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
123 6 blkid_new_probe_from_filename call site: 00006 sysfs_devno_is_dm_private
113 249 blkid_probe_is_wholedisk call site: 00249 blkid_probe_get_wholedisk_devno
56 192 blkid_probe_set_device call site: 00192 blkid_probe_is_wholedisk
24 364 get_hint call site: 00364 blkid_probe_set_hint
5 181 blkid_probe_reset_hints call site: 00181 ul_debug
5 389 list_add_tail call site: 00389 ul_debug
5 405 blkid_probe_set_device call site: 00405 blkid_free_probe
3 146 list_del call site: 00146 ul_debug
3 153 blkid_probe_set_wiper call site: 00153 ul_debug
3 161 remove_buffer call site: 00161 ul_debug
3 187 blkid_free_probe call site: 00187 ul_debug
3 395 blkid_probe_set_device call site: 00395 blkid_get_io_size

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 stat [call site] 00006
3 sysfs_devno_is_dm_private [function] [call site] 00007
4 ul_new_sysfs_path [function] [call site] 00008
5 ul_new_path [function] [call site] 00009
6 calloc [call site] 00010
6 getpid [call site] 00011
6 fprintf [call site] 00012
6 ul_debugobj [function] [call site] 00013
7 fprintf [call site] 00014
7 vfprintf [call site] 00015
7 fputc [call site] 00016
6 vasprintf [call site] 00017
6 ul_unref_path [function] [call site] 00018
7 getpid [call site] 00019
7 fprintf [call site] 00020
7 ul_debugobj [function] [call site] 00021
7 ul_path_close_dirfd [function] [call site] 00022
8 __assert_fail [call site] 00023
8 getpid [call site] 00024
8 fprintf [call site] 00025
8 ul_debugobj [function] [call site] 00026
8 close [call site] 00027
5 ul_path_set_prefix [function] [call site] 00028
6 __assert_fail [call site] 00029
6 strdup [call site] 00030
6 getpid [call site] 00031
6 fprintf [call site] 00032
6 ul_debugobj [function] [call site] 00033
5 sysfs_blkdev_init_path [function] [call site] 00034
6 gnu_dev_major [call site] 00035
6 gnu_dev_minor [call site] 00036
6 snprintf [call site] 00037
6 ul_path_set_dir [function] [call site] 00038
7 strdup [call site] 00039
7 close [call site] 00040
7 getpid [call site] 00041
7 fprintf [call site] 00042
7 ul_debugobj [function] [call site] 00043
6 ul_path_get_dirfd [function] [call site] 00044
7 __assert_fail [call site] 00045
7 __assert_fail [call site] 00046
7 get_absdir [function] [call site] 00047
8 snprintf [call site] 00048
8 __errno_location [call site] 00049
7 __errno_location [call site] 00050
7 getpid [call site] 00051
7 fprintf [call site] 00052
7 ul_debugobj [function] [call site] 00053
7 open [call site] 00054
6 ul_path_get_dialect [function] [call site] 00055
6 getpid [call site] 00056
6 fprintf [call site] 00057
6 ul_debugobj [function] [call site] 00058
6 calloc [call site] 00059
6 ul_path_set_dialect [function] [call site] 00060
7 getpid [call site] 00061
7 fprintf [call site] 00062
7 ul_debugobj [function] [call site] 00063
6 sysfs_blkdev_deinit_path [function] [call site] 00064
7 getpid [call site] 00065
7 fprintf [call site] 00066
7 ul_debugobj [function] [call site] 00067
7 ul_path_get_dialect [function] [call site] 00068
7 ul_unref_path [function] [call site] 00069
7 ul_path_set_dialect [function] [call site] 00070
6 ul_path_set_enoent_redirect [function] [call site] 00071
6 sysfs_blkdev_enoent_redirect [function] [call site] 00072
7 ul_path_get_dialect [function] [call site] 00073
7 ul_path_get_dirfd [function] [call site] 00074
7 getpid [call site] 00075
7 fprintf [call site] 00076
7 ul_debugobj [function] [call site] 00077
6 getpid [call site] 00078
6 fprintf [call site] 00079
6 ul_debugobj [function] [call site] 00080
6 sysfs_blkdev_set_parent [function] [call site] 00081
7 ul_path_get_dialect [function] [call site] 00082
7 ul_unref_path [function] [call site] 00083
7 ul_ref_path [function] [call site] 00084
7 getpid [call site] 00085
7 fprintf [call site] 00086
7 ul_debugobj [function] [call site] 00087
5 ul_unref_path [function] [call site] 00088
5 getpid [call site] 00089
5 fprintf [call site] 00090
5 ul_debugobj [function] [call site] 00091
4 ul_path_read_string [function] [call site] 00092
5 ul_path_read_buffer [function] [call site] 00093
6 ul_path_read [function] [call site] 00094
7 ul_path_open [function] [call site] 00095
8 open [call site] 00096
8 getpid [call site] 00097
8 fprintf [call site] 00098
8 ul_debug [function] [call site] 00099
9 vfprintf [call site] 00100
9 fputc [call site] 00101
8 ul_path_get_dirfd [function] [call site] 00102
8 openat [call site] 00103
8 __errno_location [call site] 00104
8 openat [call site] 00105
8 getpid [call site] 00106
8 fprintf [call site] 00107
8 ul_debugobj [function] [call site] 00108
7 __errno_location [call site] 00109
7 getpid [call site] 00110
7 fprintf [call site] 00111
7 ul_debug [function] [call site] 00112
7 read_all [function] [call site] 00113
8 read [call site] 00114
8 __errno_location [call site] 00115
8 xusleep [function] [call site] 00116
9 nanosleep [call site] 00117
7 __errno_location [call site] 00118
7 close [call site] 00119
7 __errno_location [call site] 00120
5 strdup [call site] 00121
4 strncmp [call site] 00122
4 strrchr [call site] 00123
4 strncmp [call site] 00124
4 ul_unref_path [function] [call site] 00125
3 getpid [call site] 00126
3 fprintf [call site] 00127
3 ul_debug [function] [call site] 00128
3 __errno_location [call site] 00129
3 open [call site] 00130
3 blkid_new_probe [function] [call site] 00131
4 calloc [call site] 00132
4 getpid [call site] 00133
4 fprintf [call site] 00134
4 ul_debug [function] [call site] 00135
3 blkid_probe_set_device [function] [call site] 00136
4 blkid_reset_probe [function] [call site] 00137
5 blkid_probe_reset_values [function] [call site] 00138
6 list_empty [function] [call site] 00139
6 getpid [call site] 00140
6 fprintf [call site] 00141
6 ul_debug [function] [call site] 00142
6 list_empty [function] [call site] 00143
6 blkid_probe_free_value [function] [call site] 00144
7 list_del [function] [call site] 00145
8 __list_del [function] [call site] 00146
7 getpid [call site] 00147
7 fprintf [call site] 00148
7 ul_debug [function] [call site] 00149
5 blkid_probe_set_wiper [function] [call site] 00150
6 getpid [call site] 00151
6 fprintf [call site] 00152
6 ul_debug [function] [call site] 00153
6 getpid [call site] 00154
6 fprintf [call site] 00155
6 ul_debug [function] [call site] 00156
5 blkid_probe_chain_reset_position [function] [call site] 00157
4 blkid_probe_reset_buffers [function] [call site] 00158
5 blkid_probe_prune_buffers [function] [call site] 00159
6 remove_buffer [function] [call site] 00160
7 list_del [function] [call site] 00161
7 getpid [call site] 00162
7 fprintf [call site] 00163
7 ul_debug [function] [call site] 00164
7 munmap [call site] 00165
5 list_empty [function] [call site] 00166
5 getpid [call site] 00167
5 fprintf [call site] 00168
5 ul_debug [function] [call site] 00169
5 list_empty [function] [call site] 00170
5 remove_buffer [function] [call site] 00171
5 getpid [call site] 00172
5 fprintf [call site] 00173
5 ul_debug [function] [call site] 00174
4 close [call site] 00175
4 blkid_free_probe [function] [call site] 00176
5 close [call site] 00177
5 blkid_probe_reset_buffers [function] [call site] 00178
5 blkid_probe_reset_values [function] [call site] 00179
5 blkid_probe_reset_hints [function] [call site] 00180
6 list_empty [function] [call site] 00181
6 getpid [call site] 00182
6 fprintf [call site] 00183
6 ul_debug [function] [call site] 00184
6 list_empty [function] [call site] 00185
6 list_del [function] [call site] 00186
5 blkid_free_probe [function] [call site] 00187
6 getpid [call site] 00188
6 fprintf [call site] 00189
6 ul_debug [function] [call site] 00190
4 posix_fadvise [call site] 00191
4 fstat [call site] 00192
4 __errno_location [call site] 00193
4 blkdev_get_size [function] [call site] 00194
5 ioctl [call site] 00195
5 ioctl [call site] 00196
5 ioctl [call site] 00197
5 fstat [call site] 00198
5 __errno_location [call site] 00199
5 blkdev_find_size [function] [call site] 00200
6 blkdev_valid_offset [function] [call site] 00201
7 lseek [call site] 00202
7 read_all [function] [call site] 00203
6 __errno_location [call site] 00204
6 blkdev_valid_offset [function] [call site] 00205
6 blkdev_valid_offset [function] [call site] 00206
4 getpid [call site] 00207
4 fprintf [call site] 00208
4 ul_debug [function] [call site] 00209
4 sysfs_chrdev_devno_to_devname [function] [call site] 00210
5 gnu_dev_major [call site] 00211
5 gnu_dev_minor [call site] 00212
5 ul_new_path [function] [call site] 00213
5 ul_path_readlink [function] [call site] 00214
6 get_absdir [function] [call site] 00215
6 __errno_location [call site] 00216
6 readlink [call site] 00217
6 ul_path_get_dirfd [function] [call site] 00218
6 readlinkat [call site] 00219
5 ul_unref_path [function] [call site] 00220
5 strrchr [call site] 00221
5 strlen [call site] 00222
5 sysfs_devname_sys_to_dev [function] [call site] 00223
6 strchr [call site] 00224
4 strncmp [call site] 00225
4 getpid [call site] 00226
4 fprintf [call site] 00227
4 ul_debug [function] [call site] 00228
4 __errno_location [call site] 00229
4 getpid [call site] 00230
4 fprintf [call site] 00231
4 ul_debug [function] [call site] 00232
4 __errno_location [call site] 00233
4 ioctl [call site] 00234
4 fcntl [call site] 00235
4 ul_reopen [function] [call site] 00236
5 snprintf [call site] 00237
5 readlink [call site] 00238
5 __errno_location [call site] 00239
5 __assert_fail [call site] 00240
5 open [call site] 00241
4 __errno_location [call site] 00242
4 sysfs_devno_is_dm_private [function] [call site] 00243
4 getpid [call site] 00244
4 fprintf [call site] 00245
4 ul_debug [function] [call site] 00246
4 blkid_probe_is_tiny [function] [call site] 00247
4 blkid_probe_is_wholedisk [function] [call site] 00248
5 blkid_probe_get_devno [function] [call site] 00249
5 blkid_probe_get_wholedisk_devno [function] [call site] 00250
6 blkid_probe_get_devno [function] [call site] 00251
6 blkid_devno_to_wholedisk [function] [call site] 00252
7 sysfs_devno_to_wholedisk [function] [call site] 00253
8 ul_new_sysfs_path [function] [call site] 00254
8 sysfs_blkdev_get_wholedisk [function] [call site] 00255
9 ul_path_access [function] [call site] 00256
10 access [call site] 00257
10 getpid [call site] 00258
10 fprintf [call site] 00259
10 ul_debug [function] [call site] 00260
10 ul_path_get_dirfd [function] [call site] 00261
10 faccessat [call site] 00262
10 __errno_location [call site] 00263
10 faccessat [call site] 00264
10 getpid [call site] 00265
10 fprintf [call site] 00266
10 ul_debugobj [function] [call site] 00267
9 ul_path_read_string [function] [call site] 00268
9 strsep [call site] 00269
9 c_strncasecmp [function] [call site] 00270
10 c_tolower [function] [call site] 00271
10 c_tolower [function] [call site] 00272
9 get_dm_wholedisk [function] [call site] 00273
10 sysfs_blkdev_get_slave [function] [call site] 00274
11 ul_path_opendir [function] [call site] 00275
12 ul_path_open [function] [call site] 00276
12 getpid [call site] 00277
12 fprintf [call site] 00278
12 ul_debugobj [function] [call site] 00279
12 ul_path_get_dirfd [function] [call site] 00280
12 dup_fd_cloexec [function] [call site] 00281
13 fcntl [call site] 00282
13 dup [call site] 00283
13 fcntl [call site] 00284
13 fcntl [call site] 00285
13 __errno_location [call site] 00286
13 close [call site] 00287
13 __errno_location [call site] 00288
12 fdopendir [call site] 00289
12 close [call site] 00290
12 rewinddir [call site] 00291
11 xreaddir [function] [call site] 00292
12 readdir [call site] 00293
12 strcmp [call site] 00294
12 strcmp [call site] 00295
11 strdup [call site] 00296
11 closedir [call site] 00297
11 closedir [call site] 00298
10 xstrncpy [function] [call site] 00299
11 strlen [call site] 00300
10 ul_path_get_prefix [function] [call site] 00301
10 __sysfs_devname_to_devno [function] [call site] 00302
11 __assert_fail [call site] 00303
11 strncmp [call site] 00304
11 stat [call site] 00305
11 strdup [call site] 00306
11 sysfs_devname_dev_to_sys [function] [call site] 00307
12 strchr [call site] 00308
11 strdup [call site] 00309
11 strncmp [call site] 00310
11 sysfs_devname_dev_to_sys [function] [call site] 00311
11 snprintf [call site] 00312
11 read_devno [function] [call site] 00313
12 fopen [call site] 00314
12 __isoc99_fscanf [call site] 00315
12 gnu_dev_makedev [call site] 00316
12 fclose [call site] 00317
11 snprintf [call site] 00318
11 read_devno [function] [call site] 00319
11 ul_startswith [function] [call site] 00320
12 strlen [call site] 00321
12 strncmp [call site] 00322
11 snprintf [call site] 00323
11 read_devno [function] [call site] 00324
11 snprintf [call site] 00325
11 read_devno [function] [call site] 00326
9 sysfs_blkdev_get_name [function] [call site] 00327
10 ul_path_readlink [function] [call site] 00328
10 strrchr [call site] 00329
10 strlen [call site] 00330
10 sysfs_devname_sys_to_dev [function] [call site] 00331
9 sysfs_blkdev_get_devno [function] [call site] 00332
10 ul_path_get_dialect [function] [call site] 00333
9 ul_path_readlink [function] [call site] 00334
9 stripoff_last_component [function] [call site] 00335
10 strrchr [call site] 00336
9 stripoff_last_component [function] [call site] 00337
9 sysfs_devname_sys_to_dev [function] [call site] 00338
9 xstrncpy [function] [call site] 00339
9 ul_path_get_prefix [function] [call site] 00340
9 __sysfs_devname_to_devno [function] [call site] 00341
8 ul_unref_path [function] [call site] 00342
4 ioctl [call site] 00343
4 ioctl [call site] 00344
4 __errno_location [call site] 00345
4 ioctl [call site] 00346
4 __errno_location [call site] 00347
4 cdrom_size_correction [function] [call site] 00348
5 is_sector_readable [function] [call site] 00349
6 lseek [call site] 00350
6 read [call site] 00351
6 getpid [call site] 00352
6 fprintf [call site] 00353
6 ul_debug [function] [call site] 00354
6 __errno_location [call site] 00355
5 getpid [call site] 00356
5 fprintf [call site] 00357
5 ul_debug [function] [call site] 00358
5 getpid [call site] 00359
5 fprintf [call site] 00360
5 ul_debug [function] [call site] 00361
4 blkid_probe_get_hint [function] [call site] 00362
5 get_hint [function] [call site] 00363
6 list_empty [function] [call site] 00364
6 strcmp [call site] 00365
4 ioctl [call site] 00366
4 blkid_probe_set_hint [function] [call site] 00367
5 strchr [call site] 00368
5 blkid_parse_tag_string [function] [call site] 00369
6 getpid [call site] 00370
6 fprintf [call site] 00371
6 ul_debug [function] [call site] 00372
6 strchr [call site] 00373
6 strdup [call site] 00374
6 strrchr [call site] 00375
6 strdup [call site] 00376
6 getpid [call site] 00377
6 fprintf [call site] 00378
6 ul_debug [function] [call site] 00379
5 __errno_location [call site] 00380
5 strtoumax [call site] 00381
5 __errno_location [call site] 00382
5 get_hint [function] [call site] 00383
5 getpid [call site] 00384
5 fprintf [call site] 00385
5 ul_debug [function] [call site] 00386
5 strdup [call site] 00387
5 list_add_tail [function] [call site] 00388
6 __list_add [function] [call site] 00389
5 getpid [call site] 00390
5 fprintf [call site] 00391
5 ul_debug [function] [call site] 00392
5 __errno_location [call site] 00393
4 ioctl [call site] 00394
4 blkid_probe_is_tiny [function] [call site] 00395
4 blkid_get_io_size [function] [call site] 00396
5 ioctl [call site] 00397
5 is_power_of_2 [function] [call site] 00398
4 getpid [call site] 00399
4 fprintf [call site] 00400
4 ul_debug [function] [call site] 00401
4 getpid [call site] 00402
4 fprintf [call site] 00403
4 blkid_probe_is_wholedisk [function] [call site] 00404
4 ul_debug [function] [call site] 00405
4 getpid [call site] 00406
4 fprintf [call site] 00407
4 ul_debug [function] [call site] 00408
3 close [call site] 00409
3 blkid_free_probe [function] [call site] 00410
2 blkid_probe_enable_partitions [function] [call site] 00411
2 blkid_probe_set_partitions_flags [function] [call site] 00412
2 blkid_probe_enable_superblocks [function] [call site] 00413
2 blkid_probe_set_superblocks_flags [function] [call site] 00414
2 blkid_do_safeprobe [function] [call site] 00415
3 blkid_probe_start [function] [call site] 00416
4 getpid [call site] 00417
4 fprintf [call site] 00418
4 ul_debug [function] [call site] 00419
4 blkid_probe_set_wiper [function] [call site] 00420
3 getpid [call site] 00421
3 fprintf [call site] 00422
3 ul_debug [function] [call site] 00423
3 blkid_probe_chain_reset_position [function] [call site] 00424
3 blkid_probe_chain_reset_position [function] [call site] 00425
3 blkid_probe_end [function] [call site] 00426
4 getpid [call site] 00427
4 fprintf [call site] 00428
4 ul_debug [function] [call site] 00429
4 blkid_probe_set_wiper [function] [call site] 00430
2 blkid_free_probe [function] [call site] 00431
1 close [call site] 00432
1 unlink [call site] 00433