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
9 7 janus_rtcp_check_len call site: 00007 janus_log_buffer_free
9 187 janus_rtcp_rr_update_stats call site: 00187 janus_vprintf
5 71 janus_rtcp_check_fci call site: 00071 janus_vprintf
4 36 janus_rtcp_check_sr call site: 00036 janus_vprintf
4 51 janus_rtcp_check_rr call site: 00051 janus_vprintf
4 200 janus_rtcp_incoming_rr call site: 00200 janus_vprintf
1 168 janus_rtcp_incoming_sr call site: 00168 ntohl

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