Fuzz introspector: glib/fuzzing/fuzz_utf8_validate.c
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
60 18 g_vasprintf call site: {node_id} g_pattern_match_simple
30 207 g_error_allocate call site: {node_id} g_warning
17 99 g_strdup_printf call site: {node_id} g_log_default_handler
13 153 g_logv call site: {node_id} g_utf8_to_utf16
9 0 EP call site: {node_id} fuzz_set_logging_func
7 82 mklevel_prefix call site: {node_id} format_unsigned
7 134 g_log_structured_array call site: {node_id} _g_log_abort
6 126 g_log_structured_array call site: {node_id} change_even
5 201 g_slice_alloc0 call site: {node_id}
3 240 g_logv call site: {node_id} g_utf8_validate_len
2 10 g_logv call site: {node_id}
2 15 g_vasprintf call site: {node_id} _g_gnulib_vasprintf

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 fuzz_set_logging_func [function] [call site] 00001
2 g_log_set_writer_func [function] [call site] 00002
3 g_return_if_fail [call site] 00003
3 g_mutex_lock [call site] 00004
3 g_mutex_unlock [call site] 00005
3 g_error [function] [call site] 00006
4 va_start [call site] 00007
4 g_logv [function] [call site] 00008
5 _g_vsnprintf [call site] 00009
5 format_string [function] [call site] 00010
6 g_assert [call site] 00011
6 strchr [call site] 00012
6 g_strdup_vprintf [function] [call site] 00013
7 g_vasprintf [function] [call site] 00014
8 g_return_val_if_fail [call site] 00015
8 _g_gnulib_vasprintf [function] [call site] 00016
9 vasnprintf [call site] 00017
8 vasprintf [call site] 00018
8 fputs [call site] 00019
8 fputs [call site] 00020
8 g_abort [function] [call site] 00021
9 IsDebuggerPresent [call site] 00022
9 DebugBreak [call site] 00023
9 abort [call site] 00024
9 ExitProcess [call site] 00025
8 va_copy [call site] 00026
8 g_new [call site] 00027
8 g_printf_string_upper_bound [function] [call site] 00028
9 _g_vsnprintf [call site] 00029
8 _g_vsprintf [call site] 00030
8 va_end [call site] 00031
8 g_free [call site] 00032
5 g_strcmp0 [function] [call site] 00033
6 strcmp [call site] 00034
5 g_pattern_match_simple [function] [call site] 00035
6 g_return_val_if_fail [call site] 00036
6 g_return_val_if_fail [call site] 00037
6 g_pattern_spec_new [function] [call site] 00038
7 g_return_val_if_fail [call site] 00039
7 g_new [call site] 00040
7 strlen [call site] 00041
7 g_new [call site] 00042
7 memmove [call site] 00043
7 g_utf8_strreverse [function] [call site] 00044
8 strlen [call site] 00045
8 g_new [call site] 00046
8 g_assert [call site] 00047
7 g_free [call site] 00048
6 g_pattern_spec_match [function] [call site] 00049
7 g_return_val_if_fail [call site] 00050
7 g_return_val_if_fail [call site] 00051
7 g_pattern_ph_match [function] [call site] 00052
8 g_utf8_next_char [call site] 00053
8 g_utf8_next_char [call site] 00054
8 g_utf8_next_char [call site] 00055
8 g_pattern_ph_match [function] [call site] 00056
7 g_pattern_ph_match [function] [call site] 00057
7 g_utf8_strreverse [function] [call site] 00058
7 g_pattern_ph_match [function] [call site] 00059
7 g_free [call site] 00060
7 strcmp [call site] 00061
7 strncmp [call site] 00062
7 strcmp [call site] 00063
7 strcmp [call site] 00064
7 g_return_val_if_fail [call site] 00065
6 strlen [call site] 00066
6 g_pattern_spec_free [function] [call site] 00067
7 g_return_if_fail [call site] 00068
7 g_free [call site] 00069
7 g_free [call site] 00070
5 g_slist_delete_link [function] [call site] 00071
6 _g_slist_remove_link [function] [call site] 00072
6 _g_slist_free1 [call site] 00073
5 g_free [call site] 00074
5 g_free [call site] 00075
5 g_free [call site] 00076
5 g_free [call site] 00077
5 mklevel_prefix [function] [call site] 00078
6 strcpy [call site] 00079
6 log_level_to_color [function] [call site] 00080
6 strcat [call site] 00081
6 strcat [call site] 00082
6 strcat [call site] 00083
6 strcat [call site] 00084
6 strcat [call site] 00085
6 strcat [call site] 00086
6 strcat [call site] 00087
6 format_unsigned [function] [call site] 00088
6 strcat [call site] 00089
6 strcat [call site] 00090
6 color_reset [function] [call site] 00091
6 strcat [call site] 00092
6 strcat [call site] 00093
6 g_test_initialized [call site] 00094
6 log_level_to_file [function] [call site] 00095
5 g_strdup_printf [function] [call site] 00096
6 va_start [call site] 00097
6 g_strdup_vprintf [function] [call site] 00098
6 va_end [call site] 00099
5 g_log_default_handler [function] [call site] 00100
6 _g_log_fallback_handler [function] [call site] 00101
7 mklevel_prefix [function] [call site] 00102
7 format_unsigned [function] [call site] 00103
7 getpid [call site] 00104
7 write_string [function] [call site] 00105
8 fputs [call site] 00106
7 write_string [function] [call site] 00107
7 write_string [function] [call site] 00108
7 write_string [function] [call site] 00109
7 write_string [function] [call site] 00110
7 write_string [function] [call site] 00111
7 write_string [function] [call site] 00112
7 write_string [function] [call site] 00113
7 write_string [function] [call site] 00114
7 write_string [function] [call site] 00115
7 write_string [function] [call site] 00116
6 log_level_to_priority [function] [call site] 00117
6 g_log_structured_array [function] [call site] 00118
7 GPOINTER_TO_UINT [call site] 00119
7 g_private_get [call site] 00120
7 g_mutex_lock [call site] 00121
7 g_mutex_unlock [call site] 00122
7 g_private_set [call site] 00123
7 GUINT_TO_POINTER [call site] 00124
7 g_assert [call site] 00125
7 writer_func [function] [call site] 00126
8 change_even [function] [call site] 00127
9 g_rw_lock_writer_lock [call site] 00128
9 g_assert [call site] 00129
9 GPOINTER_TO_INT [call site] 00130
9 g_assert [call site] 00131
9 g_rw_lock_writer_unlock [call site] 00132
7 g_private_set [call site] 00133
7 GUINT_TO_POINTER [call site] 00134
7 _g_log_abort [function] [call site] 00135
8 g_test_subprocess [function] [call site] 00136
8 _exit [call site] 00137
8 IsDebuggerPresent [call site] 00138
8 G_BREAKPOINT [call site] 00139
8 g_abort [function] [call site] 00140
5 g_free [call site] 00141
5 g_bit_nth_msf [call site] 00142
5 g_bit_nth_msf [call site] 00143
5 g_mutex_lock [call site] 00144
5 GPOINTER_TO_UINT [call site] 00145
5 g_private_get [call site] 00146
5 g_log_find_domain_L [function] [call site] 00147
6 strcmp [call site] 00148
5 g_log_domain_get_handler_L [function] [call site] 00149
5 g_mutex_unlock [call site] 00150
5 g_private_set [call site] 00151
5 GUINT_TO_POINTER [call site] 00152
5 log_func [call site] 00153
5 fatal_log_func [call site] 00154
5 g_utf8_to_utf16 [function] [call site] 00155
6 g_return_val_if_fail [call site] 00156
6 g_utf8_get_char_extended [function] [call site] 00157
7 G_UNLIKELY [call site] 00158
7 G_UNLIKELY [call site] 00159
7 G_UNLIKELY [call site] 00160
7 G_UNLIKELY [call site] 00161
6 g_set_error_literal [function] [call site] 00162
7 g_error_new_literal [function] [call site] 00163
8 g_return_val_if_fail [call site] 00164
8 g_return_val_if_fail [call site] 00165
8 g_error_new_steal [function] [call site] 00166
9 g_error_allocate [function] [call site] 00167
10 g_rw_lock_reader_lock [call site] 00168
10 error_domain_lookup [function] [call site] 00169
11 g_hash_table_lookup [function] [call site] 00170
12 g_return_val_if_fail [call site] 00171
12 g_hash_table_lookup_node [function] [call site] 00172
13 G_UNLIKELY [call site] 00173
13 HASH_IS_REAL [call site] 00174
13 g_hash_table_hash_to_index [function] [call site] 00175
13 HASH_IS_UNUSED [call site] 00176
13 g_hash_table_fetch_key_or_value [function] [call site] 00177
14 GUINT_TO_POINTER [call site] 00178
13 HASH_IS_TOMBSTONE [call site] 00179
12 HASH_IS_REAL [call site] 00180
12 g_hash_table_fetch_key_or_value [function] [call site] 00181
11 GUINT_TO_POINTER [call site] 00182
10 g_rw_lock_reader_unlock [call site] 00183
10 g_rw_lock_reader_unlock [call site] 00184
10 memset [call site] 00185
10 ALIGN_STRUCT [call site] 00186
10 g_slice_alloc0 [function] [call site] 00187
11 g_slice_alloc [function] [call site] 00188
12 g_malloc [function] [call site] 00189
13 G_LIKELY [call site] 00190
13 malloc [function] [call site] 00191
14 dlsym [call site] 00192
14 real_malloc [call site] 00193
13 TRACE [call site] 00194
13 GLIB_MEM_ALLOC [call site] 00195
13 g_error [function] [call site] 00196
13 TRACE [call site] 00197
13 GLIB_MEM_ALLOC [call site] 00198
12 TRACE [call site] 00199
12 GLIB_SLICE_ALLOC [call site] 00200
11 memset [call site] 00201
10 ALIGN_STRUCT [call site] 00202
10 VALGRIND_MALLOCLIKE_BLOCK [call site] 00203
10 VALGRIND_MALLOCLIKE_BLOCK [call site] 00204
10 ALIGN_STRUCT [call site] 00205
10 ALIGN_STRUCT [call site] 00206
10 g_slice_alloc0 [function] [call site] 00207
8 g_strdup [call site] 00208
7 g_warning [function] [call site] 00209
8 va_start [call site] 00210
8 g_logv [function] [call site] 00211
8 va_end [call site] 00212
6 _ [call site] 00213
6 g_set_error_literal [function] [call site] 00214
6 _ [call site] 00215
6 g_set_error_literal [function] [call site] 00216
6 _ [call site] 00217
6 g_set_error_literal [function] [call site] 00218
6 _ [call site] 00219
6 g_utf8_next_char [call site] 00220
6 try_malloc_n [function] [call site] 00221
7 g_try_malloc_n [function] [call site] 00222
8 SIZE_OVERFLOWS [call site] 00223
8 g_try_malloc [function] [call site] 00224
9 G_LIKELY [call site] 00225
9 malloc [function] [call site] 00226
9 TRACE [call site] 00227
9 GLIB_MEM_ALLOC [call site] 00228
7 g_set_error_literal [function] [call site] 00229
7 _ [call site] 00230
6 g_utf8_get_char [function] [call site] 00231
7 UTF8_COMPUTE [call site] 00232
7 UTF8_GET [call site] 00233
6 g_utf8_next_char [call site] 00234
5 MessageBoxW [call site] 00235
5 g_free [call site] 00236
5 _g_log_abort [function] [call site] 00237
5 g_private_set [call site] 00238
5 GUINT_TO_POINTER [call site] 00239
5 g_free [call site] 00240
4 va_end [call site] 00241
3 g_mutex_unlock [call site] 00242
1 g_utf8_validate_len [function] [call site] 00243
2 fast_validate_len [function] [call site] 00244
3 g_assert [call site] 00245
3 G_UNLIKELY [call site] 00246
3 G_UNLIKELY [call site] 00247
3 G_UNLIKELY [call site] 00248
3 VALIDATE_BYTE [call site] 00249
3 VALIDATE_BYTE [call site] 00250
3 VALIDATE_BYTE [call site] 00251
3 G_UNLIKELY [call site] 00252
3 VALIDATE_BYTE [call site] 00253
3 G_UNLIKELY [call site] 00254
3 VALIDATE_BYTE [call site] 00255
3 VALIDATE_BYTE [call site] 00256
3 VALIDATE_BYTE [call site] 00257
3 VALIDATE_BYTE [call site] 00258