Fuzz introspector: fuzz-stun
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
25 284 pj_stun_create_key call site: 00284 pj_strdup
23 191 pj_stun_msg_decode call site: 00191 pj_stun_msg_create_response
13 357 pj_stun_authenticate_request call site: 00357 create_challenge
8 223 pj_stun_msg_decode call site: 00223 pj_log
6 261 pj_stun_msg_decode call site: 00261 pj_log_4
5 37 pj_ansi_strxcpy call site: 00037 pj_ansi_strxcpy
5 249 pjlib_error call site: 00249 platform_strerror
5 317 pj_stun_authenticate_request call site: 00317 pj_strcmp
4 49 pj_thread_this call site: 00049 pj_thread_get_name
4 312 pj_stun_authenticate_request call site: 00312 pj_stun_create_key
4 379 reset_pool call site: 00379 pj_log_4
3 217 pj_strdup call site: 00217 pj_stun_msg_add_attr

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 calloc [call site] 00001
1 pj_init [function] [call site] 00002
2 pj_log_init [function] [call site] 00003
3 pj_thread_local_alloc [function] [call site] 00004
4 __assert_fail [call site] 00005
4 pthread_key_create [call site] 00006
3 pj_thread_local_alloc [function] [call site] 00007
3 pj_thread_local_free [function] [call site] 00008
4 pthread_key_delete [call site] 00009
3 pj_atexit [function] [call site] 00010
3 logging_shutdown [function] [call site] 00011
4 pj_thread_local_free [function] [call site] 00012
4 pj_thread_local_free [function] [call site] 00013
3 pj_log_get_decor [function] [call site] 00014
3 pj_log_set_decor [function] [call site] 00015
2 pj_thread_init [function] [call site] 00016
3 pj_thread_local_alloc [function] [call site] 00017
3 pj_thread_register [function] [call site] 00018
4 pj_str [function] [call site] 00019
5 strlen [call site] 00020
4 pj_thread_local_get [function] [call site] 00021
5 pthread_getspecific [call site] 00022
4 pj_log_get_level [function] [call site] 00023
4 pj_log_4 [function] [call site] 00024
5 pj_log [function] [call site] 00025
6 is_logging_suspended [function] [call site] 00026
7 pj_thread_local_get [function] [call site] 00027
6 suspend_logging [function] [call site] 00028
7 pj_thread_local_set [function] [call site] 00029
8 pthread_setspecific [call site] 00030
6 pj_gettimeofday [function] [call site] 00031
7 gettimeofday [call site] 00032
7 __errno_location [call site] 00033
6 pj_time_decode [function] [call site] 00034
7 localtime_r [call site] 00035
6 pj_ansi_strxcpy [function] [call site] 00036
7 __assert_fail [call site] 00037
6 pj_ansi_strxcpy [function] [call site] 00038
6 pj_utoa [function] [call site] 00039
7 pj_utoa_pad [function] [call site] 00040
6 pj_utoa_pad [function] [call site] 00041
6 pj_utoa_pad [function] [call site] 00042
6 pj_utoa_pad [function] [call site] 00043
6 pj_utoa_pad [function] [call site] 00044
6 pj_utoa_pad [function] [call site] 00045
6 pj_utoa_pad [function] [call site] 00046
6 strlen [call site] 00047
6 pj_thread_this [function] [call site] 00048
7 pj_thread_local_get [function] [call site] 00049
7 __assert_fail [call site] 00050
6 pj_thread_get_name [function] [call site] 00051
7 __assert_fail [call site] 00052
6 strlen [call site] 00053
6 pj_thread_this [function] [call site] 00054
6 pj_log_get_indent [function] [call site] 00055
7 log_get_raw_indent [function] [call site] 00056
8 pj_thread_local_get [function] [call site] 00057
6 pj_memset [function] [call site] 00058
6 vsnprintf [call site] 00059
6 snprintf [call site] 00060
6 resume_logging [function] [call site] 00061
7 pj_thread_local_set [function] [call site] 00062
4 pthread_self [call site] 00063
4 __assert_fail [call site] 00064
4 pj_bzero [function] [call site] 00065
4 pthread_self [call site] 00066
4 pj_strlen [function] [call site] 00067
4 snprintf [call site] 00068
4 snprintf [call site] 00069
4 pj_thread_local_set [function] [call site] 00070
4 pj_bzero [function] [call site] 00071
2 init_mutex [function] [call site] 00072
3 pthread_mutexattr_init [call site] 00073
3 pthread_mutexattr_settype [call site] 00074
3 pthread_mutexattr_settype [call site] 00075
3 pthread_mutex_init [call site] 00076
3 pthread_mutexattr_destroy [call site] 00077
3 pthread_mutex_destroy [call site] 00078
3 strchr [call site] 00079
3 snprintf [call site] 00080
3 pj_ansi_strxcpy [function] [call site] 00081
2 pj_exception_id_alloc [function] [call site] 00082
3 pj_enter_critical_section [function] [call site] 00083
4 pj_mutex_lock [function] [call site] 00084
5 __assert_fail [call site] 00085
5 pthread_mutex_lock [call site] 00086
5 pj_thread_this [function] [call site] 00087
5 pj_ansi_strxcpy [function] [call site] 00088
3 pj_leave_critical_section [function] [call site] 00089
4 pj_mutex_unlock [function] [call site] 00090
5 __assert_fail [call site] 00091
5 pj_thread_this [function] [call site] 00092
5 __assert_fail [call site] 00093
5 pthread_mutex_unlock [call site] 00094
3 pj_leave_critical_section [function] [call site] 00095
2 pj_generate_unique_string [function] [call site] 00096
3 pj_enter_critical_section [function] [call site] 00097
3 init_guid_chars [function] [call site] 00098
3 pj_leave_critical_section [function] [call site] 00099
3 pj_rand [function] [call site] 00100
4 rand [call site] 00101
2 pj_get_timestamp [function] [call site] 00102
3 clock_gettime [call site] 00103
3 __errno_location [call site] 00104
2 __assert_fail [call site] 00105
2 pj_log_get_level [function] [call site] 00106
2 pj_log_4 [function] [call site] 00107
1 pj_caching_pool_init [function] [call site] 00108
2 pj_bzero [function] [call site] 00109
2 pj_list_init [function] [call site] 00110
2 pj_list_init [function] [call site] 00111
2 pj_memcpy [function] [call site] 00112
2 pj_pool_create_on_buf [function] [call site] 00113
3 __assert_fail [call site] 00114
3 pool_buf_initialize [function] [call site] 00115
4 pj_atexit [function] [call site] 00116
4 pool_buf_cleanup [function] [call site] 00117
5 pj_thread_local_free [function] [call site] 00118
4 pj_thread_local_alloc [function] [call site] 00119
3 pj_thread_local_set [function] [call site] 00120
3 pj_pool_create_int [function] [call site] 00121
4 __assert_fail [call site] 00122
4 __assert_fail [call site] 00123
4 pj_bzero [function] [call site] 00124
4 pj_list_init [function] [call site] 00125
4 pj_list_insert_after [function] [call site] 00126
4 pj_pool_init_int [function] [call site] 00127
5 __assert_fail [call site] 00128
5 strchr [call site] 00129
5 snprintf [call site] 00130
5 pj_ansi_strxcpy [function] [call site] 00131
2 pj_lock_create_simple_mutex [function] [call site] 00132
3 create_mutex_lock [function] [call site] 00133
4 __assert_fail [call site] 00134
4 pj_pool_alloc [function] [call site] 00135
5 pj_pool_aligned_alloc [function] [call site] 00136
6 __assert_fail [call site] 00137
6 pj_pool_alloc_from_block [function] [call site] 00138
7 __assert_fail [call site] 00139
6 pj_pool_allocate_find [function] [call site] 00140
7 __assert_fail [call site] 00141
7 pj_pool_alloc_from_block [function] [call site] 00142
7 pj_pool_create_block [function] [call site] 00143
8 __assert_fail [call site] 00144
8 pj_list_insert_after [function] [call site] 00145
7 pj_pool_alloc_from_block [function] [call site] 00146
7 __assert_fail [call site] 00147
4 pj_memcpy [function] [call site] 00148
4 pj_mutex_create [function] [call site] 00149
5 __assert_fail [call site] 00150
5 pj_pool_alloc [function] [call site] 00151
5 __assert_fail [call site] 00152
5 init_mutex [function] [call site] 00153
2 __assert_fail [call site] 00154
1 pj_log_set_level [function] [call site] 00155
1 stun_parse [function] [call site] 00156
2 pj_pool_create [function] [call site] 00157
3 pj_pool_aligned_create [function] [call site] 00158
2 pj_stun_msg_decode [function] [call site] 00159
3 __assert_fail [call site] 00160
3 pj_stun_msg_check [function] [call site] 00161
4 __assert_fail [call site] 00162
4 GETVAL16H [function] [call site] 00163
4 GETVAL32H [function] [call site] 00164
4 GETVAL16H [function] [call site] 00165
4 GETVAL16H [function] [call site] 00166
4 GETVAL32H [function] [call site] 00167
4 pj_crc32_calc [function] [call site] 00168
5 pj_crc32_init [function] [call site] 00169
5 pj_crc32_update [function] [call site] 00170
5 pj_crc32_final [function] [call site] 00171
3 GETVAL16H [function] [call site] 00172
3 pj_pool_zalloc [function] [call site] 00173
4 pj_pool_calloc [function] [call site] 00174
5 pj_pool_alloc [function] [call site] 00175
5 pj_bzero [function] [call site] 00176
3 pj_memcpy [function] [call site] 00177
3 pj_ntohs [function] [call site] 00178
4 ntohs [call site] 00179
3 pj_ntohs [function] [call site] 00180
3 pj_ntohl [function] [call site] 00181
4 ntohl [call site] 00182
3 GETVAL16H [function] [call site] 00183
3 GETVAL16H [function] [call site] 00184
3 pj_stun_get_attr_name [function] [call site] 00185
4 find_attr_desc [function] [call site] 00186
5 __assert_fail [call site] 00187
5 __assert_fail [call site] 00188
3 snprintf [call site] 00189
3 pj_log_get_level [function] [call site] 00190
3 pj_log_4 [function] [call site] 00191
3 pj_stun_msg_create_response [function] [call site] 00192
4 __assert_fail [call site] 00193
4 __assert_fail [call site] 00194
4 pj_stun_msg_create [function] [call site] 00195
5 __assert_fail [call site] 00196
5 pj_pool_zalloc [function] [call site] 00197
5 pj_stun_msg_init [function] [call site] 00198
6 __assert_fail [call site] 00199
6 pj_memcpy [function] [call site] 00200
6 pj_rand [function] [call site] 00201
6 pj_getpid [function] [call site] 00202
7 getpid [call site] 00203
6 pj_rand [function] [call site] 00204
6 pj_memcpy [function] [call site] 00205
4 pj_stun_msg_add_errcode_attr [function] [call site] 00206
5 pj_stun_errcode_attr_create [function] [call site] 00207
6 __assert_fail [call site] 00208
6 pj_stun_get_err_reason [function] [call site] 00209
7 pj_str [function] [call site] 00210
7 pj_str [function] [call site] 00211
6 snprintf [call site] 00212
6 pj_pool_zalloc [function] [call site] 00213
6 pj_strdup [function] [call site] 00214
7 __assert_fail [call site] 00215
7 pj_pool_alloc [function] [call site] 00216
7 pj_memcpy [function] [call site] 00217
5 pj_stun_msg_add_attr [function] [call site] 00218
6 __assert_fail [call site] 00219
6 __assert_fail [call site] 00220
3 find_attr_desc [function] [call site] 00221
3 pj_log_get_level [function] [call site] 00222
3 pj_log_5 [function] [call site] 00223
4 pj_log [function] [call site] 00224
3 pj_stun_msg_create_response [function] [call site] 00225
3 pj_stun_msg_add_unknown_attr [function] [call site] 00226
4 pj_stun_unknown_attr_create [function] [call site] 00227
5 __assert_fail [call site] 00228
5 pj_pool_zalloc [function] [call site] 00229
4 pj_stun_msg_add_attr [function] [call site] 00230
3 pj_stun_msg_create_response [function] [call site] 00231
3 GETVAL16H [function] [call site] 00232
3 pj_stun_binary_attr_create [function] [call site] 00233
4 __assert_fail [call site] 00234
4 pj_pool_zalloc [function] [call site] 00235
4 pj_stun_binary_attr_init [function] [call site] 00236
5 __assert_fail [call site] 00237
5 pj_pool_alloc [function] [call site] 00238
5 pj_memcpy [function] [call site] 00239
3 pj_stun_msg_create_response [function] [call site] 00240
3 pj_log_get_level [function] [call site] 00241
3 pj_log_4 [function] [call site] 00242
3 pj_strerror [function] [call site] 00243
4 __assert_fail [call site] 00244
4 snprintf [call site] 00245
4 snprintf [call site] 00246
4 pjlib_error [function] [call site] 00247
5 strlen [call site] 00248
5 pj_memcpy [function] [call site] 00249
5 snprintf [call site] 00250
4 platform_strerror [function] [call site] 00251
5 strerror [call site] 00252
5 strlen [call site] 00253
5 pj_memcpy [function] [call site] 00254
4 snprintf [call site] 00255
3 pj_stun_get_attr_name [function] [call site] 00256
3 snprintf [call site] 00257
3 pj_stun_msg_create_response [function] [call site] 00258
3 pj_log_get_level [function] [call site] 00259
3 pj_stun_get_attr_name [function] [call site] 00260
3 pj_log_4 [function] [call site] 00261
3 pj_stun_msg_create_response [function] [call site] 00262
3 pj_stun_msg_create_response [function] [call site] 00263
3 pj_stun_msg_create_response [function] [call site] 00264
3 pj_stun_msg_create_response [function] [call site] 00265
3 pj_log_get_level [function] [call site] 00266
3 pj_log_4 [function] [call site] 00267
2 pj_bzero [function] [call site] 00268
2 pj_stun_authenticate_request [function] [call site] 00269
3 __assert_fail [call site] 00270
3 __assert_fail [call site] 00271
3 pj_bzero [function] [call site] 00272
3 __assert_fail [call site] 00273
3 pj_stun_msg_find_attr [function] [call site] 00274
4 __assert_fail [call site] 00275
3 pj_stun_msg_find_attr [function] [call site] 00276
3 pj_strcmp [function] [call site] 00277
4 __assert_fail [call site] 00278
4 __assert_fail [call site] 00279
4 pj_memcmp [function] [call site] 00280
5 memcmp [call site] 00281
3 pj_strdup [function] [call site] 00282
3 pj_stun_create_key [function] [call site] 00283
4 __assert_fail [call site] 00284
4 pj_pool_alloc [function] [call site] 00285
4 calc_md5_key [function] [call site] 00286
5 pj_md5_init [function] [call site] 00287
5 pj_md5_update [function] [call site] 00288
6 pj_memcpy [function] [call site] 00289
6 pj_memcpy [function] [call site] 00290
6 MD5Transform [function] [call site] 00291
6 pj_memcpy [function] [call site] 00292
6 MD5Transform [function] [call site] 00293
6 pj_memcpy [function] [call site] 00294
5 pj_md5_update [function] [call site] 00295
5 pj_md5_update [function] [call site] 00296
5 pj_md5_update [function] [call site] 00297
5 pj_md5_update [function] [call site] 00298
5 pj_md5_final [function] [call site] 00299
6 pj_bzero [function] [call site] 00300
6 MD5Transform [function] [call site] 00301
6 pj_bzero [function] [call site] 00302
6 pj_bzero [function] [call site] 00303
6 pj_memcpy [function] [call site] 00304
6 pj_memcpy [function] [call site] 00305
6 MD5Transform [function] [call site] 00306
6 pj_memcpy [function] [call site] 00307
6 pj_bzero [function] [call site] 00308
4 pj_strdup [function] [call site] 00309
4 __assert_fail [call site] 00310
4 pj_strdup [function] [call site] 00311
3 __assert_fail [call site] 00312
3 pj_strdup [function] [call site] 00313
3 pj_stun_create_key [function] [call site] 00314
3 __assert_fail [call site] 00315
3 __assert_fail [call site] 00316
3 pj_stun_msg_find_attr [function] [call site] 00317
3 pj_stricmp [function] [call site] 00318
4 __assert_fail [call site] 00319
4 __assert_fail [call site] 00320
4 strncasecmp [call site] 00321
3 pj_strcmp [function] [call site] 00322
3 pj_hmac_sha1_init [function] [call site] 00323
4 pj_sha1_init [function] [call site] 00324
4 pj_sha1_update [function] [call site] 00325
5 pj_memcpy [function] [call site] 00326
5 SHA1_Transform [function] [call site] 00327
5 pj_memcpy [function] [call site] 00328
5 SHA1_Transform [function] [call site] 00329
5 pj_memcpy [function] [call site] 00330
4 pj_sha1_final [function] [call site] 00331
5 pj_sha1_update [function] [call site] 00332
5 pj_sha1_update [function] [call site] 00333
5 pj_sha1_update [function] [call site] 00334
5 pj_memset [function] [call site] 00335
5 pj_memset [function] [call site] 00336
5 pj_memset [function] [call site] 00337
5 pj_memset [function] [call site] 00338
4 pj_bzero [function] [call site] 00339
4 pj_bzero [function] [call site] 00340
4 pj_memcpy [function] [call site] 00341
4 pj_memcpy [function] [call site] 00342
4 pj_sha1_init [function] [call site] 00343
4 pj_sha1_update [function] [call site] 00344
3 pj_memcpy [function] [call site] 00345
3 PUT_VAL16 [function] [call site] 00346
3 pj_hmac_sha1_update [function] [call site] 00347
4 pj_sha1_update [function] [call site] 00348
3 pj_hmac_sha1_update [function] [call site] 00349
3 pj_hmac_sha1_update [function] [call site] 00350
3 pj_hmac_sha1_final [function] [call site] 00351
4 pj_sha1_final [function] [call site] 00352
4 pj_sha1_init [function] [call site] 00353
4 pj_sha1_update [function] [call site] 00354
4 pj_sha1_update [function] [call site] 00355
4 pj_sha1_final [function] [call site] 00356
3 pj_memcmp [function] [call site] 00357
3 create_challenge [function] [call site] 00358
4 pj_cstr [function] [call site] 00359
5 strlen [call site] 00360
4 pj_stun_msg_create_response [function] [call site] 00361
4 pj_stun_msg_add_string_attr [function] [call site] 00362
5 pj_stun_string_attr_create [function] [call site] 00363
6 __assert_fail [call site] 00364
6 pj_pool_zalloc [function] [call site] 00365
6 pj_stun_string_attr_init [function] [call site] 00366
7 pj_strdup [function] [call site] 00367
5 pj_stun_msg_add_attr [function] [call site] 00368
4 pj_str [function] [call site] 00369
4 pj_stun_msg_add_string_attr [function] [call site] 00370
2 pj_pool_release [function] [call site] 00371
2 pj_pool_release [function] [call site] 00372
1 pj_caching_pool_destroy [function] [call site] 00373
2 pj_list_erase [function] [call site] 00374
3 pj_link_node [function] [call site] 00375
3 pj_list_init [function] [call site] 00376
2 pj_pool_destroy_int [function] [call site] 00377
3 reset_pool [function] [call site] 00378
4 pj_list_erase [function] [call site] 00379
2 pj_list_erase [function] [call site] 00380
2 pj_log_get_level [function] [call site] 00381
2 pj_log_4 [function] [call site] 00382
2 pj_pool_destroy_int [function] [call site] 00383
2 pj_lock_destroy [function] [call site] 00384
3 __assert_fail [call site] 00385
2 pj_lock_create_null_mutex [function] [call site] 00386
3 __assert_fail [call site] 00387