Fuzz introspector: test_blkid_fuzz
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
427 0 EP call site: 00000 process_file

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 mkostemp [call site] 00001
1 err [call site] 00002
1 write [call site] 00003
1 process_file [function] [call site] 00004
2 blkid_new_probe_from_filename [function] [call site] 00005
3 open [call site] 00006
3 blkid_new_probe [function] [call site] 00007
4 calloc [call site] 00008
4 getpid [call site] 00009
4 fprintf [call site] 00010
4 ul_debug [function] [call site] 00011
5 vfprintf [call site] 00012
5 fputc [call site] 00013
3 blkid_probe_set_device [function] [call site] 00014
4 blkid_reset_probe [function] [call site] 00015
5 blkid_probe_reset_values [function] [call site] 00016
6 list_empty [function] [call site] 00017
6 getpid [call site] 00018
6 fprintf [call site] 00019
6 ul_debug [function] [call site] 00020
6 list_empty [function] [call site] 00021
6 blkid_probe_free_value [function] [call site] 00022
7 list_del [function] [call site] 00023
8 __list_del [function] [call site] 00024
7 getpid [call site] 00025
7 fprintf [call site] 00026
7 ul_debug [function] [call site] 00027
5 blkid_probe_set_wiper [function] [call site] 00028
6 getpid [call site] 00029
6 fprintf [call site] 00030
6 ul_debug [function] [call site] 00031
6 getpid [call site] 00032
6 fprintf [call site] 00033
6 ul_debug [function] [call site] 00034
5 blkid_probe_chain_reset_position [function] [call site] 00035
4 blkid_probe_reset_buffers [function] [call site] 00036
5 blkid_probe_prune_buffers [function] [call site] 00037
6 remove_buffer [function] [call site] 00038
7 list_del [function] [call site] 00039
7 getpid [call site] 00040
7 fprintf [call site] 00041
7 ul_debug [function] [call site] 00042
7 munmap [call site] 00043
5 list_empty [function] [call site] 00044
5 getpid [call site] 00045
5 fprintf [call site] 00046
5 ul_debug [function] [call site] 00047
5 list_empty [function] [call site] 00048
5 remove_buffer [function] [call site] 00049
5 getpid [call site] 00050
5 fprintf [call site] 00051
5 ul_debug [function] [call site] 00052
4 close [call site] 00053
4 blkid_free_probe [function] [call site] 00054
5 close [call site] 00055
5 blkid_probe_reset_buffers [function] [call site] 00056
5 blkid_probe_reset_values [function] [call site] 00057
5 blkid_probe_reset_hints [function] [call site] 00058
6 list_empty [function] [call site] 00059
6 getpid [call site] 00060
6 fprintf [call site] 00061
6 ul_debug [function] [call site] 00062
6 list_empty [function] [call site] 00063
6 list_del [function] [call site] 00064
5 blkid_free_probe [function] [call site] 00065
6 getpid [call site] 00066
6 fprintf [call site] 00067
6 ul_debug [function] [call site] 00068
4 posix_fadvise [call site] 00069
4 fstat [call site] 00070
4 __errno_location [call site] 00071
4 blkdev_get_size [function] [call site] 00072
5 ioctl [call site] 00073
5 ioctl [call site] 00074
5 ioctl [call site] 00075
5 fstat [call site] 00076
5 __errno_location [call site] 00077
5 blkdev_find_size [function] [call site] 00078
6 blkdev_valid_offset [function] [call site] 00079
7 lseek [call site] 00080
7 read_all [function] [call site] 00081
8 read [call site] 00082
8 __errno_location [call site] 00083
8 xusleep [function] [call site] 00084
9 nanosleep [call site] 00085
6 __errno_location [call site] 00086
6 blkdev_valid_offset [function] [call site] 00087
6 blkdev_valid_offset [function] [call site] 00088
4 getpid [call site] 00089
4 fprintf [call site] 00090
4 ul_debug [function] [call site] 00091
4 sysfs_chrdev_devno_to_devname [function] [call site] 00092
5 gnu_dev_major [call site] 00093
5 gnu_dev_minor [call site] 00094
5 ul_new_path [function] [call site] 00095
6 calloc [call site] 00096
6 getpid [call site] 00097
6 fprintf [call site] 00098
6 ul_debugobj [function] [call site] 00099
7 fprintf [call site] 00100
7 vfprintf [call site] 00101
7 fputc [call site] 00102
6 vasprintf [call site] 00103
6 ul_unref_path [function] [call site] 00104
7 getpid [call site] 00105
7 fprintf [call site] 00106
7 ul_debugobj [function] [call site] 00107
7 ul_path_close_dirfd [function] [call site] 00108
8 __assert_fail [call site] 00109
8 getpid [call site] 00110
8 fprintf [call site] 00111
8 ul_debugobj [function] [call site] 00112
8 close [call site] 00113
5 ul_path_readlink [function] [call site] 00114
6 get_absdir [function] [call site] 00115
7 snprintf [call site] 00116
7 __errno_location [call site] 00117
6 __errno_location [call site] 00118
6 readlink [call site] 00119
6 ul_path_get_dirfd [function] [call site] 00120
7 __assert_fail [call site] 00121
7 __assert_fail [call site] 00122
7 get_absdir [function] [call site] 00123
7 __errno_location [call site] 00124
7 getpid [call site] 00125
7 fprintf [call site] 00126
7 ul_debugobj [function] [call site] 00127
7 open [call site] 00128
6 readlinkat [call site] 00129
5 ul_unref_path [function] [call site] 00130
5 strrchr [call site] 00131
5 strlen [call site] 00132
5 sysfs_devname_sys_to_dev [function] [call site] 00133
6 strchr [call site] 00134
4 strncmp [call site] 00135
4 getpid [call site] 00136
4 fprintf [call site] 00137
4 ul_debug [function] [call site] 00138
4 __errno_location [call site] 00139
4 getpid [call site] 00140
4 fprintf [call site] 00141
4 ul_debug [function] [call site] 00142
4 __errno_location [call site] 00143
4 ioctl [call site] 00144
4 fcntl [call site] 00145
4 ul_reopen [function] [call site] 00146
5 snprintf [call site] 00147
5 readlink [call site] 00148
5 __errno_location [call site] 00149
5 __assert_fail [call site] 00150
5 open [call site] 00151
4 __errno_location [call site] 00152
4 sysfs_devno_is_dm_private [function] [call site] 00153
5 ul_new_sysfs_path [function] [call site] 00154
6 ul_new_path [function] [call site] 00155
6 ul_path_set_prefix [function] [call site] 00156
7 __assert_fail [call site] 00157
7 strdup [call site] 00158
7 getpid [call site] 00159
7 fprintf [call site] 00160
7 ul_debugobj [function] [call site] 00161
6 sysfs_blkdev_init_path [function] [call site] 00162
7 gnu_dev_major [call site] 00163
7 gnu_dev_minor [call site] 00164
7 snprintf [call site] 00165
7 ul_path_set_dir [function] [call site] 00166
8 strdup [call site] 00167
8 close [call site] 00168
8 getpid [call site] 00169
8 fprintf [call site] 00170
8 ul_debugobj [function] [call site] 00171
7 ul_path_get_dirfd [function] [call site] 00172
7 ul_path_get_dialect [function] [call site] 00173
7 getpid [call site] 00174
7 fprintf [call site] 00175
7 ul_debugobj [function] [call site] 00176
7 calloc [call site] 00177
7 ul_path_set_dialect [function] [call site] 00178
8 getpid [call site] 00179
8 fprintf [call site] 00180
8 ul_debugobj [function] [call site] 00181
7 sysfs_blkdev_deinit_path [function] [call site] 00182
8 getpid [call site] 00183
8 fprintf [call site] 00184
8 ul_debugobj [function] [call site] 00185
8 ul_path_get_dialect [function] [call site] 00186
8 ul_unref_path [function] [call site] 00187
8 ul_path_set_dialect [function] [call site] 00188
7 ul_path_set_enoent_redirect [function] [call site] 00189
7 sysfs_blkdev_enoent_redirect [function] [call site] 00190
8 ul_path_get_dialect [function] [call site] 00191
8 ul_path_get_dirfd [function] [call site] 00192
8 getpid [call site] 00193
8 fprintf [call site] 00194
8 ul_debugobj [function] [call site] 00195
7 getpid [call site] 00196
7 fprintf [call site] 00197
7 ul_debugobj [function] [call site] 00198
7 sysfs_blkdev_set_parent [function] [call site] 00199
8 ul_path_get_dialect [function] [call site] 00200
8 ul_unref_path [function] [call site] 00201
8 ul_ref_path [function] [call site] 00202
8 getpid [call site] 00203
8 fprintf [call site] 00204
8 ul_debugobj [function] [call site] 00205
6 ul_unref_path [function] [call site] 00206
6 getpid [call site] 00207
6 fprintf [call site] 00208
6 ul_debugobj [function] [call site] 00209
5 ul_path_read_string [function] [call site] 00210
6 ul_path_read_buffer [function] [call site] 00211
7 ul_path_read [function] [call site] 00212
8 ul_path_open [function] [call site] 00213
9 open [call site] 00214
9 getpid [call site] 00215
9 fprintf [call site] 00216
9 ul_debug [function] [call site] 00217
9 ul_path_get_dirfd [function] [call site] 00218
9 openat [call site] 00219
9 __errno_location [call site] 00220
9 openat [call site] 00221
9 getpid [call site] 00222
9 fprintf [call site] 00223
9 ul_debugobj [function] [call site] 00224
8 __errno_location [call site] 00225
8 getpid [call site] 00226
8 fprintf [call site] 00227
8 ul_debug [function] [call site] 00228
8 read_all [function] [call site] 00229
8 __errno_location [call site] 00230
8 close [call site] 00231
8 __errno_location [call site] 00232
6 strdup [call site] 00233
5 strncmp [call site] 00234
5 strrchr [call site] 00235
5 strncmp [call site] 00236
5 ul_unref_path [function] [call site] 00237
4 getpid [call site] 00238
4 fprintf [call site] 00239
4 ul_debug [function] [call site] 00240
4 blkid_probe_is_tiny [function] [call site] 00241
4 blkid_probe_is_wholedisk [function] [call site] 00242
5 blkid_probe_get_devno [function] [call site] 00243
5 blkid_probe_get_wholedisk_devno [function] [call site] 00244
6 blkid_probe_get_devno [function] [call site] 00245
6 blkid_devno_to_wholedisk [function] [call site] 00246
7 sysfs_devno_to_wholedisk [function] [call site] 00247
8 ul_new_sysfs_path [function] [call site] 00248
8 sysfs_blkdev_get_wholedisk [function] [call site] 00249
9 ul_path_access [function] [call site] 00250
10 access [call site] 00251
10 getpid [call site] 00252
10 fprintf [call site] 00253
10 ul_debug [function] [call site] 00254
10 ul_path_get_dirfd [function] [call site] 00255
10 faccessat [call site] 00256
10 __errno_location [call site] 00257
10 faccessat [call site] 00258
10 getpid [call site] 00259
10 fprintf [call site] 00260
10 ul_debugobj [function] [call site] 00261
9 ul_path_read_string [function] [call site] 00262
9 strsep [call site] 00263
9 c_strncasecmp [function] [call site] 00264
10 c_tolower [function] [call site] 00265
10 c_tolower [function] [call site] 00266
9 get_dm_wholedisk [function] [call site] 00267
10 sysfs_blkdev_get_slave [function] [call site] 00268
11 ul_path_opendir [function] [call site] 00269
12 ul_path_open [function] [call site] 00270
12 getpid [call site] 00271
12 fprintf [call site] 00272
12 ul_debugobj [function] [call site] 00273
12 ul_path_get_dirfd [function] [call site] 00274
12 dup_fd_cloexec [function] [call site] 00275
13 fcntl [call site] 00276
13 dup [call site] 00277
13 fcntl [call site] 00278
13 fcntl [call site] 00279
13 __errno_location [call site] 00280
13 close [call site] 00281
13 __errno_location [call site] 00282
12 fdopendir [call site] 00283
12 close [call site] 00284
12 rewinddir [call site] 00285
11 xreaddir [function] [call site] 00286
12 readdir [call site] 00287
12 strcmp [call site] 00288
12 strcmp [call site] 00289
11 strdup [call site] 00290
11 closedir [call site] 00291
11 closedir [call site] 00292
10 xstrncpy [function] [call site] 00293
11 strlen [call site] 00294
10 ul_path_get_prefix [function] [call site] 00295
10 __sysfs_devname_to_devno [function] [call site] 00296
11 __assert_fail [call site] 00297
11 strncmp [call site] 00298
11 stat [call site] 00299
11 strdup [call site] 00300
11 sysfs_devname_dev_to_sys [function] [call site] 00301
12 strchr [call site] 00302
11 strdup [call site] 00303
11 strncmp [call site] 00304
11 sysfs_devname_dev_to_sys [function] [call site] 00305
11 snprintf [call site] 00306
11 read_devno [function] [call site] 00307
12 fopen [call site] 00308
12 __isoc99_fscanf [call site] 00309
12 gnu_dev_makedev [call site] 00310
12 fclose [call site] 00311
11 snprintf [call site] 00312
11 read_devno [function] [call site] 00313
11 ul_startswith [function] [call site] 00314
12 strlen [call site] 00315
12 strncmp [call site] 00316
11 snprintf [call site] 00317
11 read_devno [function] [call site] 00318
11 snprintf [call site] 00319
11 read_devno [function] [call site] 00320
9 sysfs_blkdev_get_name [function] [call site] 00321
10 ul_path_readlink [function] [call site] 00322
10 strrchr [call site] 00323
10 strlen [call site] 00324
10 sysfs_devname_sys_to_dev [function] [call site] 00325
9 sysfs_blkdev_get_devno [function] [call site] 00326
10 ul_path_get_dialect [function] [call site] 00327
9 ul_path_readlink [function] [call site] 00328
9 stripoff_last_component [function] [call site] 00329
10 strrchr [call site] 00330
9 stripoff_last_component [function] [call site] 00331
9 sysfs_devname_sys_to_dev [function] [call site] 00332
9 xstrncpy [function] [call site] 00333
9 ul_path_get_prefix [function] [call site] 00334
9 __sysfs_devname_to_devno [function] [call site] 00335
8 ul_unref_path [function] [call site] 00336
4 ioctl [call site] 00337
4 ioctl [call site] 00338
4 __errno_location [call site] 00339
4 ioctl [call site] 00340
4 __errno_location [call site] 00341
4 cdrom_size_correction [function] [call site] 00342
5 is_sector_readable [function] [call site] 00343
6 lseek [call site] 00344
6 read [call site] 00345
6 getpid [call site] 00346
6 fprintf [call site] 00347
6 ul_debug [function] [call site] 00348
6 __errno_location [call site] 00349
5 getpid [call site] 00350
5 fprintf [call site] 00351
5 ul_debug [function] [call site] 00352
5 getpid [call site] 00353
5 fprintf [call site] 00354
5 ul_debug [function] [call site] 00355
4 blkid_probe_get_hint [function] [call site] 00356
5 get_hint [function] [call site] 00357
6 list_empty [function] [call site] 00358
6 strcmp [call site] 00359
4 ioctl [call site] 00360
4 blkid_probe_set_hint [function] [call site] 00361
5 strchr [call site] 00362
5 blkid_parse_tag_string [function] [call site] 00363
6 getpid [call site] 00364
6 fprintf [call site] 00365
6 ul_debug [function] [call site] 00366
6 strchr [call site] 00367
6 strdup [call site] 00368
6 strrchr [call site] 00369
6 strdup [call site] 00370
6 getpid [call site] 00371
6 fprintf [call site] 00372
6 ul_debug [function] [call site] 00373
5 __errno_location [call site] 00374
5 strtoumax [call site] 00375
5 __errno_location [call site] 00376
5 get_hint [function] [call site] 00377
5 getpid [call site] 00378
5 fprintf [call site] 00379
5 ul_debug [function] [call site] 00380
5 strdup [call site] 00381
5 list_add_tail [function] [call site] 00382
6 __list_add [function] [call site] 00383
5 getpid [call site] 00384
5 fprintf [call site] 00385
5 ul_debug [function] [call site] 00386
5 __errno_location [call site] 00387
4 ioctl [call site] 00388
4 blkid_probe_is_tiny [function] [call site] 00389
4 blkid_get_io_size [function] [call site] 00390
5 ioctl [call site] 00391
5 is_power_of_2 [function] [call site] 00392
4 getpid [call site] 00393
4 fprintf [call site] 00394
4 ul_debug [function] [call site] 00395
4 getpid [call site] 00396
4 fprintf [call site] 00397
4 blkid_probe_is_wholedisk [function] [call site] 00398
4 ul_debug [function] [call site] 00399
4 getpid [call site] 00400
4 fprintf [call site] 00401
4 ul_debug [function] [call site] 00402
3 close [call site] 00403
3 blkid_free_probe [function] [call site] 00404
2 blkid_probe_enable_partitions [function] [call site] 00405
2 blkid_probe_set_partitions_flags [function] [call site] 00406
2 blkid_probe_enable_superblocks [function] [call site] 00407
2 blkid_probe_set_superblocks_flags [function] [call site] 00408
2 blkid_do_safeprobe [function] [call site] 00409
3 blkid_probe_start [function] [call site] 00410
4 getpid [call site] 00411
4 fprintf [call site] 00412
4 ul_debug [function] [call site] 00413
4 blkid_probe_set_wiper [function] [call site] 00414
3 getpid [call site] 00415
3 fprintf [call site] 00416
3 ul_debug [function] [call site] 00417
3 blkid_probe_chain_reset_position [function] [call site] 00418
3 blkid_probe_chain_reset_position [function] [call site] 00419
3 blkid_probe_end [function] [call site] 00420
4 getpid [call site] 00421
4 fprintf [call site] 00422
4 ul_debug [function] [call site] 00423
4 blkid_probe_set_wiper [function] [call site] 00424
2 blkid_free_probe [function] [call site] 00425
1 close [call site] 00426
1 unlink [call site] 00427