Fuzz introspector: libpcap/testprogs/fuzz/fuzz_filter.c
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
545 8 LLVMFuzzerTestOneInput call site: 00008 bpf_optimize
5 0 EP call site: 00000 pcap_open_dead
5 556 LLVMFuzzerTestOneInput call site: 00556 pcap_close
3 562 LLVMFuzzerTestOneInput call site: 00562 pcap_close
1 6 LLVMFuzzerTestOneInput call site: 00006
1 554 LLVMFuzzerTestOneInput call site: 00554

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 pcap_open_dead [function] [call site] 00001
2 pcap_open_dead_with_tstamp_precision [function] [call site] 00002
3 malloc [function] [call site] 00003
3 memset [function] [call site] 00004
1 printf [function] [call site] 00005
1 malloc [function] [call site] 00006
1 memcpy [function] [call site] 00007
1 pcap_compile [function] [call site] 00008
2 snprintf [function] [call site] 00009
2 WSAStartup [function] [call site] 00010
2 MAKEWORD [function] [call site] 00011
2 pcapint_fmt_errmsg_for_win32_err [function] [call site] 00012
3 va_start [function] [call site] 00013
3 pcapint_vfmt_errmsg_for_win32_err [function] [call site] 00014
4 vsnprintf [function] [call site] 00015
4 strlen [function] [call site] 00016
4 FormatMessageW [function] [call site] 00017
4 MAKELANGID [function] [call site] 00018
4 snprintf [function] [call site] 00019
4 utf_16le_to_utf_8_truncated [function] [call site] 00020
5 IS_LEADING_SURROGATE [function] [call site] 00021
5 IS_TRAILING_SURROGATE [function] [call site] 00022
5 SURROGATE_VALUE [function] [call site] 00023
5 IS_TRAILING_SURROGATE [function] [call site] 00024
4 snprintf [function] [call site] 00025
4 snprintf [function] [call site] 00026
4 utf_8_to_acp_truncated [function] [call site] 00027
5 cp_to_utf_16le [function] [call site] 00028
6 MultiByteToWideChar [function] [call site] 00029
6 malloc [function] [call site] 00030
6 MultiByteToWideChar [function] [call site] 00031
6 free [function] [call site] 00032
5 snprintf [function] [call site] 00033
5 WideCharToMultiByte [function] [call site] 00034
5 GetLastError [function] [call site] 00035
5 free [function] [call site] 00036
5 snprintf [function] [call site] 00037
5 snprintf [function] [call site] 00038
5 free [function] [call site] 00039
3 va_end [function] [call site] 00040
2 initchunks_ok [function] [call site] 00041
3 initcurrentchunk_ok [function] [call site] 00042
4 bpf_set_error [function] [call site] 00043
5 va_start [function] [call site] 00044
5 vsnprintf [function] [call site] 00045
5 va_end [function] [call site] 00046
4 CHUNKSIZE [function] [call site] 00047
4 calloc [function] [call site] 00048
4 bpf_set_error [function] [call site] 00049
2 init_regs [function] [call site] 00050
3 memset [function] [call site] 00051
2 pcap_snapshot [function] [call site] 00052
2 snprintf [function] [call site] 00053
2 pcap_lex_init [function] [call site] 00054
2 pcapint_fmt_errmsg_for_errno [function] [call site] 00055
3 va_start [function] [call site] 00056
3 pcapint_vfmt_errmsg_for_errno [function] [call site] 00057
4 vsnprintf [function] [call site] 00058
4 strlen [function] [call site] 00059
4 _wcserror_s [function] [call site] 00060
4 snprintf [function] [call site] 00061
4 utf_16le_to_utf_8_truncated [function] [call site] 00062
4 utf_8_to_acp_truncated [function] [call site] 00063
4 snprintf [function] [call site] 00064
4 pcap_strerror [function] [call site] 00065
5 strerror_s [function] [call site] 00066
5 pcapint_strlcpy [function] [call site] 00067
5 strerror_r [function] [call site] 00068
5 strerror_r [function] [call site] 00069
5 snprintf [function] [call site] 00070
5 snprintf [function] [call site] 00071
5 snprintf [function] [call site] 00072
5 strerror [function] [call site] 00073
3 va_end [function] [call site] 00074
2 pcap__scan_string [function] [call site] 00075
2 pcap_set_extra [function] [call site] 00076
2 init_linktype [function] [call site] 00077
3 pcap_datalink [function] [call site] 00078
3 bpf_set_error [function] [call site] 00079
2 pcap_parse [function] [call site] 00080
2 freeaddrinfo [function] [call site] 00081
2 gen_retblk [function] [call site] 00082
3 setjmp [function] [call site] 00083
3 gen_retblk_internal [function] [call site] 00084
4 new_block [function] [call site] 00085
5 newchunk [function] [call site] 00086
6 newchunk_nolongjmp [function] [call site] 00087
7 bpf_set_error [function] [call site] 00088
7 CHUNKSIZE [function] [call site] 00089
7 bpf_set_error [function] [call site] 00090
7 initcurrentchunk_ok [function] [call site] 00091
6 longjmp [function] [call site] 00092
2 bpf_optimize [function] [call site] 00093
3 memset [function] [call site] 00094
3 setjmp [function] [call site] 00095
3 opt_cleanup [function] [call site] 00096
4 free [function] [call site] 00097
4 free [function] [call site] 00098
4 free [function] [call site] 00099
4 free [function] [call site] 00100
4 free [function] [call site] 00101
4 free [function] [call site] 00102
3 opt_init [function] [call site] 00103
4 unMarkAll [function] [call site] 00104
4 count_blocks [function] [call site] 00105
5 isMarked [function] [call site] 00106
5 Mark [function] [call site] 00107
5 count_blocks [function] [call site] 00108
5 JT [function] [call site] 00109
5 count_blocks [function] [call site] 00110
5 JF [function] [call site] 00111
4 calloc [function] [call site] 00112
4 opt_error [function] [call site] 00113
4 unMarkAll [function] [call site] 00114
4 number_blks_r [function] [call site] 00115
5 isMarked [function] [call site] 00116
5 Mark [function] [call site] 00117
5 opt_error [function] [call site] 00118
5 number_blks_r [function] [call site] 00119
5 JT [function] [call site] 00120
5 number_blks_r [function] [call site] 00121
5 JF [function] [call site] 00122
4 opt_error [function] [call site] 00123
4 opt_error [function] [call site] 00124
4 calloc [function] [call site] 00125
4 opt_error [function] [call site] 00126
4 calloc [function] [call site] 00127
4 opt_error [function] [call site] 00128
4 opt_error [function] [call site] 00129
4 opt_error [function] [call site] 00130
4 opt_error [function] [call site] 00131
4 opt_error [function] [call site] 00132
4 opt_error [function] [call site] 00133
4 malloc [function] [call site] 00134
4 opt_error [function] [call site] 00135
4 slength [function] [call site] 00136
4 calloc [function] [call site] 00137
4 opt_error [function] [call site] 00138
4 calloc [function] [call site] 00139
4 opt_error [function] [call site] 00140
3 opt_loop [function] [call site] 00141
4 printf [function] [call site] 00142
4 opt_dump [function] [call site] 00143
5 dot_dump [function] [call site] 00144
6 memset [function] [call site] 00145
6 icode_to_fcode [function] [call site] 00146
7 setjmp [function] [call site] 00147
7 free [function] [call site] 00148
7 unMarkAll [function] [call site] 00149
7 count_stmts [function] [call site] 00150
8 isMarked [function] [call site] 00151
8 Mark [function] [call site] 00152
8 count_stmts [function] [call site] 00153
8 JT [function] [call site] 00154
8 count_stmts [function] [call site] 00155
8 JF [function] [call site] 00156
8 slength [function] [call site] 00157
7 malloc [function] [call site] 00158
7 snprintf [function] [call site] 00159
7 memset [function] [call site] 00160
7 unMarkAll [function] [call site] 00161
7 convert_code_r [function] [call site] 00162
8 isMarked [function] [call site] 00163
8 Mark [function] [call site] 00164
8 convert_code_r [function] [call site] 00165
8 JF [function] [call site] 00166
8 convert_code_r [function] [call site] 00167
8 JT [function] [call site] 00168
8 slength [function] [call site] 00169
8 calloc [function] [call site] 00170
8 conv_error [function] [call site] 00171
8 printf [function] [call site] 00172
8 BPF_CLASS [function] [call site] 00173
8 free [function] [call site] 00174
8 conv_error [function] [call site] 00175
8 printf [function] [call site] 00176
8 free [function] [call site] 00177
8 conv_error [function] [call site] 00178
8 free [function] [call site] 00179
8 conv_error [function] [call site] 00180
8 free [function] [call site] 00181
8 conv_error [function] [call site] 00182
8 free [function] [call site] 00183
8 conv_error [function] [call site] 00184
8 free [function] [call site] 00185
8 conv_error [function] [call site] 00186
8 free [function] [call site] 00187
8 conv_error [function] [call site] 00188
8 free [function] [call site] 00189
8 JT [function] [call site] 00190
8 JT [function] [call site] 00191
8 JF [function] [call site] 00192
7 free [function] [call site] 00193
6 fprintf [function] [call site] 00194
6 unMarkAll [function] [call site] 00195
6 dot_dump_node [function] [call site] 00196
7 isMarked [function] [call site] 00197
7 Mark [function] [call site] 00198
7 slength [function] [call site] 00199
7 min [function] [call site] 00200
7 fprintf [function] [call site] 00201
7 fprintf [function] [call site] 00202
7 bpf_image [function] [call site] 00203
8 snprintf [function] [call site] 00204
8 snprintf [function] [call site] 00205
8 bpf_print_abs_load_operand [function] [call site] 00206
9 snprintf [function] [call site] 00207
9 snprintf [function] [call site] 00208
8 bpf_print_abs_load_operand [function] [call site] 00209
8 bpf_print_abs_load_operand [function] [call site] 00210
8 snprintf [function] [call site] 00211
8 snprintf [function] [call site] 00212
8 snprintf [function] [call site] 00213
8 snprintf [function] [call site] 00214
8 snprintf [function] [call site] 00215
8 snprintf [function] [call site] 00216
8 snprintf [function] [call site] 00217
8 snprintf [function] [call site] 00218
8 snprintf [function] [call site] 00219
8 snprintf [function] [call site] 00220
8 snprintf [function] [call site] 00221
8 snprintf [function] [call site] 00222
8 snprintf [function] [call site] 00223
8 snprintf [function] [call site] 00224
8 snprintf [function] [call site] 00225
8 snprintf [function] [call site] 00226
8 snprintf [function] [call site] 00227
8 snprintf [function] [call site] 00228
8 snprintf [function] [call site] 00229
8 snprintf [function] [call site] 00230
8 snprintf [function] [call site] 00231
8 snprintf [function] [call site] 00232
8 snprintf [function] [call site] 00233
8 snprintf [function] [call site] 00234
8 snprintf [function] [call site] 00235
8 BPF_CLASS [function] [call site] 00236
8 BPF_OP [function] [call site] 00237
8 snprintf [function] [call site] 00238
8 snprintf [function] [call site] 00239
8 snprintf [function] [call site] 00240
7 fprintf [function] [call site] 00241
7 fprintf [function] [call site] 00242
7 fprintf [function] [call site] 00243
7 fprintf [function] [call site] 00244
7 fprintf [function] [call site] 00245
7 JT [function] [call site] 00246
7 fprintf [function] [call site] 00247
7 fprintf [function] [call site] 00248
7 dot_dump_node [function] [call site] 00249
7 JT [function] [call site] 00250
7 dot_dump_node [function] [call site] 00251
7 JF [function] [call site] 00252
6 unMarkAll [function] [call site] 00253
6 dot_dump_edge [function] [call site] 00254
7 isMarked [function] [call site] 00255
7 Mark [function] [call site] 00256
7 JT [function] [call site] 00257
7 fprintf [function] [call site] 00258
7 JT [function] [call site] 00259
7 fprintf [function] [call site] 00260
7 JF [function] [call site] 00261
7 dot_dump_edge [function] [call site] 00262
7 JT [function] [call site] 00263
7 dot_dump_edge [function] [call site] 00264
7 JF [function] [call site] 00265
6 fprintf [function] [call site] 00266
6 free [function] [call site] 00267
5 plain_dump [function] [call site] 00268
6 memset [function] [call site] 00269
6 icode_to_fcode [function] [call site] 00270
6 bpf_dump [function] [call site] 00271
7 printf [function] [call site] 00272
7 printf [function] [call site] 00273
7 printf [function] [call site] 00274
7 printf [function] [call site] 00275
7 printf [function] [call site] 00276
7 puts [function] [call site] 00277
7 bpf_image [function] [call site] 00278
6 putchar [function] [call site] 00279
6 free [function] [call site] 00280
5 opt_error [function] [call site] 00281
4 find_levels [function] [call site] 00282
5 memset [function] [call site] 00283
5 unMarkAll [function] [call site] 00284
5 find_levels_r [function] [call site] 00285
6 isMarked [function] [call site] 00286
6 Mark [function] [call site] 00287
6 JT [function] [call site] 00288
6 find_levels_r [function] [call site] 00289
6 JT [function] [call site] 00290
6 find_levels_r [function] [call site] 00291
6 JF [function] [call site] 00292
6 max [function] [call site] 00293
6 JT [function] [call site] 00294
6 JF [function] [call site] 00295
4 find_dom [function] [call site] 00296
5 SET_INSERT [function] [call site] 00297
5 JT [function] [call site] 00298
5 SET_INTERSECT [function] [call site] 00299
5 JT [function] [call site] 00300
5 SET_INTERSECT [function] [call site] 00301
5 JF [function] [call site] 00302
4 find_closure [function] [call site] 00303
5 memset [function] [call site] 00304
5 SET_INSERT [function] [call site] 00305
5 JT [function] [call site] 00306
5 SET_UNION [function] [call site] 00307
5 JT [function] [call site] 00308
5 SET_UNION [function] [call site] 00309
5 JF [function] [call site] 00310
4 find_ud [function] [call site] 00311
5 compute_local_ud [function] [call site] 00312
6 atomuse [function] [call site] 00313
7 BPF_CLASS [function] [call site] 00314
7 BPF_RVAL [function] [call site] 00315
7 BPF_RVAL [function] [call site] 00316
7 BPF_MODE [function] [call site] 00317
7 BPF_MODE [function] [call site] 00318
7 BPF_SRC [function] [call site] 00319
7 BPF_MISCOP [function] [call site] 00320
7 abort [function] [call site] 00321
6 ATOMELEM [function] [call site] 00322
6 ATOMMASK [function] [call site] 00323
6 ATOMELEM [function] [call site] 00324
6 ATOMMASK [function] [call site] 00325
6 ATOMELEM [function] [call site] 00326
6 ATOMMASK [function] [call site] 00327
6 abort [function] [call site] 00328
6 atomdef [function] [call site] 00329
7 BPF_CLASS [function] [call site] 00330
7 BPF_MISCOP [function] [call site] 00331
6 ATOMELEM [function] [call site] 00332
6 ATOMMASK [function] [call site] 00333
6 ATOMMASK [function] [call site] 00334
6 BPF_CLASS [function] [call site] 00335
6 atomuse [function] [call site] 00336
6 ATOMELEM [function] [call site] 00337
6 ATOMMASK [function] [call site] 00338
6 ATOMELEM [function] [call site] 00339
6 ATOMMASK [function] [call site] 00340
6 ATOMELEM [function] [call site] 00341
6 ATOMMASK [function] [call site] 00342
6 abort [function] [call site] 00343
5 JT [function] [call site] 00344
5 JF [function] [call site] 00345
4 find_edom [function] [call site] 00346
5 memset [function] [call site] 00347
5 memset [function] [call site] 00348
5 propedom [function] [call site] 00349
6 SET_INSERT [function] [call site] 00350
6 SET_INTERSECT [function] [call site] 00351
6 SET_INTERSECT [function] [call site] 00352
5 propedom [function] [call site] 00353
4 opt_blks [function] [call site] 00354
5 init_val [function] [call site] 00355
6 memset [function] [call site] 00356
6 memset [function] [call site] 00357
5 find_inedges [function] [call site] 00358
6 link_inedge [function] [call site] 00359
6 JT [function] [call site] 00360
6 link_inedge [function] [call site] 00361
6 JF [function] [call site] 00362
5 opt_blk [function] [call site] 00363
6 BPF_CLASS [function] [call site] 00364
6 memset [function] [call site] 00365
6 memcpy [function] [call site] 00366
6 opt_stmt [function] [call site] 00367
7 F [function] [call site] 00368
8 BPF_MODE [function] [call site] 00369
8 BPF_CLASS [function] [call site] 00370
8 BPF_CLASS [function] [call site] 00371
7 vstore [function] [call site] 00372
7 BPF_SIZE [function] [call site] 00373
7 F [function] [call site] 00374
7 F [function] [call site] 00375
7 vstore [function] [call site] 00376
7 F [function] [call site] 00377
7 vstore [function] [call site] 00378
7 K [function] [call site] 00379
7 vstore [function] [call site] 00380
7 K [function] [call site] 00381
7 vstore [function] [call site] 00382
7 F [function] [call site] 00383
7 vstore [function] [call site] 00384
7 K [function] [call site] 00385
7 F [function] [call site] 00386
7 BPF_OP [function] [call site] 00387
7 K [function] [call site] 00388
7 opt_error [function] [call site] 00389
7 opt_error [function] [call site] 00390
7 fold_op [function] [call site] 00391
8 BPF_OP [function] [call site] 00392
8 opt_error [function] [call site] 00393
8 opt_error [function] [call site] 00394
8 abort [function] [call site] 00395
7 K [function] [call site] 00396
7 K [function] [call site] 00397
7 F [function] [call site] 00398
7 K [function] [call site] 00399
7 BPF_OP [function] [call site] 00400
7 fold_op [function] [call site] 00401
7 K [function] [call site] 00402
7 opt_error [function] [call site] 00403
7 F [function] [call site] 00404
7 K [function] [call site] 00405
7 vstore [function] [call site] 00406
7 vstore [function] [call site] 00407
7 K [function] [call site] 00408
7 F [function] [call site] 00409
7 vstore [function] [call site] 00410
7 vstore [function] [call site] 00411
7 vstore [function] [call site] 00412
7 vstore [function] [call site] 00413
7 vstore [function] [call site] 00414
7 vstore [function] [call site] 00415
6 BPF_CLASS [function] [call site] 00416
6 opt_peep [function] [call site] 00417
7 this_op [function] [call site] 00418
7 this_op [function] [call site] 00419
7 ATOMELEM [function] [call site] 00420
7 this_op [function] [call site] 00421
7 this_op [function] [call site] 00422
7 this_op [function] [call site] 00423
7 BPF_CLASS [function] [call site] 00424
7 BPF_MODE [function] [call site] 00425
7 ATOMELEM [function] [call site] 00426
7 opt_not [function] [call site] 00427
8 JT [function] [call site] 00428
8 JT [function] [call site] 00429
8 JF [function] [call site] 00430
8 JF [function] [call site] 00431
7 JT [function] [call site] 00432
7 JF [function] [call site] 00433
7 JF [function] [call site] 00434
7 JT [function] [call site] 00435
7 BPF_SRC [function] [call site] 00436
7 BPF_SRC [function] [call site] 00437
7 BPF_OP [function] [call site] 00438
7 abort [function] [call site] 00439
7 JF [function] [call site] 00440
7 JT [function] [call site] 00441
7 JF [function] [call site] 00442
7 JT [function] [call site] 00443
7 JT [function] [call site] 00444
7 JF [function] [call site] 00445
6 opt_deadstores [function] [call site] 00446
7 memset [function] [call site] 00447
7 deadstmt [function] [call site] 00448
8 atomuse [function] [call site] 00449
8 atomdef [function] [call site] 00450
7 deadstmt [function] [call site] 00451
7 ATOMELEM [function] [call site] 00452
7 vstore [function] [call site] 00453
6 BPF_SRC [function] [call site] 00454
6 K [function] [call site] 00455
5 opt_j [function] [call site] 00456
6 JT [function] [call site] 00457
6 JT [function] [call site] 00458
6 JF [function] [call site] 00459
6 use_conflict [function] [call site] 00460
7 ATOMELEM [function] [call site] 00461
6 JT [function] [call site] 00462
6 JT [function] [call site] 00463
6 lowest_set_bit [function] [call site] 00464
6 fold_edge [function] [call site] 00465
7 JT [function] [call site] 00466
7 JF [function] [call site] 00467
7 JF [function] [call site] 00468
6 use_conflict [function] [call site] 00469
6 JT [function] [call site] 00470
5 opt_j [function] [call site] 00471
5 find_inedges [function] [call site] 00472
5 or_pullup [function] [call site] 00473
6 JT [function] [call site] 00474
6 JT [function] [call site] 00475
6 JF [function] [call site] 00476
6 JT [function] [call site] 00477
6 JT [function] [call site] 00478
6 SET_MEMBER [function] [call site] 00479
6 JF [function] [call site] 00480
6 JF [function] [call site] 00481
6 JT [function] [call site] 00482
6 JT [function] [call site] 00483
6 SET_MEMBER [function] [call site] 00484
6 JF [function] [call site] 00485
6 JF [function] [call site] 00486
6 JF [function] [call site] 00487
6 JT [function] [call site] 00488
6 JT [function] [call site] 00489
6 JF [function] [call site] 00490
6 find_dom [function] [call site] 00491
5 and_pullup [function] [call site] 00492
6 JT [function] [call site] 00493
6 JT [function] [call site] 00494
6 JF [function] [call site] 00495
6 JF [function] [call site] 00496
6 JF [function] [call site] 00497
6 SET_MEMBER [function] [call site] 00498
6 JT [function] [call site] 00499
6 JT [function] [call site] 00500
6 JF [function] [call site] 00501
6 JF [function] [call site] 00502
6 SET_MEMBER [function] [call site] 00503
6 JT [function] [call site] 00504
6 JT [function] [call site] 00505
6 JT [function] [call site] 00506
6 JT [function] [call site] 00507
6 JT [function] [call site] 00508
6 JF [function] [call site] 00509
6 find_dom [function] [call site] 00510
4 printf [function] [call site] 00511
4 opt_dump [function] [call site] 00512
3 opt_loop [function] [call site] 00513
3 intern_blocks [function] [call site] 00514
4 mark_code [function] [call site] 00515
5 make_marks [function] [call site] 00516
6 isMarked [function] [call site] 00517
6 Mark [function] [call site] 00518
6 BPF_CLASS [function] [call site] 00519
6 make_marks [function] [call site] 00520
6 JT [function] [call site] 00521
6 make_marks [function] [call site] 00522
6 JF [function] [call site] 00523
4 isMarked [function] [call site] 00524
4 isMarked [function] [call site] 00525
4 eq_blk [function] [call site] 00526
5 eq_slist [function] [call site] 00527
4 JT [function] [call site] 00528
4 JT [function] [call site] 00529
4 JT [function] [call site] 00530
4 JT [function] [call site] 00531
4 JF [function] [call site] 00532
4 JF [function] [call site] 00533
4 JF [function] [call site] 00534
3 printf [function] [call site] 00535
3 opt_dump [function] [call site] 00536
3 opt_root [function] [call site] 00537
4 BPF_CLASS [function] [call site] 00538
4 JT [function] [call site] 00539
4 JF [function] [call site] 00540
4 JT [function] [call site] 00541
4 sappend [function] [call site] 00542
4 BPF_CLASS [function] [call site] 00543
3 printf [function] [call site] 00544
3 opt_dump [function] [call site] 00545
3 opt_cleanup [function] [call site] 00546
2 snprintf [function] [call site] 00547
2 icode_to_fcode [function] [call site] 00548
2 pcap__delete_buffer [function] [call site] 00549
2 pcap_lex_destroy [function] [call site] 00550
2 freechunks [function] [call site] 00551
3 free [function] [call site] 00552
2 WSACleanup [function] [call site] 00553
1 pcap_setfilter [function] [call site] 00554
2 pcap_t*::setfilter_op [function] [call site] 00555
1 pcap_perror [function] [call site] 00556
2 fprintf [function] [call site] 00557
1 pcap_close [function] [call site] 00558
2 pcap_t*::cleanup_op [function] [call site] 00559
2 free [function] [call site] 00560
2 free [function] [call site] 00561
1 pcap_freecode [function] [call site] 00562
2 free [function] [call site] 00563
1 pcap_close [function] [call site] 00564
1 free [function] [call site] 00565