Fuzz introspector: magic_fuzzer_loaddb
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
32 455 apprentice_map call site: 00455 check_buffer
15 97 apprentice_load call site: 00097 load_1
10 58 file_apprentice call site: 00058 get_default_magic
10 492 add_mlist call site: 00492 apprentice_list
6 415 apprentice_magic_strength_1 call site: 00415 fprintf
5 400 set_test_type call site: 00400 fprintf
4 72 file_apprentice call site: 00072 file_oomem
4 79 mlist_free_one call site: 00079 file_regfree
3 9 fuzzer_get_tmpfile(unsigned char const*, unsigned long) call site: 00009 perror
3 13 fuzzer_get_tmpfile(unsigned char const*, unsigned long) call site: 00013 close
3 42 file_checkfmt call site: 00042 file_error
3 49 file_vprintf call site: 00049 file_error

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 FuzzerTemporaryFile::FuzzerTemporaryFile(unsigned char const*, unsigned long) [function] [call site] 00001
2 fuzzer_get_tmpfile(unsigned char const*, unsigned long) [function] [call site] 00002
3 strdup [call site] 00003
3 perror [call site] 00004
3 abort [call site] 00005
3 mkstemp [call site] 00006
3 perror [call site] 00007
3 abort [call site] 00008
3 fdopen [call site] 00009
3 perror [call site] 00010
3 close [call site] 00011
3 abort [call site] 00012
3 fwrite [call site] 00013
3 close [call site] 00014
3 fprintf [call site] 00015
3 abort [call site] 00016
3 fclose [call site] 00017
1 magic_open [function] [call site] 00018
2 file_ms_alloc [function] [call site] 00019
3 calloc [call site] 00020
3 magic_setflags [function] [call site] 00021
3 __errno_location [call site] 00022
3 newlocale [call site] 00023
3 __assert_fail [call site] 00024
1 FuzzerTemporaryFile::filename() const [function] [call site] 00025
1 magic_check [function] [call site] 00026
2 file_apprentice [function] [call site] 00027
3 file_reset [function] [call site] 00028
4 file_error [function] [call site] 00029
5 file_error_core [function] [call site] 00030
6 file_clearbuf [function] [call site] 00031
6 file_printf [function] [call site] 00032
7 file_vprintf [function] [call site] 00033
8 file_checkfmt [function] [call site] 00034
9 snprintf [call site] 00035
9 strchr [call site] 00036
9 snprintf [call site] 00037
9 file_checkfield [function] [call site] 00038
10 __ctype_b_loc [call site] 00039
10 snprintf [call site] 00040
9 file_checkfield [function] [call site] 00041
9 __ctype_b_loc [call site] 00042
9 snprintf [call site] 00043
8 file_clearbuf [function] [call site] 00044
8 file_error [function] [call site] 00045
8 vasprintf [call site] 00046
8 file_clearbuf [function] [call site] 00047
8 file_error [function] [call site] 00048
8 asprintf [call site] 00049
8 file_clearbuf [function] [call site] 00050
8 __errno_location [call site] 00051
8 file_error [function] [call site] 00052
6 file_printf [function] [call site] 00053
6 file_vprintf [function] [call site] 00054
6 strerror [call site] 00055
6 file_printf [function] [call site] 00056
4 file_clearbuf [function] [call site] 00057
3 magic_getpath [function] [call site] 00058
4 getenv [call site] 00059
4 get_default_magic [function] [call site] 00060
5 getenv [call site] 00061
5 asprintf [call site] 00062
5 stat [call site] 00063
5 asprintf [call site] 00064
5 stat [call site] 00065
5 asprintf [call site] 00066
5 access [call site] 00067
5 asprintf [call site] 00068
3 init_file_tables [function] [call site] 00069
4 __assert_fail [call site] 00070
4 __assert_fail [call site] 00071
3 strdup [call site] 00072
3 strlen [call site] 00073
3 file_oomem [function] [call site] 00074
4 __errno_location [call site] 00075
4 file_error [function] [call site] 00076
3 mlist_free [function] [call site] 00077
4 mlist_free_one [function] [call site] 00078
5 apprentice_unmap [function] [call site] 00079
6 munmap [call site] 00080
6 fprintf [call site] 00081
6 abort [call site] 00082
5 file_regfree [function] [call site] 00083
6 regfree [call site] 00084
4 mlist_free_one [function] [call site] 00085
3 mlist_alloc [function] [call site] 00086
4 calloc [call site] 00087
3 file_oomem [function] [call site] 00088
3 mlist_free [function] [call site] 00089
3 strchr [call site] 00090
3 apprentice_1 [function] [call site] 00091
4 file_error [function] [call site] 00092
4 apprentice_load [function] [call site] 00093
5 calloc [call site] 00094
5 file_oomem [function] [call site] 00095
5 fprintf [call site] 00096
5 stat [call site] 00097
5 opendir [call site] 00098
5 readdir [call site] 00099
5 asprintf [call site] 00100
5 strlen [call site] 00101
5 file_oomem [function] [call site] 00102
5 closedir [call site] 00103
5 stat [call site] 00104
5 realloc [call site] 00105
5 file_oomem [function] [call site] 00106
5 closedir [call site] 00107
5 closedir [call site] 00108
5 qsort [call site] 00109
5 cmpstrp [function] [call site] 00110
6 strcmp [call site] 00111
5 load_1 [function] [call site] 00112
6 fopen [call site] 00113
6 __errno_location [call site] 00114
6 __errno_location [call site] 00115
6 file_error [function] [call site] 00116
6 getline [call site] 00117
6 memcmp [call site] 00118
6 file_error [function] [call site] 00119
6 file_error [function] [call site] 00120
6 parse [function] [call site] 00121
7 file_check_mem [function] [call site] 00122
8 realloc [call site] 00123
8 file_oomem [function] [call site] 00124
7 file_magerror [function] [call site] 00125
8 file_error_core [function] [call site] 00126
7 file_magerror [function] [call site] 00127
7 file_magwarn [function] [call site] 00128
8 fprintf [call site] 00129
8 fprintf [call site] 00130
8 fprintf [call site] 00131
8 file_vmagwarn [function] [call site] 00132
9 fflush [call site] 00133
9 fprintf [call site] 00134
9 vfprintf [call site] 00135
9 fputc [call site] 00136
7 realloc [call site] 00137
7 file_oomem [function] [call site] 00138
7 file_oomem [function] [call site] 00139
7 file_magwarn [function] [call site] 00140
7 strtol [call site] 00141
7 file_magwarn [function] [call site] 00142
7 file_magwarn [function] [call site] 00143
7 get_op [function] [call site] 00144
7 __ctype_b_loc [call site] 00145
7 strtol [call site] 00146
7 file_magwarn [function] [call site] 00147
7 file_magwarn [function] [call site] 00148
7 __ctype_b_loc [call site] 00149
7 get_cond [function] [call site] 00150
8 strncmp [call site] 00151
8 __ctype_b_loc [call site] 00152
7 check_cond [function] [call site] 00153
8 file_magwarn [function] [call site] 00154
8 file_magwarn [function] [call site] 00155
8 file_magwarn [function] [call site] 00156
7 __ctype_b_loc [call site] 00157
7 get_type [function] [call site] 00158
8 strncmp [call site] 00159
7 get_standard_integer_type [function] [call site] 00160
8 __ctype_b_loc [call site] 00161
8 __ctype_b_loc [call site] 00162
8 __ctype_b_loc [call site] 00163
7 get_type [function] [call site] 00164
7 get_standard_integer_type [function] [call site] 00165
7 __ctype_b_loc [call site] 00166
7 get_type [function] [call site] 00167
7 file_magwarn [function] [call site] 00168
7 file_magwarn [function] [call site] 00169
7 file_magwarn [function] [call site] 00170
7 get_op [function] [call site] 00171
7 file_magwarn [function] [call site] 00172
7 parse_indirect_modifier [function] [call site] 00173
8 __ctype_b_loc [call site] 00174
8 file_magwarn [function] [call site] 00175
7 parse_string_modifier [function] [call site] 00176
8 __ctype_b_loc [call site] 00177
8 file_magwarn [function] [call site] 00178
8 strtoul [call site] 00179
8 file_magwarn [function] [call site] 00180
8 file_magwarn [function] [call site] 00181
8 __ctype_b_loc [call site] 00182
8 string_modifier_check [function] [call site] 00183
9 file_magwarn [function] [call site] 00184
9 file_magwarn [function] [call site] 00185
9 file_magwarn [function] [call site] 00186
9 file_magwarn [function] [call site] 00187
9 file_magwarn [function] [call site] 00188
9 file_magwarn [function] [call site] 00189
9 file_magwarn [function] [call site] 00190
7 parse_op_modifier [function] [call site] 00191
8 strtoull [call site] 00192
8 file_signextend [function] [call site] 00193
9 file_magwarn [function] [call site] 00194
8 eatsize [function] [call site] 00195
9 __ctype_b_loc [call site] 00196
9 tolower [call site] 00197
9 __ctype_b_loc [call site] 00198
9 tolower [call site] 00199
7 __ctype_b_loc [call site] 00200
7 file_magwarn [function] [call site] 00201
7 __ctype_b_loc [call site] 00202
7 file_magwarn [function] [call site] 00203
7 getvalue [function] [call site] 00204
8 getstr [function] [call site] 00205
9 __ctype_b_loc [call site] 00206
9 file_error [function] [call site] 00207
9 file_magwarn [function] [call site] 00208
9 file_magwarn [function] [call site] 00209
9 file_magwarn [function] [call site] 00210
9 __ctype_b_loc [call site] 00211
9 strchr [call site] 00212
9 strchr [call site] 00213
9 file_magwarn [function] [call site] 00214
9 file_magwarn [function] [call site] 00215
9 hextoint [function] [call site] 00216
10 __ctype_b_loc [call site] 00217
9 hextoint [function] [call site] 00218
9 file_pstring_length_size [function] [call site] 00219
10 file_error [function] [call site] 00220
8 file_magwarn [function] [call site] 00221
8 file_regcomp [function] [call site] 00222
9 check_regex [function] [call site] 00223
10 strchr [call site] 00224
10 strlen [call site] 00225
10 file_printable [function] [call site] 00226
11 __ctype_b_loc [call site] 00227
10 file_magwarn [function] [call site] 00228
10 file_magwarn [function] [call site] 00229
10 __errno_location [call site] 00230
10 strtoul [call site] 00231
10 strtoul [call site] 00232
10 __ctype_b_loc [call site] 00233
10 strlen [call site] 00234
10 file_printable [function] [call site] 00235
10 file_magwarn [function] [call site] 00236
10 file_magwarn [function] [call site] 00237
9 uselocale [call site] 00238
9 __assert_fail [call site] 00239
9 regcomp [call site] 00240
9 uselocale [call site] 00241
9 regerror [call site] 00242
9 file_printable [function] [call site] 00243
9 file_magerror [function] [call site] 00244
8 file_regfree [function] [call site] 00245
8 __errno_location [call site] 00246
8 strtof [call site] 00247
8 __errno_location [call site] 00248
8 __errno_location [call site] 00249
8 strtod [call site] 00250
8 __errno_location [call site] 00251
8 file_parse_guid [function] [call site] 00252
9 getxvalue [function] [call site] 00253
10 atox [function] [call site] 00254
11 __ctype_b_loc [call site] 00255
11 tolower [call site] 00256
11 __ctype_b_loc [call site] 00257
11 tolower [call site] 00258
11 strchr [call site] 00259
9 getxvalue [function] [call site] 00260
9 getxvalue [function] [call site] 00261
9 getxvalue [function] [call site] 00262
9 getxvalue [function] [call site] 00263
9 getxvalue [function] [call site] 00264
9 getxvalue [function] [call site] 00265
9 getxvalue [function] [call site] 00266
9 getxvalue [function] [call site] 00267
9 getxvalue [function] [call site] 00268
9 getxvalue [function] [call site] 00269
8 file_magwarn [function] [call site] 00270
8 __errno_location [call site] 00271
8 strtoull [call site] 00272
8 file_signextend [function] [call site] 00273
8 file_magwarn [function] [call site] 00274
8 typesize [function] [call site] 00275
8 file_magwarn [function] [call site] 00276
8 __ctype_b_loc [call site] 00277
8 fprintf [call site] 00278
8 abort [call site] 00279
8 file_magwarn [function] [call site] 00280
8 __errno_location [call site] 00281
8 eatsize [function] [call site] 00282
7 __ctype_b_loc [call site] 00283
7 strlcpy [function] [call site] 00284
7 file_magwarn [function] [call site] 00285
7 check_format [function] [call site] 00286
8 file_magwarn [function] [call site] 00287
8 file_magwarn [function] [call site] 00288
8 check_format_type [function] [call site] 00289
9 fprintf [call site] 00290
9 abort [call site] 00291
9 strchr [call site] 00292
9 __ctype_b_loc [call site] 00293
9 __ctype_b_loc [call site] 00294
9 __ctype_b_loc [call site] 00295
9 __ctype_b_loc [call site] 00296
9 __ctype_b_loc [call site] 00297
9 __ctype_b_loc [call site] 00298
9 fprintf [call site] 00299
9 abort [call site] 00300
8 file_magwarn [function] [call site] 00301
8 file_magwarn [function] [call site] 00302
7 file_mdump [function] [call site] 00303
8 fprintf [call site] 00304
8 fprintf [call site] 00305
8 fputc [call site] 00306
8 fprintf [call site] 00307
8 fprintf [call site] 00308
8 fputc [call site] 00309
8 fputc [call site] 00310
8 fputc [call site] 00311
8 fputc [call site] 00312
8 fputc [call site] 00313
8 fputc [call site] 00314
8 fputc [call site] 00315
8 fputc [call site] 00316
8 fputc [call site] 00317
8 fputc [call site] 00318
8 fputc [call site] 00319
8 fputc [call site] 00320
8 fputc [call site] 00321
8 fputc [call site] 00322
8 fputc [call site] 00323
8 fprintf [call site] 00324
8 fputc [call site] 00325
8 fputc [call site] 00326
8 fprintf [call site] 00327
8 fprintf [call site] 00328
8 fprintf [call site] 00329
8 fprintf [call site] 00330
8 file_showstr [function] [call site] 00331
9 fputc [call site] 00332
9 fputc [call site] 00333
9 fputc [call site] 00334
9 fputc [call site] 00335
9 fputc [call site] 00336
9 fputc [call site] 00337
9 fputc [call site] 00338
9 fputc [call site] 00339
9 fputc [call site] 00340
9 fprintf [call site] 00341
8 file_fmtdatetime [function] [call site] 00342
9 cdf_timestamp_to_timespec [function] [call site] 00343
10 cdf_getdays [function] [call site] 00344
10 cdf_getday [function] [call site] 00345
10 cdf_getmonth [function] [call site] 00346
10 mktime [call site] 00347
10 __errno_location [call site] 00348
9 tzset [call site] 00349
9 localtime_r [call site] 00350
9 gmtime_r [call site] 00351
9 asctime_r [call site] 00352
9 strcspn [call site] 00353
9 strlcpy [function] [call site] 00354
8 fprintf [call site] 00355
8 file_fmtdatetime [function] [call site] 00356
8 fprintf [call site] 00357
8 file_fmtdatetime [function] [call site] 00358
8 fprintf [call site] 00359
8 file_fmtdatetime [function] [call site] 00360
8 fprintf [call site] 00361
8 file_fmtdatetime [function] [call site] 00362
8 fprintf [call site] 00363
8 fprintf [call site] 00364
8 fprintf [call site] 00365
8 file_fmtvarint [function] [call site] 00366
9 file_varint2uintmax_t [function] [call site] 00367
9 snprintf [call site] 00368
8 fprintf [call site] 00369
8 file_fmtdate [function] [call site] 00370
9 strftime [call site] 00371
9 strlcpy [function] [call site] 00372
8 fprintf [call site] 00373
8 file_fmttime [function] [call site] 00374
9 strftime [call site] 00375
9 strlcpy [function] [call site] 00376
8 fprintf [call site] 00377
8 file_fmtnum [function] [call site] 00378
9 __errno_location [call site] 00379
9 strtoull [call site] 00380
9 __errno_location [call site] 00381
9 strlcpy [function] [call site] 00382
9 snprintf [call site] 00383
8 fprintf [call site] 00384
8 fprintf [call site] 00385
8 file_print_guid [function] [call site] 00386
9 snprintf [call site] 00387
8 fprintf [call site] 00388
8 fprintf [call site] 00389
8 fprintf [call site] 00390
6 addentry [function] [call site] 00391
7 realloc [call site] 00392
7 file_oomem [function] [call site] 00393
7 __assert_fail [call site] 00394
6 addentry [function] [call site] 00395
6 fclose [call site] 00396
5 load_1 [function] [call site] 00397
5 set_text_binary [function] [call site] 00398
6 set_test_type [function] [call site] 00399
7 file_looks_utf8 [function] [call site] 00400
6 fprintf [call site] 00401
6 strstr [call site] 00402
6 __ctype_b_loc [call site] 00403
6 __ctype_b_loc [call site] 00404
6 fprintf [call site] 00405
5 qsort [call site] 00406
5 apprentice_sort [function] [call site] 00407
6 file_magic_strength [function] [call site] 00408
7 apprentice_magic_strength_1 [function] [call site] 00409
8 file_magwarn1 [function] [call site] 00410
9 file_vmagwarn [function] [call site] 00411
8 typesize [function] [call site] 00412
8 fprintf [call site] 00413
8 abort [call site] 00414
8 nonmagic [function] [call site] 00415
8 fprintf [call site] 00416
8 abort [call site] 00417
8 fprintf [call site] 00418
8 abort [call site] 00419
7 fprintf [call site] 00420
7 abort [call site] 00421
6 file_magic_strength [function] [call site] 00422
6 memcmp [call site] 00423
6 file_magwarn1 [function] [call site] 00424
6 file_mdump [function] [call site] 00425
6 file_mdump [function] [call site] 00426
5 set_last_default [function] [call site] 00427
6 file_magwarn [function] [call site] 00428
5 coalesce_entries [function] [call site] 00429
6 file_oomem [function] [call site] 00430
5 magic_entry_free [function] [call site] 00431
5 apprentice_unmap [function] [call site] 00432
4 apprentice_compile [function] [call site] 00433
5 mkdbname [function] [call site] 00434
6 strrchr [call site] 00435
6 asprintf [call site] 00436
6 access [call site] 00437
6 asprintf [call site] 00438
6 strstr [call site] 00439
5 open [call site] 00440
5 __errno_location [call site] 00441
5 file_error [function] [call site] 00442
5 write [call site] 00443
5 __errno_location [call site] 00444
5 file_error [function] [call site] 00445
5 write [call site] 00446
5 __errno_location [call site] 00447
5 file_error [function] [call site] 00448
5 close [call site] 00449
5 apprentice_unmap [function] [call site] 00450
4 apprentice_map [function] [call site] 00451
5 calloc [call site] 00452
5 file_oomem [function] [call site] 00453
5 mkdbname [function] [call site] 00454
5 open [call site] 00455
5 fstat [call site] 00456
5 __errno_location [call site] 00457
5 file_error [function] [call site] 00458
5 maxoff_t [function] [call site] 00459
5 file_error [function] [call site] 00460
5 mmap [call site] 00461
5 __errno_location [call site] 00462
5 file_error [function] [call site] 00463
5 close [call site] 00464
5 check_buffer [function] [call site] 00465
6 file_error [function] [call site] 00466
6 file_error [function] [call site] 00467
6 __bswap_32 [function] [call site] 00468
6 file_error [function] [call site] 00469
6 __bswap_32 [function] [call site] 00470
6 file_error [function] [call site] 00471
6 __bswap_32 [function] [call site] 00472
6 file_error [function] [call site] 00473
6 byteswap [function] [call site] 00474
7 bs1 [function] [call site] 00475
8 __bswap_16 [function] [call site] 00476
8 __bswap_32 [function] [call site] 00477
8 __bswap_32 [function] [call site] 00478
8 __bswap_32 [function] [call site] 00479
8 __bswap_32 [function] [call site] 00480
8 __bswap_32 [function] [call site] 00481
8 __bswap_64 [function] [call site] 00482
8 __bswap_64 [function] [call site] 00483
5 mprotect [call site] 00484
5 __errno_location [call site] 00485
5 file_error [function] [call site] 00486
5 close [call site] 00487
5 apprentice_unmap [function] [call site] 00488
4 file_magwarn [function] [call site] 00489
4 apprentice_load [function] [call site] 00490
4 add_mlist [function] [call site] 00491
5 calloc [call site] 00492
4 apprentice_unmap [function] [call site] 00493
4 mlist_free_all [function] [call site] 00494
5 mlist_free [function] [call site] 00495
4 file_oomem [function] [call site] 00496
4 printf [call site] 00497
4 apprentice_list [function] [call site] 00498
5 file_magic_strength [function] [call site] 00499
5 printf [call site] 00500
4 printf [call site] 00501
4 apprentice_list [function] [call site] 00502
3 mlist_free [function] [call site] 00503
3 file_error [function] [call site] 00504
3 file_error [function] [call site] 00505
1 FuzzerTemporaryFile::filename() const [function] [call site] 00506
1 magic_compile [function] [call site] 00507
2 file_apprentice [function] [call site] 00508
1 magic_close [function] [call site] 00509
2 file_ms_free [function] [call site] 00510
3 mlist_free [function] [call site] 00511
3 freelocale [call site] 00512
1 FuzzerTemporaryFile::~FuzzerTemporaryFile() [function] [call site] 00513
2 fuzzer_release_tmpfile(char*) [function] [call site] 00514
3 unlink [call site] 00515
3 perror [call site] 00516
2 __clang_call_terminate [call site] 00517
3 __cxa_begin_catch [call site] 00518