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
107 214 blkid_probe_is_wholedisk call site: 00214 blkid_probe_get_wholedisk_devno
102 6 blkid_new_probe_from_filename call site: 00006 sysfs_devno_is_dm_private
52 161 blkid_probe_set_device call site: 00161 blkid_probe_is_wholedisk
21 323 get_hint call site: 00323 blkid_probe_set_hint
4 152 blkid_probe_reset_hints call site: 00152 ul_debug_prefix
4 345 list_add_tail call site: 00345 ul_debug_prefix
4 358 blkid_probe_set_device call site: 00358 blkid_free_probe
3 350 blkid_probe_set_device call site: 00350 blkid_get_io_size
2 145 blkid_probe_reset_buffers call site: 00145 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_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 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 strncmp [call site] 00104
4 ul_unref_path [function] [call site] 00105
3 ul_debug_prefix [function] [call site] 00106
3 ul_debug [function] [call site] 00107
3 __errno_location [call site] 00108
3 open [call site] 00109
3 blkid_new_probe [function] [call site] 00110
4 calloc [call site] 00111
4 ul_debug_prefix [function] [call site] 00112
4 ul_debug [function] [call site] 00113
3 blkid_probe_set_device [function] [call site] 00114
4 blkid_reset_probe [function] [call site] 00115
5 blkid_probe_reset_values [function] [call site] 00116
6 list_empty [function] [call site] 00117
6 ul_debug_prefix [function] [call site] 00118
6 ul_debug [function] [call site] 00119
6 list_empty [function] [call site] 00120
6 blkid_probe_free_value [function] [call site] 00121
7 list_del [function] [call site] 00122
8 __list_del [function] [call site] 00123
7 ul_debug_prefix [function] [call site] 00124
7 ul_debug [function] [call site] 00125
5 blkid_probe_set_wiper [function] [call site] 00126
6 ul_debug_prefix [function] [call site] 00127
6 ul_debug [function] [call site] 00128
6 ul_debug_prefix [function] [call site] 00129
6 ul_debug [function] [call site] 00130
5 blkid_probe_chain_reset_position [function] [call site] 00131
4 blkid_probe_reset_buffers [function] [call site] 00132
5 blkid_probe_prune_buffers [function] [call site] 00133
6 remove_buffer [function] [call site] 00134
7 list_del [function] [call site] 00135
7 ul_debug_prefix [function] [call site] 00136
7 ul_debug [function] [call site] 00137
7 munmap [call site] 00138
5 list_empty [function] [call site] 00139
5 ul_debug_prefix [function] [call site] 00140
5 ul_debug [function] [call site] 00141
5 list_empty [function] [call site] 00142
5 remove_buffer [function] [call site] 00143
5 ul_debug_prefix [function] [call site] 00144
5 ul_debug [function] [call site] 00145
4 close [call site] 00146
4 blkid_free_probe [function] [call site] 00147
5 close [call site] 00148
5 blkid_probe_reset_buffers [function] [call site] 00149
5 blkid_probe_reset_values [function] [call site] 00150
5 blkid_probe_reset_hints [function] [call site] 00151
6 list_empty [function] [call site] 00152
6 ul_debug_prefix [function] [call site] 00153
6 ul_debug [function] [call site] 00154
6 list_empty [function] [call site] 00155
6 list_del [function] [call site] 00156
5 blkid_free_probe [function] [call site] 00157
6 ul_debug_prefix [function] [call site] 00158
6 ul_debug [function] [call site] 00159
4 posix_fadvise [call site] 00160
4 fstat [call site] 00161
4 __errno_location [call site] 00162
4 blkdev_get_size [function] [call site] 00163
5 ioctl [call site] 00164
5 ioctl [call site] 00165
5 ioctl [call site] 00166
5 fstat [call site] 00167
5 __errno_location [call site] 00168
5 blkdev_find_size [function] [call site] 00169
6 blkdev_valid_offset [function] [call site] 00170
7 lseek [call site] 00171
7 read_all [function] [call site] 00172
6 __errno_location [call site] 00173
6 blkdev_valid_offset [function] [call site] 00174
6 blkdev_valid_offset [function] [call site] 00175
4 ul_debug_prefix [function] [call site] 00176
4 ul_debug [function] [call site] 00177
4 sysfs_chrdev_devno_to_devname [function] [call site] 00178
5 gnu_dev_major [call site] 00179
5 gnu_dev_minor [call site] 00180
5 ul_new_path [function] [call site] 00181
5 ul_path_readlink [function] [call site] 00182
6 get_absdir [function] [call site] 00183
6 __errno_location [call site] 00184
6 readlink [call site] 00185
6 ul_path_get_dirfd [function] [call site] 00186
6 readlinkat [call site] 00187
5 ul_unref_path [function] [call site] 00188
5 strrchr [call site] 00189
5 strlen [call site] 00190
5 sysfs_devname_sys_to_dev [function] [call site] 00191
6 strchr [call site] 00192
4 strncmp [call site] 00193
4 ul_debug_prefix [function] [call site] 00194
4 ul_debug [function] [call site] 00195
4 __errno_location [call site] 00196
4 ul_debug_prefix [function] [call site] 00197
4 ul_debug [function] [call site] 00198
4 __errno_location [call site] 00199
4 ioctl [call site] 00200
4 fcntl [call site] 00201
4 ul_reopen [function] [call site] 00202
5 snprintf [call site] 00203
5 readlink [call site] 00204
5 __errno_location [call site] 00205
5 __assert_fail [call site] 00206
5 open [call site] 00207
4 __errno_location [call site] 00208
4 sysfs_devno_is_dm_private [function] [call site] 00209
4 ul_debug_prefix [function] [call site] 00210
4 ul_debug [function] [call site] 00211
4 blkid_probe_is_tiny [function] [call site] 00212
4 blkid_probe_is_wholedisk [function] [call site] 00213
5 blkid_probe_get_devno [function] [call site] 00214
5 blkid_probe_get_wholedisk_devno [function] [call site] 00215
6 blkid_probe_get_devno [function] [call site] 00216
6 blkid_devno_to_wholedisk [function] [call site] 00217
7 sysfs_devno_to_wholedisk [function] [call site] 00218
8 ul_new_sysfs_path [function] [call site] 00219
8 sysfs_blkdev_get_wholedisk [function] [call site] 00220
9 ul_path_access [function] [call site] 00221
10 access [call site] 00222
10 ul_debug_prefix [function] [call site] 00223
10 ul_debug [function] [call site] 00224
10 ul_path_get_dirfd [function] [call site] 00225
10 faccessat [call site] 00226
10 __errno_location [call site] 00227
10 faccessat [call site] 00228
10 ul_debug_prefix [function] [call site] 00229
10 ul_debug [function] [call site] 00230
9 ul_path_read_string [function] [call site] 00231
9 strsep [call site] 00232
9 c_strncasecmp [function] [call site] 00233
10 c_tolower [function] [call site] 00234
10 c_tolower [function] [call site] 00235
9 get_dm_wholedisk [function] [call site] 00236
10 sysfs_blkdev_get_slave [function] [call site] 00237
11 ul_path_opendir [function] [call site] 00238
12 ul_path_open [function] [call site] 00239
12 ul_debug_prefix [function] [call site] 00240
12 ul_debug [function] [call site] 00241
12 ul_path_get_dirfd [function] [call site] 00242
12 dup_fd_cloexec [function] [call site] 00243
13 fcntl [call site] 00244
13 dup [call site] 00245
13 fcntl [call site] 00246
13 fcntl [call site] 00247
13 __errno_location [call site] 00248
13 close [call site] 00249
13 __errno_location [call site] 00250
12 fdopendir [call site] 00251
12 close [call site] 00252
12 rewinddir [call site] 00253
11 xreaddir [function] [call site] 00254
12 readdir [call site] 00255
12 strcmp [call site] 00256
12 strcmp [call site] 00257
11 strdup [call site] 00258
11 closedir [call site] 00259
11 closedir [call site] 00260
10 xstrncpy [function] [call site] 00261
11 strlen [call site] 00262
10 ul_path_get_prefix [function] [call site] 00263
10 __sysfs_devname_to_devno [function] [call site] 00264
11 __assert_fail [call site] 00265
11 strncmp [call site] 00266
11 stat [call site] 00267
11 strdup [call site] 00268
11 sysfs_devname_dev_to_sys [function] [call site] 00269
12 strchr [call site] 00270
11 strdup [call site] 00271
11 strncmp [call site] 00272
11 sysfs_devname_dev_to_sys [function] [call site] 00273
11 snprintf [call site] 00274
11 read_devno [function] [call site] 00275
12 fopen [call site] 00276
12 __isoc99_fscanf [call site] 00277
12 gnu_dev_makedev [call site] 00278
12 fclose [call site] 00279
11 snprintf [call site] 00280
11 read_devno [function] [call site] 00281
11 ul_startswith [function] [call site] 00282
12 strlen [call site] 00283
12 strncmp [call site] 00284
11 snprintf [call site] 00285
11 read_devno [function] [call site] 00286
11 snprintf [call site] 00287
11 read_devno [function] [call site] 00288
9 sysfs_blkdev_get_name [function] [call site] 00289
10 ul_path_readlink [function] [call site] 00290
10 strrchr [call site] 00291
10 strlen [call site] 00292
10 sysfs_devname_sys_to_dev [function] [call site] 00293
9 sysfs_blkdev_get_devno [function] [call site] 00294
10 ul_path_get_dialect [function] [call site] 00295
9 ul_path_readlink [function] [call site] 00296
9 stripoff_last_component [function] [call site] 00297
10 strrchr [call site] 00298
9 stripoff_last_component [function] [call site] 00299
9 sysfs_devname_sys_to_dev [function] [call site] 00300
9 xstrncpy [function] [call site] 00301
9 ul_path_get_prefix [function] [call site] 00302
9 __sysfs_devname_to_devno [function] [call site] 00303
8 ul_unref_path [function] [call site] 00304
4 ioctl [call site] 00305
4 ioctl [call site] 00306
4 __errno_location [call site] 00307
4 ioctl [call site] 00308
4 __errno_location [call site] 00309
4 cdrom_size_correction [function] [call site] 00310
5 is_sector_readable [function] [call site] 00311
6 lseek [call site] 00312
6 read [call site] 00313
6 ul_debug_prefix [function] [call site] 00314
6 ul_debug [function] [call site] 00315
6 __errno_location [call site] 00316
5 ul_debug_prefix [function] [call site] 00317
5 ul_debug [function] [call site] 00318
5 ul_debug_prefix [function] [call site] 00319
5 ul_debug [function] [call site] 00320
4 blkid_probe_get_hint [function] [call site] 00321
5 get_hint [function] [call site] 00322
6 list_empty [function] [call site] 00323
6 strcmp [call site] 00324
4 ioctl [call site] 00325
4 blkid_probe_set_hint [function] [call site] 00326
5 strchr [call site] 00327
5 blkid_parse_tag_string [function] [call site] 00328
6 ul_debug_prefix [function] [call site] 00329
6 ul_debug [function] [call site] 00330
6 strchr [call site] 00331
6 strdup [call site] 00332
6 strrchr [call site] 00333
6 strdup [call site] 00334
6 ul_debug_prefix [function] [call site] 00335
6 ul_debug [function] [call site] 00336
5 __errno_location [call site] 00337
5 strtoumax [call site] 00338
5 __errno_location [call site] 00339
5 get_hint [function] [call site] 00340
5 ul_debug_prefix [function] [call site] 00341
5 ul_debug [function] [call site] 00342
5 strdup [call site] 00343
5 list_add_tail [function] [call site] 00344
6 __list_add [function] [call site] 00345
5 ul_debug_prefix [function] [call site] 00346
5 ul_debug [function] [call site] 00347
5 __errno_location [call site] 00348
4 ioctl [call site] 00349
4 blkid_probe_is_tiny [function] [call site] 00350
4 blkid_get_io_size [function] [call site] 00351
5 ioctl [call site] 00352
5 is_power_of_2 [function] [call site] 00353
4 ul_debug_prefix [function] [call site] 00354
4 ul_debug [function] [call site] 00355
4 ul_debug_prefix [function] [call site] 00356
4 blkid_probe_is_wholedisk [function] [call site] 00357
4 ul_debug [function] [call site] 00358
4 ul_debug_prefix [function] [call site] 00359
4 ul_debug [function] [call site] 00360
3 close [call site] 00361
3 blkid_free_probe [function] [call site] 00362
2 blkid_probe_enable_partitions [function] [call site] 00363
2 blkid_probe_set_partitions_flags [function] [call site] 00364
2 blkid_probe_enable_superblocks [function] [call site] 00365
2 blkid_probe_set_superblocks_flags [function] [call site] 00366
2 blkid_do_safeprobe [function] [call site] 00367
3 blkid_probe_start [function] [call site] 00368
4 ul_debug_prefix [function] [call site] 00369
4 ul_debug [function] [call site] 00370
4 blkid_probe_set_wiper [function] [call site] 00371
3 ul_debug_prefix [function] [call site] 00372
3 ul_debug [function] [call site] 00373
3 blkid_probe_chain_reset_position [function] [call site] 00374
3 blkid_probe_chain_reset_position [function] [call site] 00375
3 blkid_probe_end [function] [call site] 00376
4 ul_debug_prefix [function] [call site] 00377
4 ul_debug [function] [call site] 00378
4 blkid_probe_set_wiper [function] [call site] 00379
2 blkid_free_probe [function] [call site] 00380
1 close [call site] 00381
1 unlink [call site] 00382