Fuzz introspector: fuzz_process
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
217 140 send_ra_forall call site: 00140 send_ra
95 33 check_device call site: 00033 update_device_info
6 6 addrtostr call site: 00006 __errno_location
6 386 process_ra call site: 00386 addrtostr
4 23 update_device_index call site: 00023 __errno_location
4 375 process_ra call site: 00375 ntohl
3 398 process_ra call site: 00398 check_dnssl_presence
2 15 process call site: 00015 flog
2 358 process_rs call site: 00358 reschedule_iface
1 19 process call site: 00019 dlog
1 133 process_rs call site: 00133 flog
1 136 process_rs call site: 00136 send_ra_forall

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 strcpy [call site] 00001
1 process [function] [call site] 00002
2 if_indextoname [call site] 00003
2 dlog [function] [call site] 00004
2 addrtostr [function] [call site] 00005
3 inet_ntop [call site] 00006
3 __errno_location [call site] 00007
3 strerror [call site] 00008
3 flog [function] [call site] 00009
3 strncpy [call site] 00010
2 flog [function] [call site] 00011
2 flog [function] [call site] 00012
2 flog [function] [call site] 00013
2 flog [function] [call site] 00014
2 htonl [call site] 00015
2 flog [function] [call site] 00016
2 flog [function] [call site] 00017
2 flog [function] [call site] 00018
2 find_iface_by_index [function] [call site] 00019
2 dlog [function] [call site] 00020
2 setup_iface [function] [call site] 00021
3 update_device_index [function] [call site] 00022
4 if_nametoindex [call site] 00023
4 __errno_location [call site] 00024
4 strerror [call site] 00025
4 flog [function] [call site] 00026
4 dlog [function] [call site] 00027
3 check_device [function] [call site] 00028
4 strlcpy [call site] 00029
4 ioctl [call site] 00030
4 __errno_location [call site] 00031
4 strerror [call site] 00032
4 flog [function] [call site] 00033
4 dlog [function] [call site] 00034
4 dlog [function] [call site] 00035
4 dlog [function] [call site] 00036
4 dlog [function] [call site] 00037
4 dlog [function] [call site] 00038
4 flog [function] [call site] 00039
4 dlog [function] [call site] 00040
3 update_device_info [function] [call site] 00041
4 strlcpy [call site] 00042
4 ioctl [call site] 00043
4 __errno_location [call site] 00044
4 strerror [call site] 00045
4 flog [function] [call site] 00046
4 dlog [function] [call site] 00047
4 get_interface_linkmtu [function] [call site] 00048
5 snprintf [call site] 00049
5 fopen [call site] 00050
5 __isoc23_fscanf [call site] 00051
5 __errno_location [call site] 00052
5 strerror [call site] 00053
5 flog [function] [call site] 00054
5 exit [call site] 00055
5 fclose [call site] 00056
5 flog [function] [call site] 00057
4 ioctl [call site] 00058
4 __errno_location [call site] 00059
4 strerror [call site] 00060
4 flog [function] [call site] 00061
4 hwstr [function] [call site] 00062
4 dlog [function] [call site] 00063
4 sprintf [call site] 00064
4 dlog [function] [call site] 00065
4 dlog [function] [call site] 00066
4 dlog [function] [call site] 00067
4 flog [function] [call site] 00068
4 memcmp [call site] 00069
4 flog [function] [call site] 00070
4 flog [function] [call site] 00071
3 check_iface [function] [call site] 00072
4 flog [function] [call site] 00073
4 check_ip6_iface_forwarding [function] [call site] 00074
5 snprintf [call site] 00075
5 fopen [call site] 00076
5 __isoc23_fscanf [call site] 00077
5 __errno_location [call site] 00078
5 strerror [call site] 00079
5 flog [function] [call site] 00080
5 exit [call site] 00081
5 fclose [call site] 00082
5 flog [function] [call site] 00083
4 flog [function] [call site] 00084
4 flog [function] [call site] 00085
4 flog [function] [call site] 00086
4 flog [function] [call site] 00087
4 flog [function] [call site] 00088
4 flog [function] [call site] 00089
4 flog [function] [call site] 00090
4 flog [function] [call site] 00091
4 flog [function] [call site] 00092
4 flog [function] [call site] 00093
4 flog [function] [call site] 00094
4 flog [function] [call site] 00095
3 setup_iface_addrs [function] [call site] 00096
4 get_iface_addrs [function] [call site] 00097
5 getifaddrs [call site] 00098
5 __errno_location [call site] 00099
5 strerror [call site] 00100
5 flog [function] [call site] 00101
5 strcmp [call site] 00102
5 realloc [call site] 00103
5 memcmp [call site] 00104
5 freeifaddrs [call site] 00105
5 realloc [call site] 00106
5 qsort [call site] 00107
5 cmp_iface_addrs [function] [call site] 00108
6 memcmp [call site] 00109
4 addrtostr [function] [call site] 00110
4 dlog [function] [call site] 00111
4 addrtostr [function] [call site] 00112
4 dlog [function] [call site] 00113
4 memcmp [call site] 00114
4 addrtostr [function] [call site] 00115
4 dlog [function] [call site] 00116
4 dlog [function] [call site] 00117
4 flog [function] [call site] 00118
3 dlog [function] [call site] 00119
3 setup_allrouters_membership [function] [call site] 00120
4 htonl [call site] 00121
4 htonl [call site] 00122
4 setsockopt [call site] 00123
4 __errno_location [call site] 00124
4 flog [function] [call site] 00125
3 dlog [function] [call site] 00126
2 flog [function] [call site] 00127
2 flog [function] [call site] 00128
2 dlog [function] [call site] 00129
2 process_rs [function] [call site] 00130
3 flog [function] [call site] 00131
3 flog [function] [call site] 00132
3 flog [function] [call site] 00133
3 flog [function] [call site] 00134
3 clock_gettime [call site] 00135
3 rand [call site] 00136
3 send_ra_forall [function] [call site] 00137
4 ensure_iface_setup [function] [call site] 00138
5 setup_iface [function] [call site] 00139
4 dlog [function] [call site] 00140
4 dlog [function] [call site] 00141
4 send_ra [function] [call site] 00142
5 dlog [function] [call site] 00143
5 clock_gettime [call site] 00144
5 update_iface_times [function] [call site] 00145
6 clock_gettime [call site] 00146
6 timespecdiff [function] [call site] 00147
6 decrement_lifetime [function] [call site] 00148
6 decrement_lifetime [function] [call site] 00149
6 addrtostr [function] [call site] 00150
6 dlog [function] [call site] 00151
5 addrtostr [function] [call site] 00152
5 addrtostr [function] [call site] 00153
5 new_safe_buffer [function] [call site] 00154
5 check_ip6_forwarding [function] [call site] 00155
6 fopen [call site] 00156
6 __isoc23_fscanf [call site] 00157
6 __errno_location [call site] 00158
6 strerror [call site] 00159
6 flog [function] [call site] 00160
6 exit [call site] 00161
6 fclose [call site] 00162
6 flog [function] [call site] 00163
6 flog [function] [call site] 00164
5 add_ra_header [function] [call site] 00165
6 htons [call site] 00166
6 htonl [call site] 00167
6 htonl [call site] 00168
6 safe_buffer_append [function] [call site] 00169
7 safe_buffer_resize [function] [call site] 00170
8 flog [function] [call site] 00171
8 exit [call site] 00172
8 realloc [call site] 00173
5 build_ra_options [function] [call site] 00174
6 new_safe_buffer_list [function] [call site] 00175
7 new_safe_buffer [function] [call site] 00176
6 add_ra_options_prefix [function] [call site] 00177
7 memcmp [call site] 00178
7 dlog [function] [call site] 00179
7 add_auto_prefixes_6to4 [function] [call site] 00180
8 get_v4addr [function] [call site] 00181
9 socket [call site] 00182
9 __errno_location [call site] 00183
9 strerror [call site] 00184
9 flog [function] [call site] 00185
9 strlcpy [call site] 00186
9 ioctl [call site] 00187
9 __errno_location [call site] 00188
9 strerror [call site] 00189
9 flog [function] [call site] 00190
9 close [call site] 00191
9 inet_ntoa [call site] 00192
9 close [call site] 00193
8 flog [function] [call site] 00194
8 htons [call site] 00195
8 addrtostr [function] [call site] 00196
8 dlog [function] [call site] 00197
8 limit_prefix_lifetimes [function] [call site] 00198
9 get_prefix_lifetimes [function] [call site] 00199
8 schedule_option_prefix [function] [call site] 00200
9 schedule_helper [function] [call site] 00201
8 safe_buffer_list_append [function] [call site] 00202
9 new_safe_buffer_list [function] [call site] 00203
8 add_ra_option_prefix [function] [call site] 00204
9 htonl [call site] 00205
9 htonl [call site] 00206
9 htonl [call site] 00207
9 htonl [call site] 00208
9 safe_buffer_append [function] [call site] 00209
7 dlog [function] [call site] 00210
7 add_auto_prefixes [function] [call site] 00211
8 getifaddrs [call site] 00212
8 __errno_location [call site] 00213
8 strerror [call site] 00214
8 flog [function] [call site] 00215
8 strncmp [call site] 00216
8 flog [function] [call site] 00217
8 htonl [call site] 00218
8 get_prefix6 [function] [call site] 00219
8 get_prefix6 [function] [call site] 00220
8 memcmp [call site] 00221
8 memcmp [call site] 00222
8 count_mask [function] [call site] 00223
9 countbits [function] [call site] 00224
8 addrtostr [function] [call site] 00225
8 dlog [function] [call site] 00226
8 limit_prefix_lifetimes [function] [call site] 00227
8 schedule_option_prefix [function] [call site] 00228
8 safe_buffer_list_append [function] [call site] 00229
8 add_ra_option_prefix [function] [call site] 00230
8 freeifaddrs [call site] 00231
7 memcmp [call site] 00232
7 dlog [function] [call site] 00233
7 add_auto_prefixes [function] [call site] 00234
7 schedule_option_prefix [function] [call site] 00235
7 safe_buffer_list_append [function] [call site] 00236
7 limit_prefix_lifetimes [function] [call site] 00237
7 add_ra_option_prefix [function] [call site] 00238
6 add_ra_options_nat64prefix [function] [call site] 00239
7 safe_buffer_list_append [function] [call site] 00240
7 add_ra_option_nat64prefix [function] [call site] 00241
8 htons [call site] 00242
8 safe_buffer_append [function] [call site] 00243
6 add_ra_options_route [function] [call site] 00244
7 schedule_option_route [function] [call site] 00245
8 schedule_helper [function] [call site] 00246
7 htonl [call site] 00247
7 safe_buffer_list_append [function] [call site] 00248
7 safe_buffer_append [function] [call site] 00249
6 add_ra_options_rdnss [function] [call site] 00250
7 schedule_option_rdnss [function] [call site] 00251
8 schedule_helper [function] [call site] 00252
7 flog [function] [call site] 00253
7 htonl [call site] 00254
7 safe_buffer_list_append [function] [call site] 00255
7 safe_buffer_resize [function] [call site] 00256
7 safe_buffer_append [function] [call site] 00257
7 safe_buffer_append [function] [call site] 00258
6 add_ra_options_dnssl [function] [call site] 00259
7 new_safe_buffer [function] [call site] 00260
7 schedule_option_dnssl [function] [call site] 00261
8 schedule_helper [function] [call site] 00262
7 serialize_domain_names [function] [call site] 00263
8 strchr [call site] 00264
8 strlen [call site] 00265
8 strchr [call site] 00266
8 safe_buffer_resize [function] [call site] 00267
8 safe_buffer_append [function] [call site] 00268
8 safe_buffer_append [function] [call site] 00269
8 safe_buffer_append [function] [call site] 00270
7 flog [function] [call site] 00271
7 htonl [call site] 00272
7 safe_buffer_list_append [function] [call site] 00273
7 safe_buffer_resize [function] [call site] 00274
7 safe_buffer_append [function] [call site] 00275
7 safe_buffer_append [function] [call site] 00276
7 safe_buffer_pad [function] [call site] 00277
8 safe_buffer_resize [function] [call site] 00278
7 safe_buffer_free [function] [call site] 00279
6 schedule_option_mtu [function] [call site] 00280
7 schedule_helper [function] [call site] 00281
6 new_safe_buffer_list [function] [call site] 00282
6 add_ra_option_mtu [function] [call site] 00283
7 htonl [call site] 00284
7 safe_buffer_append [function] [call site] 00285
6 schedule_option_sllao [function] [call site] 00286
7 schedule_helper [function] [call site] 00287
6 new_safe_buffer_list [function] [call site] 00288
6 add_ra_option_sllao [function] [call site] 00289
7 safe_buffer_append [function] [call site] 00290
7 safe_buffer_append [function] [call site] 00291
7 safe_buffer_pad [function] [call site] 00292
6 schedule_option_mipv6_rtr_adv_interval [function] [call site] 00293
7 schedule_helper [function] [call site] 00294
6 new_safe_buffer_list [function] [call site] 00295
6 add_ra_option_mipv6_rtr_adv_interval [function] [call site] 00296
7 htonl [call site] 00297
7 safe_buffer_append [function] [call site] 00298
6 schedule_option_mipv6_home_agent_info [function] [call site] 00299
7 schedule_helper [function] [call site] 00300
6 new_safe_buffer_list [function] [call site] 00301
6 add_ra_option_mipv6_home_agent_info [function] [call site] 00302
7 htons [call site] 00303
7 htons [call site] 00304
7 safe_buffer_append [function] [call site] 00305
6 schedule_option_lowpanco [function] [call site] 00306
7 schedule_helper [function] [call site] 00307
6 new_safe_buffer_list [function] [call site] 00308
6 add_ra_option_lowpanco [function] [call site] 00309
7 htons [call site] 00310
7 safe_buffer_append [function] [call site] 00311
6 schedule_option_abro [function] [call site] 00312
7 schedule_helper [function] [call site] 00313
6 new_safe_buffer_list [function] [call site] 00314
6 add_ra_option_abro [function] [call site] 00315
7 htons [call site] 00316
7 htons [call site] 00317
7 htons [call site] 00318
7 safe_buffer_append [function] [call site] 00319
6 schedule_option_capport [function] [call site] 00320
7 schedule_helper [function] [call site] 00321
6 new_safe_buffer_list [function] [call site] 00322
6 add_ra_option_capport [function] [call site] 00323
7 strlen [call site] 00324
7 safe_buffer_append [function] [call site] 00325
7 safe_buffer_append [function] [call site] 00326
7 safe_buffer_pad [function] [call site] 00327
5 new_safe_buffer [function] [call site] 00328
5 safe_buffer_append [function] [call site] 00329
5 dlog [function] [call site] 00330
5 flog [function] [call site] 00331
5 safe_buffer_append [function] [call site] 00332
5 dlog [function] [call site] 00333
5 really_send [function] [call site] 00334
6 htons [call site] 00335
6 htonl [call site] 00336
6 sendmsg [call site] 00337
5 __errno_location [call site] 00338
5 __errno_location [call site] 00339
5 strerror [call site] 00340
5 flog [function] [call site] 00341
5 __errno_location [call site] 00342
5 strerror [call site] 00343
5 dlog [function] [call site] 00344
5 safe_buffer_free [function] [call site] 00345
5 safe_buffer_list_free [function] [call site] 00346
6 safe_buffer_free [function] [call site] 00347
5 safe_buffer_free [function] [call site] 00348
5 safe_buffer_free [function] [call site] 00349
5 safe_buffer_list_free [function] [call site] 00350
5 safe_buffer_free [function] [call site] 00351
4 memcmp [call site] 00352
4 send_ra [function] [call site] 00353
4 send_ra [function] [call site] 00354
4 get_debuglevel [function] [call site] 00355
4 addrtostr [function] [call site] 00356
4 dlog [function] [call site] 00357
3 timespecdiff [function] [call site] 00358
3 dlog [function] [call site] 00359
3 reschedule_iface [function] [call site] 00360
4 dlog [function] [call site] 00361
4 next_timespec [function] [call site] 00362
5 clock_gettime [call site] 00363
3 send_ra_forall [function] [call site] 00364
3 rand_between [function] [call site] 00365
4 rand [call site] 00366
3 reschedule_iface [function] [call site] 00367
3 dlog [function] [call site] 00368
2 memcmp [call site] 00369
2 dlog [function] [call site] 00370
2 dlog [function] [call site] 00371
2 process_ra [function] [call site] 00372
3 addrtostr [function] [call site] 00373
3 flog [function] [call site] 00374
3 flog [function] [call site] 00375
3 ntohl [call site] 00376
3 flog [function] [call site] 00377
3 ntohl [call site] 00378
3 flog [function] [call site] 00379
3 flog [function] [call site] 00380
3 flog [function] [call site] 00381
3 flog [function] [call site] 00382
3 ntohl [call site] 00383
3 flog [function] [call site] 00384
3 ntohl [call site] 00385
3 ntohl [call site] 00386
3 addr_match [function] [call site] 00387
4 memcmp [call site] 00388
4 htonl [call site] 00389
3 addrtostr [function] [call site] 00390
3 flog [function] [call site] 00391
3 flog [function] [call site] 00392
3 flog [function] [call site] 00393
3 check_rdnss_presence [function] [call site] 00394
4 memcmp [call site] 00395
3 addrtostr [function] [call site] 00396
3 flog [function] [call site] 00397
3 flog [function] [call site] 00398
3 check_dnssl_presence [function] [call site] 00399
4 strcmp [call site] 00400
3 flog [function] [call site] 00401
3 strlen [call site] 00402
3 flog [function] [call site] 00403
3 strcat [call site] 00404
3 strncat [call site] 00405
3 dlog [function] [call site] 00406
3 dlog [function] [call site] 00407