Fuzz introspector: parse_packet_fuzzer.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
390 0 EP call site: 00000 parse_packet

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 regional_create [function] [call site] 00001
2 regional_create_custom [function] [call site] 00002
3 regional_create_custom_large_object [function] [call site] 00003
1 sldns_buffer_init_frm_data [function] [call site] 00010
1 parse_packet [function] [call site] 00013
2 sldns_buffer_remaining [function] [call site] 00014
3 sldns_buffer_remaining_at [function] [call site] 00015
4 sldns_buffer_invariant [function] [call site] 00016
2 sldns_buffer_read [function] [call site] 00018
3 sldns_buffer_read_at [function] [call site] 00019
4 sldns_buffer_available_at [function] [call site] 00021
5 sldns_buffer_remaining_at [function] [call site] 00022
2 sldns_buffer_read_u16 [function] [call site] 00024
3 sldns_buffer_read_u16_at [function] [call site] 00025
4 sldns_buffer_available_at [function] [call site] 00027
4 sldns_read_uint16 [function] [call site] 00028
2 sldns_buffer_read_u16 [function] [call site] 00030
2 sldns_buffer_read_u16 [function] [call site] 00031
2 sldns_buffer_read_u16 [function] [call site] 00032
2 sldns_buffer_read_u16 [function] [call site] 00033
2 parse_query_section [function] [call site] 00034
3 log_assert [function] [call site] 00035
3 sldns_buffer_remaining [function] [call site] 00036
3 sldns_buffer_current [function] [call site] 00037
4 sldns_buffer_at [function] [call site] 00038
3 pkt_dname_len [function] [call site] 00040
4 sldns_buffer_remaining [function] [call site] 00041
4 sldns_buffer_read_u8 [function] [call site] 00042
5 sldns_buffer_read_u8_at [function] [call site] 00043
6 sldns_buffer_available_at [function] [call site] 00045
4 LABEL_IS_PTR [function] [call site] 00046
4 sldns_buffer_remaining [function] [call site] 00047
4 PTR_OFFSET [function] [call site] 00048
4 sldns_buffer_read_u8 [function] [call site] 00049
4 sldns_buffer_limit [function] [call site] 00050
4 sldns_buffer_position [function] [call site] 00051
4 sldns_buffer_set_position [function] [call site] 00052
4 sldns_buffer_remaining [function] [call site] 00054
4 sldns_buffer_skip [function] [call site] 00055
4 sldns_buffer_set_position [function] [call site] 00057
3 sldns_buffer_remaining [function] [call site] 00058
3 sldns_buffer_read_u16 [function] [call site] 00059
3 sldns_buffer_read_u16 [function] [call site] 00060
2 parse_section [function] [call site] 00061
3 sldns_buffer_remaining [function] [call site] 00062
3 sldns_buffer_current [function] [call site] 00063
3 pkt_dname_len [function] [call site] 00064
3 sldns_buffer_remaining [function] [call site] 00065
3 sldns_buffer_read_u16 [function] [call site] 00066
3 sldns_buffer_read [function] [call site] 00067
3 pkt_rrsig_covered [function] [call site] 00068
4 sldns_buffer_position [function] [call site] 00069
4 sldns_buffer_set_position [function] [call site] 00070
4 sldns_buffer_begin [function] [call site] 00071
5 sldns_buffer_at [function] [call site] 00072
4 sldns_buffer_remaining [function] [call site] 00073
4 sldns_buffer_skip [function] [call site] 00074
4 sldns_buffer_read_u16 [function] [call site] 00075
4 sldns_buffer_set_position [function] [call site] 00076
4 sldns_buffer_read_u16 [function] [call site] 00077
4 sldns_buffer_set_position [function] [call site] 00078
3 sldns_buffer_current [function] [call site] 00079
3 sldns_rr_descript [function] [call site] 00081
3 sldns_rr_descript [function] [call site] 00082
3 sldns_rr_descript [function] [call site] 00083
3 sldns_rr_descript [function] [call site] 00084
3 sldns_rr_descript [function] [call site] 00086
3 sldns_rr_descript [function] [call site] 00087
3 sldns_lookup_by_id [function] [call site] 00089
3 sldns_lookup_by_id [function] [call site] 00091
3 find_rrset [function] [call site] 00108
4 pkt_hash_rrset_first [function] [call site] 00109
4 smart_compare [function] [call site] 00123
5 LABEL_IS_PTR [function] [call site] 00124
5 PTR_OFFSET [function] [call site] 00125
5 sldns_buffer_limit [function] [call site] 00126
5 sldns_buffer_at [function] [call site] 00127
5 PTR_OFFSET [function] [call site] 00128
5 LABEL_IS_PTR [function] [call site] 00129
5 dname_pkt_compare [function] [call site] 00130
6 log_assert [function] [call site] 00131
6 LABEL_IS_PTR [function] [call site] 00132
6 PTR_OFFSET [function] [call site] 00133
6 sldns_buffer_limit [function] [call site] 00134
6 sldns_buffer_at [function] [call site] 00135
6 PTR_OFFSET [function] [call site] 00136
6 LABEL_IS_PTR [function] [call site] 00137
6 PTR_OFFSET [function] [call site] 00138
6 sldns_buffer_limit [function] [call site] 00139
6 sldns_buffer_at [function] [call site] 00140
6 PTR_OFFSET [function] [call site] 00141
6 log_assert [function] [call site] 00142
6 log_assert [function] [call site] 00143
6 log_assert [function] [call site] 00144
4 pkt_rrsig_covered_equals [function] [call site] 00149
5 pkt_rrsig_covered [function] [call site] 00150
4 sldns_buffer_current [function] [call site] 00151
4 smart_compare [function] [call site] 00152
4 pkt_rrset_flags [function] [call site] 00153
5 nsec_at_apex [function] [call site] 00154
6 sldns_buffer_position [function] [call site] 00155
6 sldns_buffer_remaining [function] [call site] 00156
6 sldns_buffer_skip [function] [call site] 00157
6 sldns_buffer_read_u16 [function] [call site] 00158
6 sldns_buffer_remaining [function] [call site] 00159
6 sldns_buffer_set_position [function] [call site] 00160
6 pkt_dname_len [function] [call site] 00161
6 sldns_buffer_set_position [function] [call site] 00162
6 sldns_buffer_position [function] [call site] 00163
6 sldns_buffer_position [function] [call site] 00164
6 sldns_buffer_set_position [function] [call site] 00165
6 sldns_buffer_read_u8 [function] [call site] 00166
6 sldns_buffer_read_u8 [function] [call site] 00167
6 sldns_buffer_read_u8 [function] [call site] 00168
6 sldns_buffer_set_position [function] [call site] 00169
6 sldns_buffer_set_position [function] [call site] 00170
4 pkt_rrsig_covered [function] [call site] 00171
4 sldns_buffer_current [function] [call site] 00172
4 pkt_hash_rrset_rest [function] [call site] 00173
5 hashlittle [function] [call site] 00174
5 hashlittle [function] [call site] 00175
5 hashlittle [function] [call site] 00176
4 msgparse_hashtable_lookup [function] [call site] 00177
5 rrset_parse_equals [function] [call site] 00178
6 dname_pkt_compare [function] [call site] 00179
4 pkt_hash_rrset_rest [function] [call site] 00180
4 msgparse_hashtable_lookup [function] [call site] 00181
4 pkt_hash_rrset_rest [function] [call site] 00182
4 msgparse_hashtable_lookup [function] [call site] 00183
4 pkt_hash_rrset_rest [function] [call site] 00184
4 msgparse_hashtable_lookup [function] [call site] 00185
4 rrset_has_sigover [function] [call site] 00186
5 log_assert [function] [call site] 00187
5 pkt_rrsig_covered_equals [function] [call site] 00188
4 change_rrsig_rrset [function] [call site] 00189
5 pkt_hash_rrset [function] [call site] 00190
6 dname_pkt_hash [function] [call site] 00191
6 hashlittle [function] [call site] 00192
6 hashlittle [function] [call site] 00193
6 hashlittle [function] [call site] 00194
5 log_assert [function] [call site] 00195
5 log_assert [function] [call site] 00196
5 new_rrset [function] [call site] 00197
6 regional_alloc_zero [function] [call site] 00198
7 regional_alloc [function] [call site] 00199
6 log_err [function] [call site] 00201
7 log_vmsg [function] [call site] 00203
8 log_thread_get [function] [call site] 00204
9 ub_thread_key_get [function] [call site] 00205
8 vsnprintf [function] [call site] 00206
9 print_num_d [function] [call site] 00209
10 print_dec [function] [call site] 00210
10 print_num [function] [call site] 00211
11 get_negsign [function] [call site] 00212
11 print_pad [function] [call site] 00213
11 print_pad [function] [call site] 00214
11 spool_str_rev [function] [call site] 00215
11 print_pad [function] [call site] 00216
11 print_pad [function] [call site] 00217
11 print_pad [function] [call site] 00218
11 print_pad [function] [call site] 00219
11 spool_str_rev [function] [call site] 00220
9 print_num_ld [function] [call site] 00222
10 print_dec_l [function] [call site] 00223
10 print_num [function] [call site] 00224
9 print_num_lld [function] [call site] 00226
10 print_dec_ll [function] [call site] 00227
10 print_num [function] [call site] 00228
9 print_num_u [function] [call site] 00230
10 print_dec [function] [call site] 00231
10 print_num [function] [call site] 00232
9 print_num_lu [function] [call site] 00234
10 print_dec_l [function] [call site] 00235
10 print_num [function] [call site] 00236
9 print_num_llu [function] [call site] 00238
10 print_dec_ll [function] [call site] 00239
10 print_num [function] [call site] 00240
9 print_num_x [function] [call site] 00242
10 print_hex [function] [call site] 00243
10 print_num [function] [call site] 00244
9 print_num_lx [function] [call site] 00246
10 print_hex_l [function] [call site] 00247
10 print_num [function] [call site] 00248
9 print_num_llx [function] [call site] 00250
10 print_hex_ll [function] [call site] 00251
10 print_num [function] [call site] 00252
9 print_str [function] [call site] 00254
10 my_strnlen [function] [call site] 00255
10 print_pad [function] [call site] 00257
10 spool_str [function] [call site] 00258
10 print_pad [function] [call site] 00259
9 print_char [function] [call site] 00261
10 print_pad [function] [call site] 00262
10 print_pad [function] [call site] 00263
10 print_pad [function] [call site] 00264
9 print_str [function] [call site] 00266
9 print_num_llp [function] [call site] 00268
10 print_hex_ll [function] [call site] 00269
10 print_num [function] [call site] 00270
9 print_pad [function] [call site] 00272
9 print_num_f [function] [call site] 00273
10 print_float [function] [call site] 00274
11 print_remainder [function] [call site] 00275
12 print_dec_ll [function] [call site] 00276
11 print_dec_ll [function] [call site] 00277
10 print_num [function] [call site] 00278
9 print_num_g [function] [call site] 00280
10 print_float_g [function] [call site] 00281
11 print_remainder [function] [call site] 00282
11 print_dec_ll [function] [call site] 00285
10 print_num [function] [call site] 00286
8 RegisterEventSource [function] [call site] 00298
8 ReportEvent [function] [call site] 00299
8 DeregisterEventSource [function] [call site] 00300
8 lock_basic_lock [function] [call site] 00301
8 lock_basic_unlock [function] [call site] 00302
8 gettimeofday [function] [call site] 00303
8 localtime_r [function] [call site] 00305
8 lock_basic_unlock [function] [call site] 00311
8 localtime_r [function] [call site] 00314
8 GetTimeFormat [function] [call site] 00317
8 GetDateFormat [function] [call site] 00318
8 lock_basic_unlock [function] [call site] 00324
6 regional_alloc_zero [function] [call site] 00326
6 regional_alloc_zero [function] [call site] 00328
5 log_assert [function] [call site] 00332
5 moveover_rrsigs [function] [call site] 00333
6 pkt_rrsig_covered_equals [function] [call site] 00334
6 regional_alloc [function] [call site] 00335
5 msgparse_bucket_remove [function] [call site] 00336
5 change_section [function] [call site] 00337
6 log_assert [function] [call site] 00338
6 log_assert [function] [call site] 00339
4 pkt_hash_rrset_rest [function] [call site] 00340
4 msgparse_hashtable_lookup [function] [call site] 00341
3 new_rrset [function] [call site] 00342
3 dname_print [function] [call site] 00344
3 sldns_rr_descript [function] [call site] 00346
3 sldns_rr_descript [function] [call site] 00347
3 add_rr_to_rrset [function] [call site] 00348
4 skip_ttl_rdata [function] [call site] 00349
5 sldns_buffer_remaining [function] [call site] 00350
5 sldns_buffer_skip [function] [call site] 00351
5 sldns_buffer_read_u16 [function] [call site] 00352
5 sldns_buffer_remaining [function] [call site] 00353
5 sldns_buffer_skip [function] [call site] 00354
4 sig_is_double [function] [call site] 00355
5 sldns_buffer_position [function] [call site] 00356
5 sldns_buffer_remaining [function] [call site] 00357
5 sldns_buffer_skip [function] [call site] 00358
5 sldns_buffer_read_u16 [function] [call site] 00359
5 sldns_buffer_remaining [function] [call site] 00360
5 sldns_buffer_set_position [function] [call site] 00361
5 sldns_buffer_set_position [function] [call site] 00362
4 sldns_buffer_current [function] [call site] 00366
4 skip_ttl_rdata [function] [call site] 00367
4 regional_alloc [function] [call site] 00368
4 sldns_buffer_current [function] [call site] 00369
4 calc_size [function] [call site] 00370
5 sldns_buffer_skip [function] [call site] 00371
5 sldns_buffer_read_u16 [function] [call site] 00372
5 sldns_buffer_remaining [function] [call site] 00373
5 sldns_rr_descript [function] [call site] 00374
5 sldns_buffer_position [function] [call site] 00375
5 pkt_dname_len [function] [call site] 00376
5 sldns_buffer_position [function] [call site] 00377
5 sldns_buffer_position [function] [call site] 00378
5 sldns_buffer_current [function] [call site] 00379
5 get_rdf_size [function] [call site] 00380
6 log_assert [function] [call site] 00381
5 sldns_buffer_skip [function] [call site] 00382
5 sldns_buffer_skip [function] [call site] 00383
2 parse_section [function] [call site] 00384
2 sldns_buffer_remaining [function] [call site] 00385
2 parse_section [function] [call site] 00386
1 regional_free_all [function] [call site] 00387