Fuzz introspector: pdu_parse_ws_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
13 416 coap_pdu_encode_header call site: 00416 coap_log_impl
8 251 coap_show_pdu call site: 00251 coap_log_impl
7 194 coap_dtls_is_supported call site: 00194 coap_log_impl
7 367 coap_show_pdu call site: 00367 coap_log_impl
5 407 LLVMFuzzerTestOneInput call site: 00407 coap_log_impl
4 53 coap_pdu_parse2 call site: 00053 coap_log_impl
4 103 coap_pdu_parse_opt call site: 00103 coap_log_impl
4 108 coap_pdu_parse_opt call site: 00108 coap_log_impl
4 206 coap_tls_is_supported call site: 00206 coap_log_impl
4 216 coap_wss_is_supported call site: 00216 coap_log_impl
3 31 coap_pdu_parse2 call site: 00031 coap_log_impl
3 175 coap_get_uri_path call site: 00175 coap_new_string

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 coap_startup [function] [call site] 00001
2 coap_clock_init [function] [call site] 00002
3 clock_gettime [call site] 00003
2 coap_ticks [function] [call site] 00004
3 clock_gettime [call site] 00005
2 coap_ticks_to_rt_us [function] [call site] 00006
2 coap_prng_init_lkd [function] [call site] 00007
2 coap_memory_init [function] [call site] 00008
2 coap_dtls_startup [function] [call site] 00009
3 OPENSSL_init_ssl [call site] 00010
3 OPENSSL_init_ssl [call site] 00011
3 OPENSSL_init_crypto [call site] 00012
2 coap_prng_lkd [function] [call site] 00013
1 coap_pdu_init [function] [call site] 00014
2 __assert_fail [call site] 00015
2 __assert_fail [call site] 00016
2 __assert_fail [call site] 00017
2 coap_malloc_type [function] [call site] 00018
2 coap_free_type [function] [call site] 00019
2 coap_malloc_type [function] [call site] 00020
2 coap_free_type [function] [call site] 00021
2 coap_pdu_clear [function] [call site] 00022
3 __assert_fail [call site] 00023
3 __assert_fail [call site] 00024
3 __assert_fail [call site] 00025
1 coap_set_log_level [function] [call site] 00026
1 coap_pdu_parse [function] [call site] 00027
2 coap_pdu_parse2 [function] [call site] 00028
3 coap_pdu_parse_header_size [function] [call site] 00029
4 __assert_fail [call site] 00030
3 coap_pdu_resize [function] [call site] 00031
4 coap_get_log_level [function] [call site] 00032
4 coap_log_impl [function] [call site] 00033
5 vsnprintf [call site] 00034
5 coap_ticks [function] [call site] 00035
5 print_timestamp [function] [call site] 00036
6 coap_ticks_to_rt [function] [call site] 00037
6 localtime [call site] 00038
6 strftime [call site] 00039
6 coap_ticks_to_rt_us [function] [call site] 00040
6 snprintf [call site] 00041
5 fprintf [call site] 00042
5 coap_log_level_desc [function] [call site] 00043
6 snprintf [call site] 00044
5 fprintf [call site] 00045
5 vfprintf [call site] 00046
5 fflush [call site] 00047
4 __assert_fail [call site] 00048
4 coap_realloc_type [function] [call site] 00049
5 realloc [call site] 00050
4 coap_get_log_level [function] [call site] 00051
4 coap_log_impl [function] [call site] 00052
3 coap_pdu_parse_header [function] [call site] 00053
4 __assert_fail [call site] 00054
4 coap_get_log_level [function] [call site] 00055
4 coap_log_impl [function] [call site] 00056
4 __assert_fail [call site] 00057
4 __assert_fail [call site] 00058
4 coap_get_log_level [function] [call site] 00059
4 coap_log_impl [function] [call site] 00060
4 coap_get_log_level [function] [call site] 00061
4 coap_log_impl [function] [call site] 00062
3 coap_pdu_parse_opt [function] [call site] 00063
4 coap_option_filter_clear [function] [call site] 00064
4 coap_get_log_level [function] [call site] 00065
4 coap_log_impl [function] [call site] 00066
4 coap_get_log_level [function] [call site] 00067
4 coap_log_impl [function] [call site] 00068
4 next_option_safe [function] [call site] 00069
5 __assert_fail [call site] 00070
5 __assert_fail [call site] 00071
5 __assert_fail [call site] 00072
5 coap_opt_parse [function] [call site] 00073
6 __assert_fail [call site] 00074
6 __assert_fail [call site] 00075
6 coap_get_log_level [function] [call site] 00076
6 coap_log_impl [function] [call site] 00077
6 coap_get_log_level [function] [call site] 00078
6 coap_log_impl [function] [call site] 00079
6 coap_get_log_level [function] [call site] 00080
6 coap_log_impl [function] [call site] 00081
6 coap_get_log_level [function] [call site] 00082
6 coap_log_impl [function] [call site] 00083
6 coap_get_log_level [function] [call site] 00084
6 coap_log_impl [function] [call site] 00085
6 coap_get_log_level [function] [call site] 00086
6 coap_log_impl [function] [call site] 00087
6 coap_get_log_level [function] [call site] 00088
6 coap_log_impl [function] [call site] 00089
6 coap_get_log_level [function] [call site] 00090
6 coap_log_impl [function] [call site] 00091
6 coap_get_log_level [function] [call site] 00092
6 coap_log_impl [function] [call site] 00093
5 __assert_fail [call site] 00094
4 coap_get_log_level [function] [call site] 00095
4 coap_log_impl [function] [call site] 00096
4 coap_option_filter_set [function] [call site] 00097
5 coap_option_filter_op [function] [call site] 00098
6 is_long_option [function] [call site] 00099
6 coap_fls [function] [call site] 00100
7 coap_flsll [function] [call site] 00101
6 is_long_option [function] [call site] 00102
4 coap_opt_length [function] [call site] 00103
5 coap_get_log_level [function] [call site] 00104
5 coap_log_impl [function] [call site] 00105
5 coap_get_log_level [function] [call site] 00106
5 coap_log_impl [function] [call site] 00107
4 coap_opt_value [function] [call site] 00108
5 coap_get_log_level [function] [call site] 00109
5 coap_log_impl [function] [call site] 00110
5 coap_get_log_level [function] [call site] 00111
5 coap_log_impl [function] [call site] 00112
4 coap_pdu_parse_opt_csm [function] [call site] 00113
4 coap_pdu_parse_opt_base [function] [call site] 00114
5 coap_check_dots [function] [call site] 00115
6 __assert_fail [call site] 00116
4 coap_get_log_level [function] [call site] 00117
4 coap_log_impl [function] [call site] 00118
4 coap_option_filter_set [function] [call site] 00119
4 write_prefix [function] [call site] 00120
4 next_option_safe [function] [call site] 00121
4 coap_opt_length [function] [call site] 00122
4 coap_opt_value [function] [call site] 00123
4 coap_pdu_parse_opt_csm [function] [call site] 00124
4 coap_pdu_parse_opt_base [function] [call site] 00125
4 write_prefix [function] [call site] 00126
4 write_prefix [function] [call site] 00127
4 write_char [function] [call site] 00128
5 __ctype_b_loc [call site] 00129
4 write_char [function] [call site] 00130
4 coap_get_log_level [function] [call site] 00131
4 coap_log_impl [function] [call site] 00132
4 __assert_fail [call site] 00133
4 coap_get_log_level [function] [call site] 00134
4 coap_log_impl [function] [call site] 00135
1 coap_get_query [function] [call site] 00136
2 coap_option_filter_clear [function] [call site] 00137
2 coap_option_filter_set [function] [call site] 00138
2 coap_option_iterator_init [function] [call site] 00139
3 __assert_fail [call site] 00140
3 __assert_fail [call site] 00141
3 __assert_fail [call site] 00142
2 coap_option_next [function] [call site] 00143
3 __assert_fail [call site] 00144
3 opt_finished [function] [call site] 00145
4 __assert_fail [call site] 00146
3 coap_opt_parse [function] [call site] 00147
3 __assert_fail [call site] 00148
3 coap_option_filter_get [function] [call site] 00149
4 coap_option_filter_op [function] [call site] 00150
2 coap_opt_length [function] [call site] 00151
2 coap_opt_value [function] [call site] 00152
2 is_unescaped_in_query [function] [call site] 00153
3 is_unescaped_in_path [function] [call site] 00154
2 coap_new_string [function] [call site] 00155
3 coap_malloc_type [function] [call site] 00156
3 coap_get_log_level [function] [call site] 00157
3 coap_log_impl [function] [call site] 00158
2 coap_option_iterator_init [function] [call site] 00159
2 coap_option_next [function] [call site] 00160
2 coap_opt_length [function] [call site] 00161
2 coap_opt_value [function] [call site] 00162
2 is_unescaped_in_query [function] [call site] 00163
1 coap_get_uri_path [function] [call site] 00164
2 coap_check_option [function] [call site] 00165
3 coap_option_filter_clear [function] [call site] 00166
3 coap_option_filter_set [function] [call site] 00167
3 coap_option_iterator_init [function] [call site] 00168
3 coap_option_next [function] [call site] 00169
2 coap_check_option [function] [call site] 00170
2 coap_check_option [function] [call site] 00171
2 coap_opt_value [function] [call site] 00172
2 coap_opt_length [function] [call site] 00173
2 coap_decode_var_bytes [function] [call site] 00174
2 coap_map_abbrev_uri_path [function] [call site] 00175
2 strlen [call site] 00176
2 coap_new_string [function] [call site] 00177
2 strlen [call site] 00178
2 coap_check_option [function] [call site] 00179
2 coap_opt_value [function] [call site] 00180
2 coap_opt_length [function] [call site] 00181
2 coap_split_proxy_uri [function] [call site] 00182
3 coap_split_uri_sub [function] [call site] 00183
4 strlen [call site] 00184
4 memcmp [call site] 00185
4 coap_get_log_level [function] [call site] 00186
4 coap_log_impl [function] [call site] 00187
4 coap_get_log_level [function] [call site] 00188
4 coap_log_impl [function] [call site] 00189
4 coap_dtls_is_supported [function] [call site] 00190
5 OpenSSL_version_num [call site] 00191
5 coap_get_log_level [function] [call site] 00192
5 coap_log_impl [function] [call site] 00193
5 OpenSSL_version_num [call site] 00194
5 coap_get_log_level [function] [call site] 00195
5 coap_log_impl [function] [call site] 00196
4 coap_get_log_level [function] [call site] 00197
4 coap_log_impl [function] [call site] 00198
4 coap_tcp_is_supported [function] [call site] 00199
4 coap_get_log_level [function] [call site] 00200
4 coap_log_impl [function] [call site] 00201
4 coap_tls_is_supported [function] [call site] 00202
5 OpenSSL_version_num [call site] 00203
5 coap_get_log_level [function] [call site] 00204
5 coap_log_impl [function] [call site] 00205
5 OpenSSL_version_num [call site] 00206
5 coap_get_log_level [function] [call site] 00207
5 coap_log_impl [function] [call site] 00208
4 coap_get_log_level [function] [call site] 00209
4 coap_log_impl [function] [call site] 00210
4 coap_ws_is_supported [function] [call site] 00211
5 coap_tcp_is_supported [function] [call site] 00212
4 coap_get_log_level [function] [call site] 00213
4 coap_log_impl [function] [call site] 00214
4 coap_wss_is_supported [function] [call site] 00215
5 coap_tls_is_supported [function] [call site] 00216
4 coap_get_log_level [function] [call site] 00217
4 coap_log_impl [function] [call site] 00218
4 coap_get_log_level [function] [call site] 00219
4 coap_log_impl [function] [call site] 00220
4 strncmp [call site] 00221
4 coap_get_log_level [function] [call site] 00222
4 coap_log_impl [function] [call site] 00223
4 __ctype_b_loc [call site] 00224
4 coap_get_log_level [function] [call site] 00225
4 coap_log_impl [function] [call site] 00226
4 coap_get_log_level [function] [call site] 00227
4 coap_log_impl [function] [call site] 00228
4 __ctype_b_loc [call site] 00229
4 coap_get_log_level [function] [call site] 00230
4 coap_log_impl [function] [call site] 00231
2 coap_new_string [function] [call site] 00232
2 coap_option_filter_clear [function] [call site] 00233
2 coap_option_filter_set [function] [call site] 00234
2 coap_option_iterator_init [function] [call site] 00235
2 coap_option_next [function] [call site] 00236
2 coap_opt_length [function] [call site] 00237
2 coap_opt_value [function] [call site] 00238
2 is_unescaped_in_path [function] [call site] 00239
2 coap_new_string [function] [call site] 00240
2 coap_option_iterator_init [function] [call site] 00241
2 coap_option_next [function] [call site] 00242
2 coap_opt_length [function] [call site] 00243
2 coap_opt_value [function] [call site] 00244
2 is_unescaped_in_path [function] [call site] 00245
1 coap_show_pdu [function] [call site] 00246
2 coap_get_log_level [function] [call site] 00247
2 msg_type_string [function] [call site] 00248
2 msg_code_string [function] [call site] 00249
3 snprintf [call site] 00250
2 snprintf [call site] 00251
2 coap_get_log_level [function] [call site] 00252
2 coap_log_impl [function] [call site] 00253
2 msg_code_string [function] [call site] 00254
2 snprintf [call site] 00255
2 coap_get_log_level [function] [call site] 00256
2 coap_log_impl [function] [call site] 00257
2 msg_code_string [function] [call site] 00258
2 snprintf [call site] 00259
2 strlen [call site] 00260
2 snprintf [call site] 00261
2 strlen [call site] 00262
2 snprintf [call site] 00263
2 coap_option_iterator_init [function] [call site] 00264
2 strlen [call site] 00265
2 snprintf [call site] 00266
2 coap_option_next [function] [call site] 00267
2 strlen [call site] 00268
2 snprintf [call site] 00269
2 coap_opt_value [function] [call site] 00270
2 coap_opt_length [function] [call site] 00271
2 coap_decode_var_bytes [function] [call site] 00272
2 snprintf [call site] 00273
2 coap_opt_value [function] [call site] 00274
2 coap_opt_length [function] [call site] 00275
2 print_readable [function] [call site] 00276
3 __assert_fail [call site] 00277
3 __ctype_b_loc [call site] 00278
2 coap_opt_value [function] [call site] 00279
2 coap_opt_length [function] [call site] 00280
2 coap_decode_var_bytes [function] [call site] 00281
2 snprintf [call site] 00282
2 coap_opt_value [function] [call site] 00283
2 coap_opt_length [function] [call site] 00284
2 coap_decode_var_bytes [function] [call site] 00285
2 snprintf [call site] 00286
2 coap_opt_value [function] [call site] 00287
2 coap_opt_length [function] [call site] 00288
2 coap_decode_var_bytes [function] [call site] 00289
2 print_content_format [function] [call site] 00290
3 snprintf [call site] 00291
3 snprintf [call site] 00292
2 coap_opt_length [function] [call site] 00293
2 coap_opt_value [function] [call site] 00294
2 coap_get_data [function] [call site] 00295
3 coap_get_data_large [function] [call site] 00296
4 __assert_fail [call site] 00297
4 __assert_fail [call site] 00298
4 __assert_fail [call site] 00299
2 coap_opt_block_num [function] [call site] 00300
3 coap_opt_length [function] [call site] 00301
3 coap_opt_value [function] [call site] 00302
3 coap_opt_length [function] [call site] 00303
3 coap_decode_var_bytes [function] [call site] 00304
3 coap_opt_length [function] [call site] 00305
3 coap_opt_value [function] [call site] 00306
2 coap_opt_length [function] [call site] 00307
2 coap_opt_value [function] [call site] 00308
2 snprintf [call site] 00309
2 coap_opt_block_num [function] [call site] 00310
2 coap_opt_length [function] [call site] 00311
2 coap_opt_value [function] [call site] 00312
2 snprintf [call site] 00313
2 coap_opt_block_num [function] [call site] 00314
2 coap_opt_length [function] [call site] 00315
2 coap_opt_value [function] [call site] 00316
2 coap_opt_length [function] [call site] 00317
2 coap_opt_value [function] [call site] 00318
2 snprintf [call site] 00319
2 coap_opt_length [function] [call site] 00320
2 coap_opt_value [function] [call site] 00321
2 snprintf [call site] 00322
2 strlen [call site] 00323
2 snprintf [call site] 00324
2 strlen [call site] 00325
2 snprintf [call site] 00326
2 strlen [call site] 00327
2 snprintf [call site] 00328
2 strlen [call site] 00329
2 snprintf [call site] 00330
2 strlen [call site] 00331
2 snprintf [call site] 00332
2 strlen [call site] 00333
2 snprintf [call site] 00334
2 strlen [call site] 00335
2 coap_opt_length [function] [call site] 00336
2 coap_opt_value [function] [call site] 00337
2 coap_opt_length [function] [call site] 00338
2 coap_decode_var_bytes [function] [call site] 00339
2 snprintf [call site] 00340
2 coap_opt_length [function] [call site] 00341
2 coap_opt_value [function] [call site] 00342
2 snprintf [call site] 00343
2 strlen [call site] 00344
2 snprintf [call site] 00345
2 strlen [call site] 00346
2 coap_opt_value [function] [call site] 00347
2 coap_opt_length [function] [call site] 00348
2 coap_decode_var_bytes [function] [call site] 00349
2 coap_map_abbrev_uri_path [function] [call site] 00350
2 coap_map_abbrev_uri_path [function] [call site] 00351
2 snprintf [call site] 00352
2 snprintf [call site] 00353
2 strlen [call site] 00354
2 coap_opt_value [function] [call site] 00355
2 coap_opt_length [function] [call site] 00356
2 print_readable [function] [call site] 00357
2 coap_opt_value [function] [call site] 00358
2 coap_opt_length [function] [call site] 00359
2 print_readable [function] [call site] 00360
2 strlen [call site] 00361
2 coap_option_string [function] [call site] 00362
3 snprintf [call site] 00363
2 snprintf [call site] 00364
2 strlen [call site] 00365
2 snprintf [call site] 00366
2 coap_get_data [function] [call site] 00367
2 strlen [call site] 00368
2 snprintf [call site] 00369
2 strlen [call site] 00370
2 snprintf [call site] 00371
2 fprintf [call site] 00372
2 coap_get_log_level [function] [call site] 00373
2 coap_log_impl [function] [call site] 00374
2 strlen [call site] 00375
2 snprintf [call site] 00376
2 is_binary [function] [call site] 00377
2 __ctype_b_loc [call site] 00378
2 strlen [call site] 00379
2 snprintf [call site] 00380
2 fprintf [call site] 00381
2 coap_get_log_level [function] [call site] 00382
2 coap_log_impl [function] [call site] 00383
2 snprintf [call site] 00384
2 strlen [call site] 00385
2 snprintf [call site] 00386
2 strlen [call site] 00387
2 snprintf [call site] 00388
2 strlen [call site] 00389
2 snprintf [call site] 00390
2 fprintf [call site] 00391
2 coap_get_log_level [function] [call site] 00392
2 coap_log_impl [function] [call site] 00393
2 snprintf [call site] 00394
2 strlen [call site] 00395
2 __ctype_b_loc [call site] 00396
2 snprintf [call site] 00397
2 strlen [call site] 00398
2 snprintf [call site] 00399
2 strlen [call site] 00400
2 print_readable [function] [call site] 00401
2 strlen [call site] 00402
2 snprintf [call site] 00403
2 fprintf [call site] 00404
2 coap_get_log_level [function] [call site] 00405
2 coap_log_impl [function] [call site] 00406
1 coap_pdu_encode_header [function] [call site] 00407
2 coap_get_log_level [function] [call site] 00408
2 coap_log_impl [function] [call site] 00409
2 __assert_fail [call site] 00410
2 coap_get_log_level [function] [call site] 00411
2 coap_log_impl [function] [call site] 00412
2 __assert_fail [call site] 00413
2 coap_get_log_level [function] [call site] 00414
2 coap_log_impl [function] [call site] 00415
2 __assert_fail [call site] 00416
2 coap_get_log_level [function] [call site] 00417
2 coap_log_impl [function] [call site] 00418
2 __assert_fail [call site] 00419
2 coap_get_log_level [function] [call site] 00420
2 coap_log_impl [function] [call site] 00421
2 __assert_fail [call site] 00422
2 coap_get_log_level [function] [call site] 00423
2 coap_log_impl [function] [call site] 00424
2 __assert_fail [call site] 00425
2 coap_get_log_level [function] [call site] 00426
2 coap_log_impl [function] [call site] 00427
2 coap_get_log_level [function] [call site] 00428
2 coap_log_impl [function] [call site] 00429
1 coap_delete_string [function] [call site] 00430
2 coap_free_type [function] [call site] 00431
1 coap_delete_string [function] [call site] 00432
1 coap_delete_pdu [function] [call site] 00433
2 coap_delete_pdu_lkd [function] [call site] 00434
3 coap_free_type [function] [call site] 00435
3 coap_delete_binary [function] [call site] 00436
4 coap_free_type [function] [call site] 00437
3 coap_free_type [function] [call site] 00438
1 coap_cleanup [function] [call site] 00439
2 coap_dtls_shutdown [function] [call site] 00440
3 ENGINE_finish [call site] 00441
3 ENGINE_finish [call site] 00442
3 coap_dtls_set_log_level [function] [call site] 00443
2 coap_delete_upa_chain [function] [call site] 00444
3 coap_free_type [function] [call site] 00445
2 coap_delete_upa_chain [function] [call site] 00446
2 coap_debug_reset [function] [call site] 00447