Fuzz introspector: parse
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
60 137 ExpressionParser::handle_if_lparen call site: {node_id} Lexer::scan_number
45 202 InstanceFlags::set_may_enter call site: {node_id} Lexer::scan_string
33 248 PackedOption::is_some call site: {node_id} Parser::cur_span
24 296 ScopedHashMap::entry_with_depth call site: {node_id} Parser::expect
22 4 CodeBuilder::pop_operand call site: {node_id} Component::get_export
21 68 machreg_to_gpr call site: {node_id} AtomicOP::unset
16 36 CodeBuilder::alloc_local call site: {node_id} ScopeVec::push
7 90 AtomicOP::unset call site: {node_id} list
6 401 TypeRegistryInner::register_singleton_rec_group call site: {node_id} iter_entity_range
5 29 ScopedHashMap::entry_with_depth call site: {node_id} CrashTestDummy::cloned
5 54 int_const_inst call site: {node_id} page_size
5 126 ExpressionParser::handle_if_lparen call site: {node_id} parse

Fuzzer calltree

0 fuzz_target [function] [call site] 00000
1 drop [function] [call site] 00001
2 CodeBuilder::pop_operand [function] [call site] 00002
3 OperatorValidator::record_pop [function] [call site] 00003
3 try_unwrap [function] [call site] 00004
4 clone [function] [call site] 00011
5 OnceLock::new [function] [call site] 00012
6 SendSyncUnsafeCell::new [function] [call site] 00013
6 MaybeUninit::uninit [function] [call site] 00015
5 wasmtime_caller_export_get [function] [call site] 00016
6 str::from_utf8 [function] [call site] 00017
6 slice_from_raw_parts [function] [call site] 00018
7 std::slice::from_raw_parts [function] [call site] 00019
6 Component::get_export [function] [call site] 00020
7 hashmap [function] [call site] 00021
8 ScopedHashMap::new [function] [call site] 00022
9 FxHashMap::default [function] [call site] 00023
8 test_vacant_entry_no_insert [function] [call site] 00024
9 ScopedHashMap::entry [function] [call site] 00025
10 ScopedHashMap::entry_with_depth [function] [call site] 00026
11 ContextArgs::len [function] [call site] 00027
12 ContextArgs::as_slice [function] [call site] 00028
11 ScopedHashMap::get [function] [call site] 00029
12 CrashTestDummy::cloned [function] [call site] 00031
13 load [function] [call site] 00032
14 get_memarg [function] [call site] 00033
14 CodeBuilder::alloc_local [function] [call site] 00034
15 Stack::push [function] [call site] 00035
15 u32::try_from [function] [call site] 00036
14 type_of_memory_access [function] [call site] 00037
14 ScopeVec::push [function] [call site] 00038
15 into [function] [call site] 00039
16 PathBuf::from [function] [call site] 00040
15 SmallVec::len [function] [call site] 00041
15 borrow_mut [function] [call site] 00042
15 PrimaryMap::last_mut [function] [call site] 00043
16 PrimaryMap::len [function] [call site] 00044
15 UnboxedValues::as_mut_ptr [function] [call site] 00046
15 core::slice::from_raw_parts_mut [function] [call site] 00047
14 Instruction::LocalSet [function] [call site] 00048
14 Instruction::Block [function] [call site] 00049
14 Instruction::Block [function] [call site] 00050
14 Instruction::MemorySize [function] [call site] 00051
14 int_const_inst [function] [call site] 00052
15 Instruction::I32Const [function] [call site] 00053
15 Instruction::I64Const [function] [call site] 00054
14 page_size [function] [call site] 00055
15 Parser::peek [function] [call site] 00056
16 peek [function] [call site] 00057
17 each_ip [function] [call site] 00058
18 enc_rie_f [function] [call site] 00059
19 machreg_to_gpr [function] [call site] 00060
20 u32::from [function] [call site] 00061
21 DiscriminantSize::byte_size [function] [call site] 00062
20 Reg::to_real_reg [function] [call site] 00063
21 pinned_vreg_to_preg [function] [call site] 00064
22 VReg::vreg [function] [call site] 00065
22 PReg::from_index [function] [call site] 00067
20 PReg::hw_enc [function] [call site] 00068
18 next_test_ip4 [function] [call site] 00069
19 base_port [function] [call site] 00070
20 String::from [function] [call site] 00071
20 env::current_dir [function] [call site] 00072
20 into_os_string [function] [call site] 00073
20 wtf8buf_into_string [function] [call site] 00074
21 from_str [function] [call site] 00075
22 Store::call_hook [function] [call site] 00076
23 CallHookInner::Sync [function] [call site] 00078
21 CodePoint::from_u32 [function] [call site] 00079
19 SocketAddr::V4 [function] [call site] 00080
18 next_test_ip6 [function] [call site] 00081
19 SocketAddr::V6 [function] [call site] 00082
16 Parser::cursor [function] [call site] 00083
15 Parser::peek2 [function] [call site] 00084
16 T::peek2 [function] [call site] 00085
15 Parser::parens [function] [call site] 00088
16 AtomicOP::unset [function] [call site] 00089
17 SolverCtx::sign_extend [function] [call site] 00090
18 list [function] [call site] 00091
19 Backend::from [function] [call site] 00092
19 OpenvinoBackend::default [function] [call site] 00094
19 WinMLBackend::default [function] [call site] 00095
19 OnnxBackend::default [function] [call site] 00096
19 PytorchBackend::default [function] [call site] 00097
17 Inst::load_int_mask [function] [call site] 00098
18 Type::is_int [function] [call site] 00099
18 Type::bits [function] [call site] 00100
19 Type::is_dynamic_vector [function] [call site] 00101
19 Type::lane_bits [function] [call site] 00102
20 Type::lane_type [function] [call site] 00103
19 Type::lane_count [function] [call site] 00105
20 Type::log2_lane_count [function] [call site] 00106
18 Inst::load_imm12 [function] [call site] 00107
18 Imm12::from_i16 [function] [call site] 00114
18 Writable::to_reg [function] [call site] 00115
17 WritableReg::to_reg [function] [call site] 00116
17 Inst::construct_bit_not [function] [call site] 00117
17 WritableReg::to_reg [function] [call site] 00118
17 WritableReg::to_reg [function] [call site] 00119
17 WritableReg::to_reg [function] [call site] 00120
16 ExpressionParser::handle_if_lparen [function] [call site] 00123
17 mem::replace [function] [call site] 00132
17 Instruction::End [function] [call site] 00133
17 ExpressionParser::push_instr [function] [call site] 00134
17 Instruction::Else [function] [call site] 00136
17 Parser::error [function] [call site] 00139
18 to_string [function] [call site] 00140
19 Lexer::scan_chars [function] [call site] 00141
20 Lexer::loc [function] [call site] 00142
20 Lexer::next_ch [function] [call site] 00143
21 Lexer::next [function] [call site] 00145
22 Lexer::scan_comment [function] [call site] 00147
23 Lexer::rest_of_line [function] [call site] 00148
23 Token::Comment [function] [call site] 00151
22 Lexer::scan_char [function] [call site] 00153
22 Lexer::scan_number [function] [call site] 00165
23 Lexer::looking_at_numeric [function] [call site] 00166
24 Lexer::looking_at [function] [call site] 00167
25 starts_with [function] [call site] 00168
23 Token::Float [function] [call site] 00170
23 Token::Integer [function] [call site] 00171
22 Lexer::scan_word [function] [call site] 00178
23 is_ascii_alphabetic [function] [call site] 00180
23 split_entity_name [function] [call site] 00181
24 str::split_at [function] [call site] 00182
24 str::len [function] [call site] 00183
24 trailing_digits [function] [call site] 00184
25 str::as_bytes [function] [call site] 00185
25 iter [function] [call site] 00186
26 cstr_to_path [function] [call site] 00188
27 CStr::from_ptr [function] [call site] 00189
27 socket_v6_to_str [function] [call site] 00190
28 set_scope_id [function] [call site] 00191
26 UnixListener::bind [function] [call site] 00193
26 spawn [function] [call site] 00194
27 with_ambient_tokio_runtime [function] [call site] 00195
28 tokio::runtime::Handle::try_current [function] [call site] 00196
28 InstanceFlags::set_may_enter [function] [call site] 00197
29 InstanceFlags::as_raw [function] [call site] 00198
30 GuestPtr::as_ptr [function] [call site] 00199
31 GuestPtr::new [function] [call site] 00200
31 GuestPtr::offset_base [function] [call site] 00201
29 VMGlobalDefinition::as_i32_mut [function] [call site] 00202
27 AbortOnDropJoinHandle [function] [call site] 00203
26 UnixStream::connect [function] [call site] 00204
25 ProgPoint::prev [function] [call site] 00205
25 take_while [function] [call site] 00206
25 WasiImpl::keep_alive_count [function] [call site] 00207
26 WasiImpl::table [function] [call site] 00208
27 T::table [function] [call site] 00209
24 starts_with [function] [call site] 00210
23 and_then [function] [call site] 00211
23 Self::numbered_entity [function] [call site] 00212
23 value_type [function] [call site] 00214
24 reference_type [function] [call site] 00215
25 WasmHeapType::top [function] [call site] 00216
24 dynTargetIsa::pointer_type [function] [call site] 00217
23 unwrap_or_else [function] [call site] 00218
23 Token::Identifier [function] [call site] 00219
22 Lexer::scan_name [function] [call site] 00221
23 Token::Name [function] [call site] 00222
22 Lexer::scan_string [function] [call site] 00224
23 Lexer::error [function] [call site] 00226
24 Span::new_single [function] [call site] 00227
23 Token::String [function] [call site] 00228
22 Lexer::scan_hex_sequence [function] [call site] 00230
23 char::is_digit [function] [call site] 00231
23 Token::HexSequence [function] [call site] 00232
22 Lexer::looking_at_srcloc [function] [call site] 00233
23 char::is_digit [function] [call site] 00234
22 Lexer::scan_srcloc [function] [call site] 00236
23 char::is_digit [function] [call site] 00237
23 Token::SourceLoc [function] [call site] 00238
19 KebabString::new [function] [call site] 00242
20 KebabStr::new [function] [call site] 00243
21 Self::new_unchecked [function] [call site] 00244
21 implAsRef+a::is_kebab_case [function] [call site] 00245
20 PackedOption::is_some [function] [call site] 00247
21 is_reserved_value [function] [call site] 00248
19 to_digit [function] [call site] 00253
19 to_digit [function] [call site] 00254
19 std::char::from_u32 [function] [call site] 00255
16 Parser::is_rparen [function] [call site] 00257
17 Parser::is [function] [call site] 00258
15 Parser::cur_span [function] [call site] 00262
15 is_power_of_two [function] [call site] 00263
15 Error::new [function] [call site] 00267
16 ErrorKind::Custom [function] [call site] 00268
14 int_mul_inst [function] [call site] 00270
14 Instruction::LocalGet [function] [call site] 00271
14 int_add_inst [function] [call site] 00272
14 int_le_u_inst [function] [call site] 00273
14 Instruction::BrIf [function] [call site] 00274
14 Instruction::LocalGet [function] [call site] 00275
14 int_le_s_inst [function] [call site] 00276
14 Instruction::BrIf [function] [call site] 00277
14 Instruction::LocalGet [function] [call site] 00278
14 Instruction::LocalSet [function] [call site] 00279
14 Instruction::Br [function] [call site] 00280
14 dummy_value_inst [function] [call site] 00281
15 Instruction::I32Const [function] [call site] 00282
15 Instruction::I64Const [function] [call site] 00283
15 Instruction::F32Const [function] [call site] 00284
15 Instruction::F64Const [function] [call site] 00285
15 Instruction::V128Const [function] [call site] 00286
15 Instruction::RefNull [function] [call site] 00287
14 Instruction::LocalSet [function] [call site] 00288
14 Instruction::LocalGet [function] [call site] 00289
11 Entry::Occupied [function] [call site] 00292
11 Entry::Vacant [function] [call site] 00293
11 InsertLoc::Occupied [function] [call site] 00294
11 Entry::Vacant [function] [call site] 00295
11 InsertLoc::Vacant [function] [call site] 00296
10 ScopedHashMap::depth [function] [call site] 00297
11 test_checked_sub [function] [call site] 00298
9 test_swap_front_back_remove [function] [call site] 00306
10 VecDeque::with_capacity [function] [call site] 00307
10 ListPool::with_capacity [function] [call site] 00308
11 Vec::with_capacity [function] [call site] 00309
11 ScopeVec::new [function] [call site] 00310
12 Default::default [function] [call site] 00311
10 test_into_iter_collect [function] [call site] 00312
11 BinaryHeap::from [function] [call site] 00313
11 IndexSet::into_iter [function] [call site] 00314
10 push_front [function] [call site] 00315
10 push_back [function] [call site] 00316
10 test [function] [call site] 00317
11 is_absolute [function] [call site] 00318
11 current_dir [function] [call site] 00319
9 AdaptiveMap::is_empty [function] [call site] 00320
10 AdaptiveMap::iter [function] [call site] 00321
11 AdaptiveMapIter::Small [function] [call site] 00322
11 AdaptiveMapIter::Large [function] [call site] 00323
10 vectorizelanes_all [function] [call site] 00324
11 DataValueExt::vector [function] [call site] 00325
10 DataFlowGraph::overwrite_inst_values [function] [call site] 00326
11 InstructionData::map_values [function] [call site] 00327
8 IndexSet::union_with [function] [call site] 00328
9 IndexSet::elem [function] [call site] 00329
10 IndexSet::get [function] [call site] 00330
10 IndexSet::set [function] [call site] 00331
10 AdaptiveMap::get_or_insert [function] [call site] 00332
11 Self::Large [function] [call site] 00335
11 test_zip [function] [call site] 00337
12 Allocation::is_none [function] [call site] 00338
13 Allocation::kind [function] [call site] 00339
11 Entry::or_insert [function] [call site] 00341
12 OccupiedEntry::into_mut [function] [call site] 00342
7 ComponentItem::from [function] [call site] 00343
8 Self::Component [function] [call site] 00344
8 Component::from [function] [call site] 00345
8 Self::ComponentInstance [function] [call site] 00348
8 ComponentInstance::from [function] [call site] 00349
8 Self::ComponentFunc [function] [call site] 00351
8 ComponentFunc::from [function] [call site] 00352
8 Self::Type [function] [call site] 00354
8 Type::from [function] [call site] 00355
9 Type::List [function] [call site] 00356
9 Type::Record [function] [call site] 00359
9 Record::from [function] [call site] 00360
9 Type::Tuple [function] [call site] 00362
9 Type::Variant [function] [call site] 00365
9 Variant::from [function] [call site] 00366
9 Type::Enum [function] [call site] 00368
9 Type::Option [function] [call site] 00371
9 OptionType::from [function] [call site] 00372
10 OptionType [function] [call site] 00373
9 Type::Result [function] [call site] 00374
9 ResultType::from [function] [call site] 00375
10 ResultType [function] [call site] 00376
9 Type::Flags [function] [call site] 00377
9 Type::Own [function] [call site] 00380
9 InstanceType::resource_type [function] [call site] 00381
10 unwrap_or_else [function] [call site] 00383
10 ResourceType::uninstantiated [function] [call site] 00384
9 Type::Borrow [function] [call site] 00385
8 Self::Module [function] [call site] 00386
8 Self::CoreFunc [function] [call site] 00389
8 FuncType::from_wasm_func_type [function] [call site] 00390
9 RegisteredType::new [function] [call site] 00391
10 Engine::gc_runtime [function] [call site] 00392
10 Engine::signatures [function] [call site] 00394
10 TypeRegistryInner::assert_canonicalized_for_runtime_usage_in_this_registry [function] [call site] 00396
11 Arc::trace [function] [call site] 00397
10 TypeRegistryInner::register_singleton_rec_group [function] [call site] 00398
11 PrimaryMap::default [function] [call site] 00399
12 PrimaryMap::new [function] [call site] 00400
11 TypeRegistryInner::register_rec_group [function] [call site] 00401
12 Vec::with_capacity [function] [call site] 00402
12 implExactSizeIterator::len [function] [call site] 00403
12 implExactSizeIterator::zip [function] [call site] 00404
12 iter_entity_range [function] [call site] 00405
12 Arc::canonicalize_for_hash_consing [function] [call site] 00406
12 RecGroupEntry::incref [function] [call site] 00407
13 fetch_add [function] [call site] 00408
12 trace_engine_indices [function] [call site] 00409
12 u32::try_from [function] [call site] 00410
12 Arc::canonicalize_for_runtime_usage [function] [call site] 00411
12 TypeRegistryInner::insert_one_type_from_rec_group [function] [call site] 00412
13 PackedOption::expect [function] [call site] 00414
14 PackedOption::expand [function] [call site] 00415
15 PackedOption::is_none [function] [call site] 00416
16 is_reserved_value [function] [call site] 00417
13 DrcCompiler::layouts [function] [call site] 00419
13 NullTypeLayouts::array_layout [function] [call site] 00420
14 common_array_layout [function] [call site] 00421
15 field [function] [call site] 00422
16 align_up [function] [call site] 00423
17 u32::is_power_of_two [function] [call site] 00424
17 u32::is_power_of_two [function] [call site] 00425
17 u32::checked_add [function] [call site] 00426
15 byte_size_of_wasm_ty_in_gc_heap [function] [call site] 00428
13 FuncEnvironment::struct_layout [function] [call site] 00430
14 FuncEnvironment::gc_layout [function] [call site] 00431
15 Map::contains_key [function] [call site] 00432
15 gc_compiler [function] [call site] 00433
14 ModuleTypesBuilder::unwrap_struct [function] [call site] 00442
13 alloc [function] [call site] 00445
14 Allocation::reg [function] [call site] 00446
15 Allocation::new [function] [call site] 00447
15 PReg::index [function] [call site] 00448
13 slab_id_to_shared_type_index [function] [call site] 00449
14 VMSharedTypeIndex::new [function] [call site] 00450
14 SlabId::into_raw [function] [call site] 00452
14 is_reserved_value [function] [call site] 00453
13 EngineOrModuleTypeIndex::unwrap_engine_type_index [function] [call site] 00454
14 EngineOrModuleTypeIndex::as_engine_type_index [function] [call site] 00455
14 unwrap_or_else [function] [call site] 00457
13 TypeRegistryInner::supertypes [function] [call site] 00458
14 and_then [function] [call site] 00459
14 as_deref [function] [call site] 00460
14 unwrap_or [function] [call site] 00461
13 Vec::with_capacity [function] [call site] 00462
13 iter::once [function] [call site] 00465
13 PrimaryMap::into_boxed_slice [function] [call site] 00467
14 BoxedSlice::from_raw [function] [call site] 00468
15 Box::from_raw [function] [call site] 00469
14 Box::into_raw [function] [call site] 00470
12 RecGroupEntry [function] [call site] 00472
12 shared_type_index_to_slab_id [function] [call site] 00474
13 VMSharedTypeIndex::is_reserved_value [function] [call site] 00475
13 SlabId::from_raw [function] [call site] 00476
13 VMSharedTypeIndex::bits [function] [call site] 00477
12 ModuleTypesBuilder::intern_trampoline_type [function] [call site] 00478
13 EntityType::unwrap_func [function] [call site] 00479
13 ModuleTypesBuilder::trampoline_type [function] [call site] 00480
13 WasmCompositeInnerType::Func [function] [call site] 00481
13 ModuleTypes::set_trampoline_type [function] [call site] 00482
14 ModuleInternedTypeIndex::is_reserved_value [function] [call site] 00483
14 ModuleInternedTypeIndex::is_reserved_value [function] [call site] 00484
14 WasmCompositeInnerType::is_func [function] [call site] 00485
14 WasmFuncType::is_trampoline_type [function] [call site] 00486
15 WasmFuncType::params [function] [call site] 00487
15 WasmFuncType::trampoline_type [function] [call site] 00488
16 Cow::Borrowed [function] [call site] 00489
16 Cow::Owned [function] [call site] 00490
16 WasmFuncType::returns [function] [call site] 00491
13 ModuleTypes::next_ty [function] [call site] 00493
14 PrimaryMap::next_key [function] [call site] 00494
13 ModuleTypes::push_rec_group [function] [call site] 00495
14 ModuleTypes::push [function] [call site] 00496
12 wasmtime_environ::WasmCompositeInnerType::Func [function] [call site] 00497
12 UntypedValue::into_owned [function] [call site] 00498
13 UntypedValue::new [function] [call site] 00499
11 iter::once [function] [call site] 00501
10 RegisteredType::clone [function] [call site] 00502
10 and_then [function] [call site] 00503
10 RegisteredType::from_parts [function] [call site] 00504
9 WasmCompositeInnerType::Func [function] [call site] 00505
8 Self::Resource [function] [call site] 00506
6 initialize [function] [call site] 00507
7 std::mem::MaybeUninit::as_mut_ptr [function] [call site] 00508
4 Arc::downgrade [function] [call site] 00509
2 CodeBuilder::drop_operand [function] [call site] 00510
3 CodeBuilder::mix_operand_into_global [function] [call site] 00511
4 Unstructured::ratio [function] [call site] 00513
4 get_or_insert_with [function] [call site] 00515
4 ConstExpr::i32_const [function] [call site] 00516
5 Self::new_insn [function] [call site] 00517
5 Instruction::I32Const [function] [call site] 00518
4 get_or_insert_with [function] [call site] 00520
4 ConstExpr::i64_const [function] [call site] 00521
5 Self::new_insn [function] [call site] 00522
5 Instruction::I64Const [function] [call site] 00523
4 get_or_insert_with [function] [call site] 00524
4 get_or_insert_with [function] [call site] 00525
4 get_or_insert_with [function] [call site] 00526
4 ConstExpr::v128_const [function] [call site] 00527
5 Self::new_insn [function] [call site] 00528
5 Instruction::V128Const [function] [call site] 00529
4 Instruction::GlobalGet [function] [call site] 00531
4 Instruction::GlobalSet [function] [call site] 00532
1 env_logger::try_init [function] [call site] 00536
1 std::str::from_utf8 [function] [call site] 00537
1 UnresolvedPackageGroup::parse [function] [call site] 00538
2 SourceMap::default [function] [call site] 00539
2 implAsRef::as_ref [function] [call site] 00540