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
107 219 blkid_probe_is_wholedisk call site: 00219 blkid_probe_get_wholedisk_devno
101 6 blkid_new_probe_from_filename call site: 00006 sysfs_devno_is_dm_hidden
58 160 blkid_probe_set_device call site: 00160 blkid_probe_is_wholedisk
21 328 get_hint call site: 00328 blkid_probe_set_hint
4 151 blkid_probe_reset_hints call site: 00151 ul_debug_prefix
4 350 list_add_tail call site: 00350 ul_debug_prefix
4 363 blkid_probe_set_device call site: 00363 blkid_free_probe
3 355 blkid_probe_set_device call site: 00355 blkid_get_io_size
2 144 blkid_probe_reset_buffers call site: 00144 blkid_free_probe
1 1 LLVMFuzzerTestOneInput call site: 00001 err

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