Fuzz introspector: fuzz-cpal
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
126 10 Stream::read_bytes call site: 00010 diamond_font
64 198 Stream::read_bytes call site: 00198 ItemVariationStore::parse_delta
63 264 Stream::new_at call site: 00264 RegionAxisCoordinatesRecord::evaluate_axis
55 138 VecPainter::outline_glyph call site: 00138 DeltaSetIndexMap::map
35 329 Stream::read_bytes call site: 00329 Stream::read
4 3 LazyArray16::len call site: 00003 Stream::read
1 0 EP call site: 00000
1 382 VecPainter::paint call site: 00382

Fuzzer calltree

0 fuzz_target [function] [call site] 00000
1 LazyArray16::len [function] [call site] 00001
2 LazyArray16::len [function] [call site] 00002
3 LazyArray16::len [function] [call site] 00003
1 cpal::Table::parse [function] [call site] 00004
2 Stream::new [function] [call site] 00005
2 Stream::read [function] [call site] 00006
3 Stream::read_bytes [function] [call site] 00007
4 LazyArray16::len [function] [call site] 00008
4 checked_sub [function] [call site] 00009
4 shared_component_fan_out_is_bounded_by_the_visit_budget [function] [call site] 00010
5 diamond_font [function] [call site] 00011
6 GenericStateEntry::has_push [function] [call site] 00012
6 diamond_composite_glyph [function] [call site] 00013
7 Cff2::new [function] [call site] 00014
8 Some [function] [call site] 00015
8 Cff2::new [function] [call site] 00016
8 Cff2::new [function] [call site] 00017
7 extend_from_slice [function] [call site] 00018
7 to_be_bytes [function] [call site] 00019
7 extend_from_slice [function] [call site] 00020
7 to_be_bytes [function] [call site] 00021
7 extend_from_slice [function] [call site] 00022
7 to_be_bytes [function] [call site] 00023
7 extend_from_slice [function] [call site] 00024
7 to_be_bytes [function] [call site] 00025
7 extend_from_slice [function] [call site] 00026
7 to_be_bytes [function] [call site] 00027
7 extend_from_slice [function] [call site] 00028
7 AxisValueFlags::to_be_bytes [function] [call site] 00029
7 extend_from_slice [function] [call site] 00030
7 u16::to_be_bytes [function] [call site] 00031
7 extend_from_slice [function] [call site] 00032
7 to_be_bytes [function] [call site] 00033
7 extend_from_slice [function] [call site] 00034
7 to_be_bytes [function] [call site] 00035
6 LazyArray16::len [function] [call site] 00036
6 Cff2::new [function] [call site] 00037
6 Cff2::new [function] [call site] 00038
6 Self::extend_from_slice [function] [call site] 00039
6 LazyArray16::len [function] [call site] 00040
6 to_be_bytes [function] [call site] 00041
6 extend_from_slice [function] [call site] 00042
6 Self::extend_from_slice [function] [call site] 00043
6 LazyArray16::len [function] [call site] 00044
6 to_be_bytes [function] [call site] 00045
6 Cff2::new [function] [call site] 00046
6 Self::extend_from_slice [function] [call site] 00047
6 to_be_bytes [function] [call site] 00048
6 Self::extend_from_slice [function] [call site] 00049
6 to_be_bytes [function] [call site] 00050
6 Self::extend_from_slice [function] [call site] 00051
6 to_be_bytes [function] [call site] 00052
6 Self::extend_from_slice [function] [call site] 00053
6 to_be_bytes [function] [call site] 00054
6 Self::extend_from_slice [function] [call site] 00055
6 to_be_bytes [function] [call site] 00056
6 Self::extend_from_slice [function] [call site] 00057
6 to_be_bytes [function] [call site] 00058
6 Self::extend_from_slice [function] [call site] 00059
6 to_be_bytes [function] [call site] 00060
6 Self::extend_from_slice [function] [call site] 00061
6 to_be_bytes [function] [call site] 00062
6 Self::extend_from_slice [function] [call site] 00063
6 to_be_bytes [function] [call site] 00064
6 Self::extend_from_slice [function] [call site] 00065
6 to_be_bytes [function] [call site] 00066
6 Self::extend_from_slice [function] [call site] 00067
6 to_be_bytes [function] [call site] 00068
6 Self::extend_from_slice [function] [call site] 00069
6 to_be_bytes [function] [call site] 00070
6 Self::extend_from_slice [function] [call site] 00071
6 to_be_bytes [function] [call site] 00072
6 Self::extend_from_slice [function] [call site] 00073
6 to_be_bytes [function] [call site] 00074
6 Self::extend_from_slice [function] [call site] 00075
6 to_be_bytes [function] [call site] 00076
6 Self::extend_from_slice [function] [call site] 00077
6 to_be_bytes [function] [call site] 00078
6 Self::extend_from_slice [function] [call site] 00079
6 to_be_bytes [function] [call site] 00080
6 Cff2::new [function] [call site] 00081
6 Self::extend_from_slice [function] [call site] 00082
6 to_be_bytes [function] [call site] 00083
6 Self::extend_from_slice [function] [call site] 00084
6 to_be_bytes [function] [call site] 00085
6 Self::extend_from_slice [function] [call site] 00086
6 to_be_bytes [function] [call site] 00087
6 Self::extend_from_slice [function] [call site] 00088
6 to_be_bytes [function] [call site] 00089
6 Self::extend_from_slice [function] [call site] 00090
6 Self::extend_from_slice [function] [call site] 00091
6 to_be_bytes [function] [call site] 00092
6 Cff2::new [function] [call site] 00093
6 Self::extend_from_slice [function] [call site] 00094
6 to_be_bytes [function] [call site] 00095
6 Self::extend_from_slice [function] [call site] 00096
6 u16::to_be_bytes [function] [call site] 00097
6 Cff2::new [function] [call site] 00098
6 extend_from_slice [function] [call site] 00099
6 to_be_bytes [function] [call site] 00100
6 extend_from_slice [function] [call site] 00101
6 LazyArray16::len [function] [call site] 00102
6 to_be_bytes [function] [call site] 00103
6 extend_from_slice [function] [call site] 00104
6 to_be_bytes [function] [call site] 00105
6 extend_from_slice [function] [call site] 00106
6 to_be_bytes [function] [call site] 00107
6 extend_from_slice [function] [call site] 00108
6 to_be_bytes [function] [call site] 00109
6 LazyArray16::len [function] [call site] 00110
6 extend_from_slice [function] [call site] 00111
6 extend_from_slice [function] [call site] 00112
6 to_be_bytes [function] [call site] 00113
6 extend_from_slice [function] [call site] 00114
6 to_be_bytes [function] [call site] 00115
6 extend_from_slice [function] [call site] 00116
6 LazyArray16::len [function] [call site] 00117
6 to_be_bytes [function] [call site] 00118
6 LazyArray16::len [function] [call site] 00119
6 extend_from_slice [function] [call site] 00120
5 ttf_parser::Face::parse [function] [call site] 00121
6 Stream::new [function] [call site] 00122
6 read::<Magic> [function] [call site] 00123
6 ok_or [function] [call site] 00124
6 skip::<u32> [function] [call site] 00125
6 read::<u32> [function] [call site] 00126
6 ok_or [function] [call site] 00127
6 read_array32::<Offset32> [function] [call site] 00128
6 ok_or [function] [call site] 00129
6 Vec::get [function] [call site] 00130
7 diamond_font [function] [call site] 00131
7 ttf_parser::Face::parse [function] [call site] 00132
7 Result::unwrap [function] [call site] 00133
7 LazyArray16::default [function] [call site] 00134
7 std::time::Instant::now [function] [call site] 00135
7 VecPainter::outline_glyph [function] [call site] 00136
8 GenericStateEntry::has_push [function] [call site] 00137
8 Command::OutlineGlyph [function] [call site] 00138
7 ttf_parser::GlyphId [function] [call site] 00139
7 elapsed [function] [call site] 00140
6 ok_or [function] [call site] 00141
6 Offset16::to_usize [function] [call site] 00142
7 usize::num_from [function] [call site] 00143
6 checked_sub [function] [call site] 00144
6 Vec::offset [function] [call site] 00145
7 short_offsets [function] [call site] 00146
8 convert [function] [call site] 00147
9 Vec::with_capacity [function] [call site] 00148
9 convert_type [function] [call site] 00149
10 Vec::extend_from_slice [function] [call site] 00150
10 Vec::extend_from_slice [function] [call site] 00151
10 Vec::extend_from_slice [function] [call site] 00152
10 Vec::extend_from_slice [function] [call site] 00153
10 Vec::extend_from_slice [function] [call site] 00154
10 i8::to_be_bytes [function] [call site] 00155
10 Vec::extend_from_slice [function] [call site] 00156
10 u8::to_be_bytes [function] [call site] 00157
10 Vec::extend_from_slice [function] [call site] 00158
10 i16::to_be_bytes [function] [call site] 00159
10 Vec::extend_from_slice [function] [call site] 00160
10 u16::to_be_bytes [function] [call site] 00161
10 Vec::extend_from_slice [function] [call site] 00162
10 i32::to_be_bytes [function] [call site] 00163
10 Vec::extend_from_slice [function] [call site] 00164
10 u32::to_be_bytes [function] [call site] 00165
10 GenericStateEntry::has_push [function] [call site] 00166
10 GenericStateEntry::has_push [function] [call site] 00167
10 GenericStateEntry::has_push [function] [call site] 00168
10 GenericStateEntry::has_push [function] [call site] 00169
10 GenericStateEntry::has_push [function] [call site] 00170
10 GenericStateEntry::has_push [function] [call site] 00171
10 Vec::extend_from_slice [function] [call site] 00172
10 i16::to_be_bytes [function] [call site] 00173
10 GenericStateEntry::has_push [function] [call site] 00174
10 Vec::extend_from_slice [function] [call site] 00175
10 i32::to_be_bytes [function] [call site] 00176
8 DeltaSetIndexMap::map [function] [call site] 00177
9 Stream::new [function] [call site] 00178
9 read::<u8> [function] [call site] 00179
9 read::<u8> [function] [call site] 00180
9 read::<u16> [function] [call site] 00181
9 read::<u32> [function] [call site] 00182
9 usize::num_from [function] [call site] 00183
9 Stream::advance_checked [function] [call site] 00184
10 LazyArray16::len [function] [call site] 00185
10 checked_sub [function] [call site] 00186
10 Stream::advance [function] [call site] 00187
10 Some [function] [call site] 00188
9 usize::num_from [function] [call site] 00189
9 Self::checked_mul [function] [call site] 00190
9 usize::try_from [function] [call site] 00191
9 ok [function] [call site] 00192
9 Stream::read_bytes [function] [call site] 00193
10 LazyArray16::len [function] [call site] 00194
10 checked_sub [function] [call site] 00195
10 shared_component_fan_out_is_bounded_by_the_visit_budget [function] [call site] 00196
10 Stream::advance [function] [call site] 00197
10 Some [function] [call site] 00198
9 usize::num_from [function] [call site] 00199
9 usize::num_from [function] [call site] 00200
9 Some [function] [call site] 00201
9 u16::try_from [function] [call site] 00202
9 ok [function] [call site] 00203
9 u16::try_from [function] [call site] 00204
9 ok [function] [call site] 00205
8 UInt16 [function] [call site] 00206
8 .count).map(|i| [call site] 00207
7 Table::parse [function] [call site] 00208
8 Stream::new [function] [call site] 00209
8 skip::<u16> [function] [call site] 00210
8 read::<u16> [function] [call site] 00211
8 read_array16::<EncodingRecord> [function] [call site] 00212
8 Some [function] [call site] 00213
7 nzu16 [function] [call site] 00214
8 NonZeroU16::new [function] [call site] 00215
8 Self::unwrap [function] [call site] 00216
7 Option::unwrap [function] [call site] 00217
6 ok_or [function] [call site] 00218
6 Stream::advance_checked [function] [call site] 00219
6 Option::ok_or [function] [call site] 00220
6 read::<Magic> [function] [call site] 00221
6 ok_or [function] [call site] 00222
6 Err [function] [call site] 00223
6 Err [function] [call site] 00224
6 read::<u16> [function] [call site] 00225
6 ok_or [function] [call site] 00226
6 Vec::advance [function] [call site] 00227
7 face_from_ptr [function] [call site] 00228
7 &'static [call site] 00229
8 ttfp_get_glyph_hor_advance [function] [call site] 00230
9 face_from_ptr [function] [call site] 00231
9 &'static [call site] 00232
9 Option::unwrap_or [function] [call site] 00233
8 Face::is_variable [function] [call site] 00234
9 is_some [function] [call site] 00235
8 Table::advance_offset [function] [call site] 00236
9 DeltaSetIndexMap::new [function] [call site] 00237
9 shared_component_fan_out_is_bounded_by_the_visit_budget [function] [call site] 00238
9 Offset16::to_usize [function] [call site] 00239
9 DeltaSetIndexMap::map [function] [call site] 00240
10 Stream::new [function] [call site] 00241
10 read::<u8> [function] [call site] 00242
10 read::<u8> [function] [call site] 00243
10 read::<u16> [function] [call site] 00244
10 read::<u32> [function] [call site] 00245
10 usize::num_from [function] [call site] 00246
10 Stream::advance_checked [function] [call site] 00247
10 usize::num_from [function] [call site] 00248
10 Self::checked_mul [function] [call site] 00249
10 usize::try_from [function] [call site] 00250
10 ok [function] [call site] 00251
10 Stream::read_bytes [function] [call site] 00252
10 usize::num_from [function] [call site] 00253
10 usize::num_from [function] [call site] 00254
10 Some [function] [call site] 00255
10 u16::try_from [function] [call site] 00256
10 ok [function] [call site] 00257
10 u16::try_from [function] [call site] 00258
10 ok [function] [call site] 00259
9 ItemVariationStore::parse_delta [function] [call site] 00260
10 shared_component_fan_out_is_bounded_by_the_visit_budget [function] [call site] 00261
10 Stream::new_at [function] [call site] 00262
11 LazyArray16::len [function] [call site] 00263
11 Some [function] [call site] 00264
10 usize::num_from [function] [call site] 00265
10 read::<u16> [function] [call site] 00266
10 read::<u16> [function] [call site] 00267
10 read::<u16> [function] [call site] 00268
10 read_array16::<u16> [function] [call site] 00269
10 Vec::advance [function] [call site] 00270
10 usize::num_from [function] [call site] 00271
10 Self::checked_mul [function] [call site] 00272
10 usize::num_from [function] [call site] 00273
10 Option::get [function] [call site] 00274
11 diamond_font [function] [call site] 00275
11 ttf_parser::Face::parse [function] [call site] 00276
11 Result::unwrap [function] [call site] 00277
11 LazyArray16::default [function] [call site] 00278
11 std::time::Instant::now [function] [call site] 00279
11 VecPainter::outline_glyph [function] [call site] 00280
11 ttf_parser::GlyphId [function] [call site] 00281
11 elapsed [function] [call site] 00282
10 read::<i32> [function] [call site] 00283
10 usize::num_from [function] [call site] 00284
10 read::<i16> [function] [call site] 00285
10 VariationRegionList::evaluate_region [function] [call site] 00286
11 LazyArray16::into_iter [function] [call site] 00287
11 Self::IntoIter::enumerate [function] [call site] 00288
11 shared_component_fan_out_is_bounded_by_the_visit_budget [function] [call site] 00289
11 RegionAxisCoordinatesRecord::evaluate_axis [function] [call site] 00290
12 usize::num_from [function] [call site] 00291
12 usize::num_from [function] [call site] 00292
12 usize::num_from [function] [call site] 00293
12 usize::num_from [function] [call site] 00294
11 shared_component_fan_out_is_bounded_by_the_visit_budget [function] [call site] 00295
10 Option::get [function] [call site] 00296
10 usize::num_from [function] [call site] 00297
10 read::<i16> [function] [call site] 00298
10 usize::num_from [function] [call site] 00299
10 read::<i8> [function] [call site] 00300
10 VariationRegionList::evaluate_region [function] [call site] 00301
10 Some [function] [call site] 00302
8 Face::coords [function] [call site] 00303
9 VarCoords::as_slice [function] [call site] 00304
10 usize::num_from [function] [call site] 00305
8 Face::glyph_phantom_points [function] [call site] 00306
9 Face::glyph_phantom_points [function] [call site] 00307
10 Face::glyph_phantom_points [function] [call site] 00308
10 Face::coords [function] [call site] 00309
9 Face::coords [function] [call site] 00310
8 u16::try_num_from [function] [call site] 00311
9 i32::try_num_from [function] [call site] 00312
10 Some [function] [call site] 00313
9 Option::and_then [function] [call site] 00314
9 u16::try_from [function] [call site] 00315
9 ok [function] [call site] 00316
8 ttfp_get_glyph_hor_advance [function] [call site] 00317
7 Option::unwrap_or [function] [call site] 00318
6 read_array16::<TableRecord> [function] [call site] 00319
6 ok_or [function] [call site] 00320
6 Ok [function] [call site] 00321
5 Result::unwrap [function] [call site] 00322
5 LazyArray16::default [function] [call site] 00323
5 std::time::Instant::now [function] [call site] 00324
5 VecPainter::outline_glyph [function] [call site] 00325
5 ttf_parser::GlyphId [function] [call site] 00326
5 elapsed [function] [call site] 00327
4 Stream::advance [function] [call site] 00328
4 Some [function] [call site] 00329
3 Option::and_then [function] [call site] 00330
2 read::<Offset16> [function] [call site] 00331
2 Offset16::to_usize [function] [call site] 00332
2 read::<Offset16> [function] [call site] 00333
2 Offset16::to_usize [function] [call site] 00334
2 read::<Offset16> [function] [call site] 00335
2 Offset16::to_usize [function] [call site] 00336
2 Stream::new_at [function] [call site] 00337
2 Stream::read [function] [call site] 00338
2 Stream::read [function] [call site] 00339
2 Stream::read_bytes [function] [call site] 00340
2 usize::num_from [function] [call site] 00341
2 Some [function] [call site] 00342
2 Vec::get [function] [call site] 00343
2 Vec::get [function] [call site] 00344
1 colr::Table::parse [function] [call site] 00345
2 Stream::new [function] [call site] 00346
2 Stream::read [function] [call site] 00347
2 read::<Offset16> [function] [call site] 00348
2 Offset16::to_usize [function] [call site] 00349
2 read::<Offset16> [function] [call site] 00350
2 Offset16::to_usize [function] [call site] 00351
2 read::<Offset16> [function] [call site] 00352
2 Offset16::to_usize [function] [call site] 00353
2 Stream::new_at [function] [call site] 00354
2 Stream::read [function] [call site] 00355
2 Stream::read [function] [call site] 00356
2 Stream::read_bytes [function] [call site] 00357
2 usize::num_from [function] [call site] 00358
2 Some [function] [call site] 00359
2 Vec::get [function] [call site] 00360
2 Vec::get [function] [call site] 00361
1 VecPainter [function] [call site] 00362
1 ttf_parser::GlyphId [function] [call site] 00363
1 VecPainter::paint [function] [call site] 00364
2 CustomPaint::Solid [function] [call site] 00365
2 CustomPaint::LinearGradient [function] [call site] 00366
2 LinearGradient::stops [function] [call site] 00367
2 DeltaSetIndexMap::map [function] [call site] 00368
2 CustomStop [function] [call site] 00369
2 collect [function] [call site] 00370
2 CustomPaint::RadialGradient [function] [call site] 00371
2 LinearGradient::stops [function] [call site] 00372
2 DeltaSetIndexMap::map [function] [call site] 00373
2 CustomStop [function] [call site] 00374
2 collect [function] [call site] 00375
2 CustomPaint::SweepGradient [function] [call site] 00376
2 LinearGradient::stops [function] [call site] 00377
2 DeltaSetIndexMap::map [function] [call site] 00378
2 CustomStop [function] [call site] 00379
2 collect [function] [call site] 00380
2 GenericStateEntry::has_push [function] [call site] 00381
2 Command::Paint [function] [call site] 00382
1 RgbaColor::new [function] [call site] 00383