Fuzz introspector: rtcp_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
10 7 janus_rtcp_check_len call site: 00007 janus_log_buffer_free
9 181 janus_rtcp_rr_update_stats call site: 00181 janus_vprintf
5 72 janus_rtcp_check_fci call site: 00072 janus_vprintf
4 37 janus_rtcp_check_sr call site: 00037 janus_vprintf
4 52 janus_rtcp_check_rr call site: 00052 janus_vprintf
4 194 janus_rtcp_incoming_report_block call site: 00194 janus_vprintf

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 janus_is_rtcp [function] [call site] 00001
1 janus_rtcp_has_bye [function] [call site] 00002
2 janus_rtcp_check_len [function] [call site] 00003
3 time [call site] 00004
3 localtime_r [call site] 00005
3 strftime [call site] 00006
3 janus_vprintf [function] [call site] 00007
4 g_async_queue_new_full [call site] 00008
4 janus_log_buffer_free [function] [call site] 00009
5 g_free [call site] 00010
5 g_free [call site] 00011
4 g_vasprintf [call site] 00012
4 g_free [call site] 00013
4 g_malloc [call site] 00014
4 janus_get_real_time [function] [call site] 00015
5 clock_gettime [call site] 00016
4 g_async_queue_push [call site] 00017
3 ntohs [call site] 00018
3 time [call site] 00019
3 localtime_r [call site] 00020
3 strftime [call site] 00021
3 janus_vprintf [function] [call site] 00022
2 ntohs [call site] 00023
1 janus_rtcp_has_fir [function] [call site] 00024
2 janus_rtcp_check_len [function] [call site] 00025
2 ntohs [call site] 00026
1 janus_rtcp_has_pli [function] [call site] 00027
2 janus_rtcp_check_len [function] [call site] 00028
2 ntohs [call site] 00029
1 janus_rtcp_get_receiver_ssrc [function] [call site] 00030
2 janus_rtcp_check_len [function] [call site] 00031
2 janus_rtcp_check_sr [function] [call site] 00032
3 ntohs [call site] 00033
3 time [call site] 00034
3 localtime_r [call site] 00035
3 strftime [call site] 00036
3 janus_vprintf [function] [call site] 00037
3 time [call site] 00038
3 localtime_r [call site] 00039
3 strftime [call site] 00040
3 janus_vprintf [function] [call site] 00041
3 time [call site] 00042
3 localtime_r [call site] 00043
3 strftime [call site] 00044
3 janus_vprintf [function] [call site] 00045
3 time [call site] 00046
3 localtime_r [call site] 00047
3 strftime [call site] 00048
3 janus_vprintf [function] [call site] 00049
2 ntohl [call site] 00050
2 janus_rtcp_check_rr [function] [call site] 00051
3 ntohs [call site] 00052
3 time [call site] 00053
3 localtime_r [call site] 00054
3 strftime [call site] 00055
3 janus_vprintf [function] [call site] 00056
3 time [call site] 00057
3 localtime_r [call site] 00058
3 strftime [call site] 00059
3 janus_vprintf [function] [call site] 00060
3 time [call site] 00061
3 localtime_r [call site] 00062
3 strftime [call site] 00063
3 janus_vprintf [function] [call site] 00064
2 ntohl [call site] 00065
2 janus_rtcp_check_fci [function] [call site] 00066
3 time [call site] 00067
3 localtime_r [call site] 00068
3 strftime [call site] 00069
3 janus_vprintf [function] [call site] 00070
3 ntohs [call site] 00071
3 ntohs [call site] 00072
3 ntohs [call site] 00073
3 time [call site] 00074
3 localtime_r [call site] 00075
3 strftime [call site] 00076
3 janus_vprintf [function] [call site] 00077
2 ntohl [call site] 00078
2 janus_rtcp_check_fci [function] [call site] 00079
2 ntohl [call site] 00080
2 ntohs [call site] 00081
1 janus_rtcp_get_remb [function] [call site] 00082
2 janus_rtcp_check_len [function] [call site] 00083
2 janus_rtcp_check_remb [function] [call site] 00084
3 time [call site] 00085
3 localtime_r [call site] 00086
3 strftime [call site] 00087
3 janus_vprintf [function] [call site] 00088
3 time [call site] 00089
3 localtime_r [call site] 00090
3 strftime [call site] 00091
3 janus_vprintf [function] [call site] 00092
2 time [call site] 00093
2 localtime_r [call site] 00094
2 strftime [call site] 00095
2 janus_vprintf [function] [call site] 00096
2 ntohs [call site] 00097
1 janus_rtcp_get_sender_ssrc [function] [call site] 00098
2 janus_rtcp_check_len [function] [call site] 00099
2 ntohl [call site] 00100
2 ntohl [call site] 00101
2 ntohl [call site] 00102
2 ntohl [call site] 00103
2 ntohl [call site] 00104
2 ntohs [call site] 00105
1 janus_rtcp_cap_remb [function] [call site] 00106
2 janus_rtcp_check_len [function] [call site] 00107
2 janus_rtcp_check_remb [function] [call site] 00108
2 time [call site] 00109
2 localtime_r [call site] 00110
2 strftime [call site] 00111
2 janus_vprintf [function] [call site] 00112
2 time [call site] 00113
2 localtime_r [call site] 00114
2 strftime [call site] 00115
2 janus_vprintf [function] [call site] 00116
2 time [call site] 00117
2 localtime_r [call site] 00118
2 strftime [call site] 00119
2 janus_vprintf [function] [call site] 00120
2 time [call site] 00121
2 localtime_r [call site] 00122
2 strftime [call site] 00123
2 janus_vprintf [function] [call site] 00124
2 ntohs [call site] 00125
1 janus_rtcp_swap_report_blocks [function] [call site] 00126
2 janus_rtcp_check_len [function] [call site] 00127
2 janus_rtcp_check_sr [function] [call site] 00128
2 ntohl [call site] 00129
2 janus_rtcp_check_rr [function] [call site] 00130
2 ntohl [call site] 00131
2 time [call site] 00132
2 localtime_r [call site] 00133
2 strftime [call site] 00134
2 ntohl [call site] 00135
2 janus_vprintf [function] [call site] 00136
2 ntohs [call site] 00137
1 janus_rtcp_fix_report_data [function] [call site] 00138
2 janus_rtcp_check_len [function] [call site] 00139
2 janus_rtcp_check_rr [function] [call site] 00140
2 htonl [call site] 00141
2 htonl [call site] 00142
2 janus_rtcp_check_sr [function] [call site] 00143
2 ntohl [call site] 00144
2 time [call site] 00145
2 localtime_r [call site] 00146
2 strftime [call site] 00147
2 janus_vprintf [function] [call site] 00148
2 htonl [call site] 00149
2 ntohl [call site] 00150
2 htonl [call site] 00151
2 htonl [call site] 00152
2 ntohs [call site] 00153
1 janus_rtcp_fix_ssrc [function] [call site] 00154
2 time [call site] 00155
2 localtime_r [call site] 00156
2 strftime [call site] 00157
2 janus_vprintf [function] [call site] 00158
2 janus_rtcp_check_len [function] [call site] 00159
2 time [call site] 00160
2 localtime_r [call site] 00161
2 strftime [call site] 00162
2 janus_vprintf [function] [call site] 00163
2 janus_rtcp_check_sr [function] [call site] 00164
2 janus_rtcp_incoming_sr [function] [call site] 00165
3 janus_get_monotonic_time [function] [call site] 00166
4 janus_get_monotonic_time_internal [function] [call site] 00167
5 clock_gettime [call site] 00168
3 ntohl [call site] 00169
3 ntohl [call site] 00170
3 janus_rtcp_incoming_report_block [function] [call site] 00171
4 ntohl [call site] 00172
4 ntohl [call site] 00173
4 ntohl [call site] 00174
4 time [call site] 00175
4 localtime_r [call site] 00176
4 strftime [call site] 00177
4 janus_vprintf [function] [call site] 00178
4 janus_rtcp_rr_update_stats [function] [call site] 00179
5 janus_get_monotonic_time [function] [call site] 00180
5 ntohl [call site] 00181
5 ntohl [call site] 00182
5 janus_rtcp_link_quality_filter [function] [call site] 00183
5 janus_rtcp_link_quality_filter [function] [call site] 00184
5 time [call site] 00185
5 localtime_r [call site] 00186
5 strftime [call site] 00187
5 janus_rtcp_context_get_out_link_quality [function] [call site] 00188
5 janus_rtcp_context_get_out_media_link_quality [function] [call site] 00189
5 janus_vprintf [function] [call site] 00190
5 ntohl [call site] 00191
4 ntohl [call site] 00192
4 ntohl [call site] 00193
4 gettimeofday [call site] 00194
4 time [call site] 00195
4 localtime_r [call site] 00196
4 strftime [call site] 00197
4 janus_vprintf [function] [call site] 00198
2 htonl [call site] 00199
2 htonl [call site] 00200
2 time [call site] 00201
2 localtime_r [call site] 00202
2 strftime [call site] 00203
2 janus_vprintf [function] [call site] 00204
2 janus_rtcp_check_rr [function] [call site] 00205
2 janus_rtcp_incoming_rr [function] [call site] 00206
3 janus_rtcp_incoming_report_block [function] [call site] 00207
2 htonl [call site] 00208
2 htonl [call site] 00209
2 time [call site] 00210
2 localtime_r [call site] 00211
2 strftime [call site] 00212
2 janus_vprintf [function] [call site] 00213
2 htonl [call site] 00214
2 time [call site] 00215
2 localtime_r [call site] 00216
2 strftime [call site] 00217
2 janus_vprintf [function] [call site] 00218
2 htonl [call site] 00219
2 time [call site] 00220
2 localtime_r [call site] 00221
2 strftime [call site] 00222
2 janus_vprintf [function] [call site] 00223
2 htonl [call site] 00224
2 time [call site] 00225
2 localtime_r [call site] 00226
2 strftime [call site] 00227
2 janus_vprintf [function] [call site] 00228
2 time [call site] 00229
2 localtime_r [call site] 00230
2 strftime [call site] 00231
2 janus_vprintf [function] [call site] 00232
2 janus_rtcp_check_fci [function] [call site] 00233
2 htonl [call site] 00234
2 ntohs [call site] 00235
2 time [call site] 00236
2 localtime_r [call site] 00237
2 strftime [call site] 00238
2 snprintf [call site] 00239
2 janus_vprintf [function] [call site] 00240
2 ntohs [call site] 00241
2 ntohs [call site] 00242
2 time [call site] 00243
2 localtime_r [call site] 00244
2 strftime [call site] 00245
2 snprintf [call site] 00246
2 janus_vprintf [function] [call site] 00247
2 time [call site] 00248
2 localtime_r [call site] 00249
2 strftime [call site] 00250
2 janus_vprintf [function] [call site] 00251
2 janus_rtcp_check_fci [function] [call site] 00252
2 htonl [call site] 00253
2 janus_rtcp_incoming_transport_cc [function] [call site] 00254
3 janus_rtcp_check_fci [function] [call site] 00255
3 ntohs [call site] 00256
3 ntohs [call site] 00257
3 ntohl [call site] 00258
3 time [call site] 00259
3 localtime_r [call site] 00260
3 strftime [call site] 00261
3 janus_vprintf [function] [call site] 00262
3 time [call site] 00263
3 localtime_r [call site] 00264
3 strftime [call site] 00265
3 janus_vprintf [function] [call site] 00266
3 ntohs [call site] 00267
3 time [call site] 00268
3 localtime_r [call site] 00269
3 strftime [call site] 00270
3 janus_rtp_packet_status_description [function] [call site] 00271
3 janus_vprintf [function] [call site] 00272
3 g_list_prepend [call site] 00273
3 time [call site] 00274
3 localtime_r [call site] 00275
3 strftime [call site] 00276
3 janus_vprintf [function] [call site] 00277
3 g_list_prepend [call site] 00278
3 g_list_free [call site] 00279
3 g_list_reverse [call site] 00280
3 time [call site] 00281
3 localtime_r [call site] 00282
3 strftime [call site] 00283
3 g_list_length [call site] 00284
3 janus_vprintf [function] [call site] 00285
3 ntohs [call site] 00286
3 time [call site] 00287
3 localtime_r [call site] 00288
3 strftime [call site] 00289
3 janus_rtp_packet_status_description [function] [call site] 00290
3 janus_vprintf [function] [call site] 00291
3 g_list_free [call site] 00292
2 time [call site] 00293
2 localtime_r [call site] 00294
2 strftime [call site] 00295
2 janus_vprintf [function] [call site] 00296
2 htonl [call site] 00297
2 time [call site] 00298
2 localtime_r [call site] 00299
2 strftime [call site] 00300
2 janus_vprintf [function] [call site] 00301
2 janus_rtcp_check_fci [function] [call site] 00302
2 htonl [call site] 00303
2 time [call site] 00304
2 localtime_r [call site] 00305
2 strftime [call site] 00306
2 janus_vprintf [function] [call site] 00307
2 time [call site] 00308
2 localtime_r [call site] 00309
2 strftime [call site] 00310
2 janus_vprintf [function] [call site] 00311
2 time [call site] 00312
2 localtime_r [call site] 00313
2 strftime [call site] 00314
2 janus_vprintf [function] [call site] 00315
2 janus_rtcp_check_fci [function] [call site] 00316
2 htonl [call site] 00317
2 htonl [call site] 00318
2 time [call site] 00319
2 localtime_r [call site] 00320
2 strftime [call site] 00321
2 janus_vprintf [function] [call site] 00322
2 janus_rtcp_check_fci [function] [call site] 00323
2 htonl [call site] 00324
2 janus_rtcp_check_remb [function] [call site] 00325
2 time [call site] 00326
2 localtime_r [call site] 00327
2 strftime [call site] 00328
2 janus_vprintf [function] [call site] 00329
2 htonl [call site] 00330
2 time [call site] 00331
2 localtime_r [call site] 00332
2 strftime [call site] 00333
2 ntohl [call site] 00334
2 janus_vprintf [function] [call site] 00335
2 time [call site] 00336
2 localtime_r [call site] 00337
2 strftime [call site] 00338
2 janus_vprintf [function] [call site] 00339
2 time [call site] 00340
2 localtime_r [call site] 00341
2 strftime [call site] 00342
2 janus_vprintf [function] [call site] 00343
2 htonl [call site] 00344
2 htonl [call site] 00345
2 time [call site] 00346
2 localtime_r [call site] 00347
2 strftime [call site] 00348
2 snprintf [call site] 00349
2 janus_vprintf [function] [call site] 00350
2 ntohs [call site] 00351
2 time [call site] 00352
2 localtime_r [call site] 00353
2 strftime [call site] 00354
2 janus_vprintf [function] [call site] 00355
1 janus_rtcp_parse [function] [call site] 00356
2 janus_rtcp_fix_ssrc [function] [call site] 00357
1 janus_rtcp_remove_nacks [function] [call site] 00358
2 janus_rtcp_check_len [function] [call site] 00359
2 janus_rtcp_check_fci [function] [call site] 00360
2 ntohs [call site] 00361
1 janus_rtcp_filter [function] [call site] 00362
2 janus_rtcp_check_len [function] [call site] 00363
2 ntohs [call site] 00364
2 time [call site] 00365
2 localtime_r [call site] 00366
2 strftime [call site] 00367
2 snprintf [call site] 00368
2 janus_vprintf [function] [call site] 00369
2 g_malloc0 [call site] 00370
2 g_free [call site] 00371
1 g_queue_new [call site] 00372
1 janus_rtcp_get_nacks [function] [call site] 00373
2 g_queue_clear [call site] 00374
2 janus_rtcp_check_len [function] [call site] 00375
2 janus_rtcp_check_fci [function] [call site] 00376
2 ntohs [call site] 00377
2 time [call site] 00378
2 localtime_r [call site] 00379
2 strftime [call site] 00380
2 snprintf [call site] 00381
2 janus_vprintf [function] [call site] 00382
2 ntohs [call site] 00383
2 g_queue_push_head [call site] 00384
2 ntohs [call site] 00385
2 g_queue_push_head [call site] 00386
2 time [call site] 00387
2 localtime_r [call site] 00388
2 strftime [call site] 00389
2 snprintf [call site] 00390
2 janus_vprintf [function] [call site] 00391
2 ntohs [call site] 00392
2 g_queue_clear [call site] 00393
1 g_free [call site] 00394
1 g_queue_free [call site] 00395