Fuzz introspector: fuzzer
For issues and ideas: https://github.com/ossf/fuzz-introspector/issues

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity Unique Reachable Complexities Unique Reachable Functions All non-covered Complexity All Reachable Complexity Function Name Function Callsite Blocked Branch
0 0 None 0 30 EvaluateExpression call site: 00053 /src/wasm3/source/m3_env.c:287
0 0 None 0 2 m3_NewRuntime call site: 00019 /src/wasm3/source/m3_env.c:186
0 0 None 0 2 ParseSection_Custom call site: 00000 /src/wasm3/source/m3_parse.c:539
0 0 None 0 0 ResizeMemory call site: 00048 /src/wasm3/source/m3_env.c:364

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 m3_NewEnvironment [function] [call site] 00001
2 m3_Malloc_Impl [function] [call site] 00002
3 calloc [call site] 00003
2 AllocFuncType [function] [call site] 00004
3 m3_Malloc_Impl [function] [call site] 00005
2 Environment_AddFuncType [function] [call site] 00006
3 AreFuncTypesEqual [function] [call site] 00007
4 memcmp [call site] 00008
3 m3_Free_Impl [function] [call site] 00009
2 m3_FreeEnvironment [function] [call site] 00010
3 Environment_Release [function] [call site] 00011
4 m3_Free_Impl [function] [call site] 00012
4 FreeCodePages [function] [call site] 00013
5 m3_Free_Impl [function] [call site] 00014
3 m3_Free_Impl [function] [call site] 00015
1 m3_NewRuntime [function] [call site] 00016
2 m3_Malloc_Impl [function] [call site] 00017
2 m3_ResetErrorInfo [function] [call site] 00018
2 m3_Malloc_Impl [function] [call site] 00019
2 m3_Free_Impl [function] [call site] 00020
1 m3_ParseModule [function] [call site] 00021
2 m3_Malloc_Impl [function] [call site] 00022
2 Read_u32 [function] [call site] 00023
2 Read_u32 [function] [call site] 00024
2 ReadLEB_u7 [function] [call site] 00025
3 ReadLebUnsigned [function] [call site] 00026
2 ReadLEB_u32 [function] [call site] 00027
3 ReadLebUnsigned [function] [call site] 00028
2 ParseModuleSection [function] [call site] 00029
2 m3_FreeModule [function] [call site] 00030
3 Module_FreeFunctions [function] [call site] 00031
4 Function_Release [function] [call site] 00032
5 m3_Free_Impl [function] [call site] 00033
5 FreeImportInfo [function] [call site] 00034
6 m3_Free_Impl [function] [call site] 00035
5 m3_Free_Impl [function] [call site] 00036
5 m3_Free_Impl [function] [call site] 00037
3 m3_Free_Impl [function] [call site] 00038
3 m3_Free_Impl [function] [call site] 00039
3 m3_Free_Impl [function] [call site] 00040
3 m3_Free_Impl [function] [call site] 00041
3 m3_Free_Impl [function] [call site] 00042
3 m3_Free_Impl [function] [call site] 00043
3 m3_Free_Impl [function] [call site] 00044
3 FreeImportInfo [function] [call site] 00045
1 m3_LoadModule [function] [call site] 00046
2 InitMemory [function] [call site] 00047
3 ResizeMemory [function] [call site] 00048
4 m3_Realloc_Impl [function] [call site] 00049
5 realloc [call site] 00050
2 InitGlobals [function] [call site] 00051
3 EvaluateExpression [function] [call site] 00052
4 AcquireCodePage [function] [call site] 00053
5 AcquireCodePageWithCapacity [function] [call site] 00054
6 RemoveCodePageOfCapacity [function] [call site] 00055
7 NumFreeLines [function] [call site] 00056
6 Environment_AcquireCodePage [function] [call site] 00057
7 RemoveCodePageOfCapacity [function] [call site] 00058
6 NewCodePage [function] [call site] 00059
7 m3_Malloc_Impl [function] [call site] 00060
4 GetPagePC [function] [call site] 00061
4 CompileBlock [function] [call site] 00062
5 GetPagePC [function] [call site] 00063
5 GetFuncTypeNumParams [function] [call site] 00064
5 GetFuncTypeParamType [function] [call site] 00065
5 PopType [function] [call site] 00066
6 GetStackTopType [function] [call site] 00067
7 GetStackTypeFromTop [function] [call site] 00068
6 Pop [function] [call site] 00069
7 IsRegisterSlotAlias [function] [call site] 00070
7 IsFpRegisterSlotAlias [function] [call site] 00071
7 DeallocateRegister [function] [call site] 00072
7 DeallocateSlot [function] [call site] 00073
8 GetTypeNumSlots [function] [call site] 00074
9 Is64BitType [function] [call site] 00075
7 IsStackPolymorphic [function] [call site] 00076
5 IsStackPolymorphic [function] [call site] 00077
5 PushBlockResults [function] [call site] 00078
6 GetFuncTypeNumResults [function] [call site] 00079
6 GetFuncTypeResultType [function] [call site] 00080
6 IsFpType [function] [call site] 00081
6 PushRegister [function] [call site] 00082
7 IsFpType [function] [call site] 00083
7 Push [function] [call site] 00084
8 IsRegisterSlotAlias [function] [call site] 00085
8 IsFpRegisterSlotAlias [function] [call site] 00086
8 AllocateRegister [function] [call site] 00087
6 PushAllocatedSlot [function] [call site] 00088
7 _PushAllocatedSlotAndEmit [function] [call site] 00089
8 AllocateSlots [function] [call site] 00090
9 AllocateSlotsWithinRange [function] [call site] 00091
10 GetTypeNumSlots [function] [call site] 00092
10 AlignSlotToType [function] [call site] 00093
11 GetTypeNumSlots [function] [call site] 00094
10 MarkSlotsAllocated [function] [call site] 00095
11 MarkSlotAllocated [function] [call site] 00096
12 TouchSlot [function] [call site] 00097
8 Push [function] [call site] 00098
8 EmitSlotOffset [function] [call site] 00099
9 EmitWord32 [function] [call site] 00100
5 GetFuncTypeNumResults [function] [call site] 00101
5 Pop [function] [call site] 00102
5 CompileBlockStatements [function] [call site] 00103
6 Read_opcode [function] [call site] 00104
6 GetOpInfo [function] [call site] 00105
6 m3Error [function] [call site] 00106
7 vsnprintf [call site] 00107
6 Compile_Operator [function] [call site] 00108
7 GetOpInfo [function] [call site] 00109
7 GetStackTopType [function] [call site] 00110
7 IsFpType [function] [call site] 00111
7 PreserveRegisterIfOccupied [function] [call site] 00112
8 IsFpType [function] [call site] 00113
8 IsRegisterAllocated [function] [call site] 00114
8 GetRegisterStackIndex [function] [call site] 00115
8 DeallocateRegister [function] [call site] 00116
8 GetStackTypeFromBottom [function] [call site] 00117
8 AllocateSlots [function] [call site] 00118
8 EmitOp [function] [call site] 00119
9 EnsureCodePageNumLines [function] [call site] 00120
10 NumFreeLines [function] [call site] 00121
10 AcquireCodePageWithCapacity [function] [call site] 00122
10 EmitWord_impl [function] [call site] 00123
10 op_Branch [function] [call site] 00124
10 GetPagePC [function] [call site] 00125
10 ReleaseCodePage [function] [call site] 00126
11 ReleaseCodePageNoTrack [function] [call site] 00127
12 NumFreeLines [function] [call site] 00128
12 PushCodePage [function] [call site] 00129
9 EmitWord_impl [function] [call site] 00130
8 EmitSlotOffset [function] [call site] 00131
7 IsStackTopInRegister [function] [call site] 00132
8 GetStackTopIndex [function] [call site] 00133
7 PreserveRegisterIfOccupied [function] [call site] 00134
7 IsStackTopInRegister [function] [call site] 00135
7 IsStackTopMinus1InRegister [function] [call site] 00136
8 GetStackTopIndex [function] [call site] 00137
7 IsStackTopMinus1InRegister [function] [call site] 00138
7 PreserveRegisterIfOccupied [function] [call site] 00139
7 EmitOp [function] [call site] 00140
7 EmitSlotNumOfStackTopAndPop [function] [call site] 00141
8 IsStackTopInSlot [function] [call site] 00142
9 IsStackTopInRegister [function] [call site] 00143
8 GetStackTopSlotNumber [function] [call site] 00144
9 GetStackTopIndex [function] [call site] 00145
8 Pop [function] [call site] 00146
7 EmitSlotNumOfStackTopAndPop [function] [call site] 00147
7 PushRegister [function] [call site] 00148
7 m3Error [function] [call site] 00149
5 GetFuncTypeParamType [function] [call site] 00150
5 GetSlotForStackIndex [function] [call site] 00151
5 Push [function] [call site] 00152
5 MarkSlotsAllocatedByType [function] [call site] 00153
6 GetTypeNumSlots [function] [call site] 00154
6 MarkSlotsAllocated [function] [call site] 00155
5 ValidateBlockEnd [function] [call site] 00156
5 IsStackPolymorphic [function] [call site] 00157
5 ResolveBlockResults [function] [call site] 00158
6 GetFuncTypeNumParams [function] [call site] 00159
6 GetFuncTypeNumResults [function] [call site] 00160
6 GetNumBlockValuesOnStack [function] [call site] 00161
6 GetStackTopIndex [function] [call site] 00162
6 GetStackTopType [function] [call site] 00163
6 IsFpType [function] [call site] 00164
6 CopyStackTopToRegister [function] [call site] 00165
7 IsStackTopInSlot [function] [call site] 00166
7 GetStackTopType [function] [call site] 00167
7 PreserveRegisterIfOccupied [function] [call site] 00168
7 EmitOp [function] [call site] 00169
7 GetStackTopSlotNumber [function] [call site] 00170
6 AlignSlotToType [function] [call site] 00171
6 CopyStackSlotsR [function] [call site] 00172
7 GetSlotForStackIndex [function] [call site] 00173
7 GetStackTypeFromBottom [function] [call site] 00174
7 GetTypeNumSlots [function] [call site] 00175
7 GetSlotForStackIndex [function] [call site] 00176
7 GetSlotForStackIndex [function] [call site] 00177
7 GetExtraSlotForStackIndex [function] [call site] 00178
8 GetSlotForStackIndex [function] [call site] 00179
8 GetStackTypeFromBottom [function] [call site] 00180
7 CopyStackIndexToSlot [function] [call site] 00181
8 GetStackTypeFromBottom [function] [call site] 00182
8 IsStackIndexInRegister [function] [call site] 00183
8 Is64BitType [function] [call site] 00184
8 EmitOp [function] [call site] 00185
8 EmitSlotOffset [function] [call site] 00186
8 GetSlotForStackIndex [function] [call site] 00187
8 EmitSlotOffset [function] [call site] 00188
7 GetTypeNumSlots [function] [call site] 00189
7 TouchSlot [function] [call site] 00190
7 CopyStackIndexToSlot [function] [call site] 00191
7 CopyStackSlotsR [function] [call site] 00192
5 UnwindBlockStack [function] [call site] 00193
6 Pop [function] [call site] 00194
5 PushBlockResults [function] [call site] 00195
5 PatchBranches [function] [call site] 00196
6 GetPC [function] [call site] 00197
7 GetPagePC [function] [call site] 00198
4 RunCode [function] [call site] 00199
4 SizeOfType [function] [call site] 00200
4 ReleaseCodePage [function] [call site] 00201
4 Runtime_Release [function] [call site] 00202
5 ForEachModule [function] [call site] 00203
5 Environment_ReleaseCodePages [function] [call site] 00204
5 Environment_ReleaseCodePages [function] [call site] 00205
5 m3_Free_Impl [function] [call site] 00206
5 m3_Free_Impl [function] [call site] 00207
2 InitDataSegments [function] [call site] 00208
3 EvaluateExpression [function] [call site] 00209
2 InitElements [function] [call site] 00210
3 ReadLEB_u32 [function] [call site] 00211
3 EvaluateExpression [function] [call site] 00212
3 ReadLEB_u32 [function] [call site] 00213
3 m3_Realloc_Impl [function] [call site] 00214
3 ReadLEB_u32 [function] [call site] 00215
1 m3_FindFunction [function] [call site] 00216
2 ForEachModule [function] [call site] 00217
2 CompileFunction [function] [call site] 00218
3 ReadLEB_u32 [function] [call site] 00219
3 AcquireCompilationCodePage [function] [call site] 00220
4 AcquireCodePage [function] [call site] 00221
3 GetPagePC [function] [call site] 00222
3 GetFunctionNumReturns [function] [call site] 00223
3 GetFunctionNumArgs [function] [call site] 00224
3 MarkSlotAllocated [function] [call site] 00225
3 GetFunctionArgType [function] [call site] 00226
4 GetFunctionNumArgs [function] [call site] 00227
3 PushAllocatedSlot [function] [call site] 00228
3 CompileLocals [function] [call site] 00229
4 ReadLEB_u32 [function] [call site] 00230
4 ReadLEB_u32 [function] [call site] 00231
4 ReadLEB_i7 [function] [call site] 00232
5 ReadLebSigned [function] [call site] 00233
4 NormalizeType [function] [call site] 00234
4 PushAllocatedSlot [function] [call site] 00235
3 GetMaxUsedSlotPlusOne [function] [call site] 00236
4 IsSlotAllocated [function] [call site] 00237
3 ReserveConstants [function] [call site] 00238
4 GetTypeNumSlots [function] [call site] 00239
4 AlignSlotToType [function] [call site] 00240
3 EmitOp [function] [call site] 00241
3 op_Entry [function] [call site] 00242
3 EmitPointer [function] [call site] 00243
4 GetPagePC [function] [call site] 00244
4 EmitWord_impl [function] [call site] 00245
3 CompileBlockStatements [function] [call site] 00246
3 m3_CopyMem [function] [call site] 00247
4 m3_Malloc_Impl [function] [call site] 00248
3 ReleaseCompilationCodePage [function] [call site] 00249
4 ReleaseCodePage [function] [call site] 00250
2 m3Error [function] [call site] 00251
1 m3_FreeModule [function] [call site] 00252
1 m3_FreeRuntime [function] [call site] 00253
2 m3_PrintProfilerInfo [function] [call site] 00254
2 Runtime_Release [function] [call site] 00255
2 m3_Free_Impl [function] [call site] 00256