call site] 00180
8 REQUIRE [function] [call site] 00181
8 rename [function] [call site] 00182
8 isc__errno2result [function] [call site] 00183
7 syslog [function] [call site] 00184
7 isc_result_totext [function] [call site] 00185
7 snprintf [function] [call site] 00186
7 isc_file_rename [function] [call site] 00187
7 syslog [function] [call site] 00188
7 isc_result_totext [function] [call site] 00189
6 roll_timestamp [function] [call site] 00190
7 REQUIRE [function] [call site] 00191
7 REQUIRE [function] [call site] 00192
7 remove_old_tsversions [function] [call site] 00193
8 strrchr [function] [call site] 00194
8 strlcpy [function] [call site] 00195
8 syslog [function] [call site] 00196
8 isc_result_totext [function] [call site] 00197
8 strlen [function] [call site] 00198
8 isc_dir_init [function] [call site] 00199
8 RETERR [function] [call site] 00200
8 isc_dir_open [function] [call site] 00201
8 last_to_keep [function] [call site] 00202
9 memset [function] [call site] 00203
9 isc_dir_read [function] [call site] 00204
9 strncmp [function] [call site] 00205
9 strtoull [function] [call site] 00206
9 insert_sort [function] [call site] 00207
10 memmove [function] [call site] 00208
9 isc_dir_reset [function] [call site] 00209
10 REQUIRE [function] [call site] 00210
10 VALID_DIR [function] [call site] 00211
10 rewinddir [function] [call site] 00212
8 isc_dir_read [function] [call site] 00213
8 strncmp [function] [call site] 00214
8 strtoull [function] [call site] 00215
8 dirfd [function] [call site] 00216
8 unlinkat [function] [call site] 00217
8 isc_errno_toresult [function] [call site] 00218
8 syslog [function] [call site] 00219
8 isc_result_totext [function] [call site] 00220
8 isc_dir_close [function] [call site] 00221
7 isc_time_now [function] [call site] 00222
7 isc_time_formatshorttimestamp [function] [call site] 00223
8 REQUIRE [function] [call site] 00224
8 ISC_VALID_TIME [function] [call site] 00225
8 REQUIRE [function] [call site] 00226
8 REQUIRE [function] [call site] 00227
8 strftime [function] [call site] 00228
8 gmtime_r [function] [call site] 00229
8 strlcpy [function] [call site] 00230
8 snprintf [function] [call site] 00231
7 snprintf [function] [call site] 00232
7 isc_file_rename [function] [call site] 00233
7 syslog [function] [call site] 00234
7 isc_result_totext [function] [call site] 00235
5 syslog [function] [call site] 00236
5 FILE_NAME [function] [call site] 00237
5 isc_result_totext [function] [call site] 00238
5 isc_stdio_open [function] [call site] 00239
6 fopen [function] [call site] 00240
6 isc__errno2result [function] [call site] 00241
5 FILE_STREAM [function] [call site] 00242
4 syslog [function] [call site] 00243
4 FILE_NAME [function] [call site] 00244
4 isc_result_totext [function] [call site] 00245
4 fprintf [function] [call site] 00246
4 FILE_STREAM [function] [call site] 00247
4 fflush [function] [call site] 00248
4 FILE_STREAM [function] [call site] 00249
4 FILE_MAXSIZE [function] [call site] 00250
4 INSIST [function] [call site] 00251
4 fstat [function] [call site] 00252
4 fileno [function] [call site] 00253
4 FILE_STREAM [function] [call site] 00254
4 FILE_MAXSIZE [function] [call site] 00255
4 FILE_MAXREACHED [function] [call site] 00256
4 syslog [function] [call site] 00257
4 FACILITY [function] [call site] 00258
4 UNLOCK [function] [call site] 00259
4 rcu_read_unlock [function] [call site] 00260
3 va_end [function] [call site] 00261
2 dns_db_detach [function] [call site] 00262
2 RWUNLOCK [function] [call site] 00263
2 isc_log_write [function] [call site] 00264
1 dns_db_beginload [function] [call site] 00265
2 REQUIRE [function] [call site] 00266
2 DNS_DB_VALID [function] [call site] 00267
2 REQUIRE [function] [call site] 00268
2 DNS_CALLBACK_VALID [function] [call site] 00269
1 dns_master_loadbuffer [function] [call site] 00270
2 REQUIRE [function] [call site] 00271
2 loadctx_create [function] [call site] 00272
3 REQUIRE [function] [call site] 00273
3 REQUIRE [function] [call site] 00274
3 REQUIRE [function] [call site] 00275
3 REQUIRE [function] [call site] 00276
3 REQUIRE [function] [call site] 00277
3 REQUIRE [function] [call site] 00278
3 REQUIRE [function] [call site] 00279
3 dns_name_isabsolute [function] [call site] 00280
3 REQUIRE [function] [call site] 00281
3 dns_name_isabsolute [function] [call site] 00282
3 isc_mem_get [function] [call site] 00283
3 incctx_create [function] [call site] 00284
4 isc_mem_get [function] [call site] 00285
4 dns_fixedname_init [function] [call site] 00286
5 dns_name_init [function] [call site] 00287
5 isc_buffer_init [function] [call site] 00288
6 REQUIRE [function] [call site] 00289
5 dns_name_setbuffer [function] [call site] 00290
6 REQUIRE [function] [call site] 00291
6 DNS_NAME_VALID [function] [call site] 00292
6 REQUIRE [function] [call site] 00293
4 dns_fixedname_name [function] [call site] 00294
4 dns_name_toregion [function] [call site] 00295
5 REQUIRE [function] [call site] 00296
5 DNS_NAME_VALID [function] [call site] 00297
5 REQUIRE [function] [call site] 00298
4 dns_name_fromregion [function] [call site] 00299
5 REQUIRE [function] [call site] 00300
5 DNS_NAME_VALID [function] [call site] 00301
5 REQUIRE [function] [call site] 00302
5 REQUIRE [function] [call site] 00303
5 DNS_NAME_BINDABLE [function] [call site] 00304
5 isc_buffer_clear [function] [call site] 00305
6 REQUIRE [function] [call site] 00306
6 ISC_BUFFER_VALID [function] [call site] 00307
5 isc_buffer_availableregion [function] [call site] 00308
6 REQUIRE [function] [call site] 00309
6 ISC_BUFFER_VALID [function] [call site] 00310
6 REQUIRE [function] [call site] 00311
6 isc_buffer_used [function] [call site] 00312
6 isc_buffer_availablelength [function] [call site] 00313
5 INSIST [function] [call site] 00314
5 INSIST [function] [call site] 00315
5 INSIST [function] [call site] 00316
5 memmove [function] [call site] 00317
5 isc_buffer_add [function] [call site] 00318
3 UNREACHABLE [function] [call site] 00319
3 isc_lex_create [function] [call site] 00320
4 REQUIRE [function] [call site] 00321
4 isc_mem_get [function] [call site] 00322
4 isc_mem_get [function] [call site] 00323
4 memset [function] [call site] 00324
4 ISC_LIST_INIT [function] [call site] 00325
3 memset [function] [call site] 00326
3 isc_lex_setspecials [function] [call site] 00327
4 REQUIRE [function] [call site] 00328
4 VALID_LEX [function] [call site] 00329
4 memmove [function] [call site] 00330
3 isc_lex_setcomments [function] [call site] 00331
4 REQUIRE [function] [call site] 00332
4 VALID_LEX [function] [call site] 00333
3 isc_stdtime_now [function] [call site] 00334
3 dns_fixedname_initname [function] [call site] 00335
4 dns_fixedname_init [function] [call site] 00336
4 dns_fixedname_name [function] [call site] 00337
3 dns_name_toregion [function] [call site] 00338
3 dns_name_fromregion [function] [call site] 00339
3 dns_master_initrawheader [function] [call site] 00340
4 memset [function] [call site] 00341
3 isc_refcount_init [function] [call site] 00342
3 isc_mem_attach [function] [call site] 00343
2 CHECK [function] [call site] 00344
2 isc_lex_openbuffer [function] [call site] 00345
3 REQUIRE [function] [call site] 00346
3 VALID_LEX [function] [call site] 00347
3 snprintf [function] [call site] 00348
3 new_source [function] [call site] 00349
4 isc_mem_get [function] [call site] 00350
4 isc_mem_strdup [function] [call site] 00351
4 isc_buffer_allocate [function] [call site] 00352
5 REQUIRE [function] [call site] 00353
5 isc_mem_get [function] [call site] 00354
5 isc_buffer_init [function] [call site] 00355
5 isc_buffer_setmctx [function] [call site] 00356
6 REQUIRE [function] [call site] 00357
6 ISC_BUFFER_VALID [function] [call site] 00358
4 ISC_LIST_PREPEND [function] [call site] 00359
2 INSIST [function] [call site] 00360
2 dns_loadctx_detach [function] [call site] 00361
1 fprintf [function] [call site] 00362
1 isc_result_totext [function] [call site] 00363
1 dns_db_endload [function] [call site] 00364
2 REQUIRE [function] [call site] 00365
2 DNS_DB_VALID [function] [call site] 00366
2 REQUIRE [function] [call site] 00367
2 DNS_CALLBACK_VALID [function] [call site] 00368
2 REQUIRE [function] [call site] 00369
2 call_updatenotify [function] [call site] 00370
3 rcu_read_lock [function] [call site] 00371
3 rcu_dereference [function] [call site] 00372
3 cds_lfht_for_each_entry [function] [call site] 00373
3 cds_lfht_is_node_deleted [function] [call site] 00374
3 dns_dbonupdatelistener_t*::onupdate [function] [call site] 00375
3 rcu_read_unlock [function] [call site] 00376
1 fprintf [function] [call site] 00377
1 isc_result_totext [function] [call site] 00378
1 dns_db_detach [function] [call site] 00379
1 isc_mem_detach [function] [call site] 00380