Invalid access to memory - System::FillChar

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 6.5.4

Error message:
Error reading ActionImageList144.PngImages: The parameter is incorrect.


Stack trace:
(001371E6) System::FillChar
(000B140F) ntdll.dll
(0007ADEA) ntdll.dll.KiUserExceptionDispatcher
(005B5725) Vcl::Imaging::Pngimage::TChunkIHDR::LoadFromStream
(005B9D5C) Vcl::Imaging::Pngimage::TPngImage::LoadFromStream
(0038059A) Vcl::Graphics::TGraphic::ReadData
(00380358) Vcl::Graphics::TGraphic::DefineProperties
(001F71FE) System::Classes::TReader::ReadProperty
(001F638F) System::Classes::TReader::ReadCollection
(001F76E5) System::Classes::TReader::ReadPropValue
(001F71E5) System::Classes::TReader::ReadProperty
(001F6B21) System::Classes::TReader::ReadDataInner
(001F6B01) System::Classes::TReader::ReadData
(00202AA5) System::Classes::TComponent::ReadState
(001F6B97) System::Classes::TReader::ReadDataInner
(001F6AD0) System::Classes::TReader::ReadData
(00202AA5) System::Classes::TComponent::ReadState
(004A678D) Vcl::Forms::TCustomForm::ReadState
(00DB6FA8) TLoginDialog::ReadState
(001F1AF6) System::Classes::TStream::ReadComponent
(001E4851) System::Classes::_17096
(001EA8E9) System::Classes::_17224
(001EA977) System::Classes::InitInheritedComponent
(004A59C8) Vcl::Forms::TCustomForm::TCustomForm
(00005ACA) Vcl::Forms::TForm::TForm
(00DABCF2) TLoginDialog::TLoginDialog
(004F6CA8) Pastools::Construct
(00121243) GetLoginData
(000CE441) TTerminalManager::NewSession
(0001D0FE) TCustomScpExplorerForm::NewSession
(0001D147) TCustomScpExplorerForm::NewTab
(0005B9AE) TScpCommanderForm::NewTab
(00025A27) TCustomScpExplorerForm::SessionTabSwitched
(00025AA4) TCustomScpExplorerForm::SessionsPageControlChange
(00402209) Vcl::Comctrls::TCustomTabControl::Change
(003A356D) Vcl::Controls::TWinControl::WndProc
(0039DFF8) Vcl::Controls::TControl::Perform
(003A36C7) Vcl::Controls::_17122
(0039E3C2) Vcl::Controls::TControl::WndProc
(003A356D) Vcl::Controls::TWinControl::WndProc
(004A77B4) Vcl::Forms::TCustomForm::WndProc
(00E06D03) Vclcommon::C4884_0
(003A2A78) Vcl::Controls::TWinControl::MainWndProc
(00204C90) System::Classes::_18364
(00038E91) USER32.dll
(00027008) USER32.dll
(00026AAB) USER32.dll
(00033327) USER32.dll
(0007ADC4) ntdll.dll.KiUserCallbackDispatcher
(0003F853) USER32.dll
(000267D1) USER32.dll.SendMessageW
(0009BC76) COMCTL32.DLL
(000B8946) COMCTL32.DLL
(00056E9B) COMCTL32.DLL
(00052C51) COMCTL32.DLL
(00055265) COMCTL32.DLL
(00038E91) USER32.dll
(00027008) USER32.dll
(00026775) USER32.dll.CallWindowProcW
(003A3675) Vcl::Controls::TWinControl::DefaultHandler
(00BB298A) TThemePageControl::Dispatch
(003A356D) Vcl::Controls::TWinControl::WndProc
(003A2A78) Vcl::Controls::TWinControl::MainWndProc
(00204C90) System::Classes::_18364
(00038E91) USER32.dll
(00027008) USER32.dll
(00026775) USER32.dll.CallWindowProcW
(0053954B) Dragdrop::TDragDrop::WndMethod
(

I know how to reproduce the problem or the problem happens frequently enough. I wish to be contacted by the WinSCP team to help resolving the problem.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 6.5.3

Error message:
Error reading ImageList192.PngImages: The parameter is incorrect.


Stack trace:
(001370CE) System::FillChar
(0008818F) ntdll.dll
(00074711) ntdll.dll.KiUserExceptionDispatcher
(005B55F9) Vcl::Imaging::Pngimage::TChunkIHDR::LoadFromStream
(005B9C30) Vcl::Imaging::Pngimage::TPngImage::LoadFromStream
(00380482) Vcl::Graphics::TGraphic::ReadData
(00380240) Vcl::Graphics::TGraphic::DefineProperties
(001F70E6) System::Classes::TReader::ReadProperty
(001F6277) System::Classes::TReader::ReadCollection
(001F75CD) System::Classes::TReader::ReadPropValue
(001F70CD) System::Classes::TReader::ReadProperty
(001F6A09) System::Classes::TReader::ReadDataInner
(001F69E9) System::Classes::TReader::ReadData
(0020298D) System::Classes::TComponent::ReadState
(001F6A7F) System::Classes::TReader::ReadDataInner
(001F69B8) System::Classes::TReader::ReadData
(0020298D) System::Classes::TComponent::ReadState
(004A6675) Vcl::Forms::TCustomForm::ReadState
(00DDC114) TProgressForm::ReadState
(001F19DE) System::Classes::TStream::ReadComponent
(001E4739) System::Classes::_17096
(001EA7D1) System::Classes::_17224
(001EA85F) System::Classes::InitInheritedComponent
(004A58B0) Vcl::Forms::TCustomForm::TCustomForm
(00005ACA) Vcl::Forms::TForm::TForm
(00DD5B1F) TProgressForm::TProgressForm
(0000BB40) TCustomScpExplorerForm::CreateProgressForm
(0000BCE4) TCustomScpExplorerForm::FileOperationProgress
(0005E9A2) TScpCommanderForm::FileOperationProgress
(0000C054) TCustomScpExplorerForm::OperationProgress
(000CC926) TTerminalManager::OperationProgress
(00C043C4) TFileOperationProgressType::DoProgress
(00D3BFAB) TTerminal::OperationStart
(00D3BF21) TTerminal::OperationStart
(00D3C0CA) TTerminal::ProcessFiles
(00D3F632) TTerminal::CalculateFilesSize
(00D51B67) TTerminal::CopyToLocal
(000123AD) TCustomScpExplorerForm::ExecuteCopyMoveFileOperation
(00012E9C) TCustomScpExplorerForm::ExecuteFileOperation
(00013118) TCustomScpExplorerForm::ExecuteFileOperation
(000132D7) TCustomScpExplorerForm::ExecuteFileOperationCommand
(0001345E) TCustomScpExplorerForm::ExecuteCopyOperationCommand
(00051A8B) TNonVisualDataModule::ExplorerActionsExecute
(00221750) System::Actions::TContainedActionList::ExecuteAction
(0038A959) Vcl::Actnlist::TCustomAction::Execute
(00204B78) System::Classes::_18364
(00040529) USER32.dll
(00036C15) USER32.dll
(000354BB) USER32.dll
(00034FEB) USER32.dll.DispatchMessageW

(001370CE) System::FillChar

(001F6EEF) System::Classes::_17827
(001F712C) System::Classes::TReader::ReadProperty
(001F6277) System::Classes::TReader::ReadCollection
(001F75CD) System::Classes::TReader::ReadPropValue
(001F70CD) System::Classes::TReader::ReadProperty
(001F6A09) System::Classes::TReader::ReadDataInner
(001F69E9) System::Classes::TReader::ReadData
(0020298D) System::Classes::TComponent::ReadState
(001F6A7F) System::Classes::TReader::ReadDataInner%

The problem happens rarely. I cannot reproduce it.

@atharvadeshmukh26: Thanks for your report.
I have sent you an email with a debug version of WinSCP to the address you have used to register on this forum.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 6.5.2

Error message:
Error reading ImageList192.PngImages: Parâmetro incorreto.


Rastreamento de pilha:
(001370CE) System::FillChar
(0008822F) ntdll.dll
(00074711) ntdll.dll.KiUserExceptionDispatcher
(005B55F5) Vcl::Imaging::Pngimage::TChunkIHDR::LoadFromStream
(005B9C2C) Vcl::Imaging::Pngimage::TPngImage::LoadFromStream
(00380482) Vcl::Graphics::TGraphic::ReadData
(00380240) Vcl::Graphics::TGraphic::DefineProperties
(001F70E6) System::Classes::TReader::ReadProperty
(001F6277) System::Classes::TReader::ReadCollection
(001F75CD) System::Classes::TReader::ReadPropValue
(001F70CD) System::Classes::TReader::ReadProperty
(001F6A09) System::Classes::TReader::ReadDataInner
(001F69E9) System::Classes::TReader::ReadData
(0020298D) System::Classes::TComponent::ReadState
(001F6A7F) System::Classes::TReader::ReadDataInner
(001F69B8) System::Classes::TReader::ReadData
(0020298D) System::Classes::TComponent::ReadState
(004A6675) Vcl::Forms::TCustomForm::ReadState
(00DDB688) TProgressForm::ReadState
(001F19DE) System::Classes::TStream::ReadComponent
(001E4739) System::Classes::_17096
(001EA7D1) System::Classes::_17224
(001EA85F) System::Classes::InitInheritedComponent
(004A58B0) Vcl::Forms::TCustomForm::TCustomForm
(00005ACA) Vcl::Forms::TForm::TForm
(00DD5093) TProgressForm::TProgressForm
(0000BB40) TCustomScpExplorerForm::CreateProgressForm
(0000BCE4) TCustomScpExplorerForm::FileOperationProgress
(0005E9A2) TScpCommanderForm::FileOperationProgress
(0000C054) TCustomScpExplorerForm::OperationProgress
(000CC926) TTerminalManager::OperationProgress
(00C03960) TFileOperationProgressType::DoProgress
(00D3B547) TTerminal::OperationStart
(00D3B4BD) TTerminal::OperationStart
(00D3B666) TTerminal::ProcessFiles
(00D3EBCE) TTerminal::CalculateFilesSize
(00D51103) TTerminal::CopyToLocal
(000123AD) TCustomScpExplorerForm::ExecuteCopyMoveFileOperation
(00012E9C) TCustomScpExplorerForm::ExecuteFileOperation
(00013118) TCustomScpExplorerForm::ExecuteFileOperation
(000132D7) TCustomScpExplorerForm::ExecuteFileOperationCommand
(0001345E) TCustomScpExplorerForm::ExecuteCopyOperationCommand
(00051A37) TNonVisualDataModule::ExplorerActionsExecute
(00221750) System::Actions::TContainedActionList::ExecuteAction
(0038A959) Vcl::Actnlist::TCustomAction::Execute
(00204B78) System::Classes::_18364
(00040C09) USER32.dll
(000372C5) USER32.dll
(00035B6B) USER32.dll
(0003569B) USER32.dll.DispatchMessageW

(001370CE) System::FillChar

(001F6EEF) System::Classes::_17827
(001F712C) System::Classes::TReader::ReadProperty
(001F6277) System::Classes::TReader::ReadCollection
(001F75CD) System::Classes::TReader::ReadPropValue
(001F70CD) System::Classes::TReader::ReadProperty
(001F6A09) System::Classes::TReader::ReadDataInner
(001F69E9) System::Classes::TReader::ReadData
(0020298D) System::Classes::TComponent::ReadState
(001F6A7F) System::Classes::TReader::ReadData

I know how to reproduce the problem or the problem happens frequently enough. I wish to be contacted by the WinSCP team to help resolving the problem.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 6.5.4

Error message:
Error reading BookmarkImageList192.PngImages: The parameter is incorrect.


Stack trace:
(001371E6) System::FillChar
(000B332F) ntdll.dll
(0007A56A) ntdll.dll.KiUserExceptionDispatcher
(005B5725) Vcl::Imaging::Pngimage::TChunkIHDR::LoadFromStream
(005B9D5C) Vcl::Imaging::Pngimage::TPngImage::LoadFromStream
(0038059A) Vcl::Graphics::TGraphic::ReadData
(00380358) Vcl::Graphics::TGraphic::DefineProperties
(001F71FE) System::Classes::TReader::ReadProperty
(001F638F) System::Classes::TReader::ReadCollection
(001F76E5) System::Classes::TReader::ReadPropValue
(001F71E5) System::Classes::TReader::ReadProperty
(001F6B21) System::Classes::TReader::ReadDataInner
(001F6B01) System::Classes::TReader::ReadData
(00202AA5) System::Classes::TComponent::ReadState
(001F6B97) System::Classes::TReader::ReadDataInner
(001F6AD0) System::Classes::TReader::ReadData
(00202AA5) System::Classes::TComponent::ReadState
(004A678D) Vcl::Forms::TCustomForm::ReadState
(00DAB764) TLocationProfilesDialog::ReadState
(001F1AF6) System::Classes::TStream::ReadComponent
(001E4851) System::Classes::_17096
(001EA8E9) System::Classes::_17224
(001EA977) System::Classes::InitInheritedComponent
(004A59C8) Vcl::Forms::TCustomForm::TCustomForm
(00005ACA) Vcl::Forms::TForm::TForm
(00DA775D) TLocationProfilesDialog::TLocationProfilesDialog
(00DA6C98) LocationProfilesDialog
(00060A4C) TScpCommanderForm::DoOpenDirectoryDialog
(0001AE77) TCustomScpExplorerForm::OpenDirectory
(0039DFF8) Vcl::Controls::TControl::Perform
(003A2D9D) Vcl::Controls::TWinControl::IsControlMouseMsg
(003A2A78) Vcl::Controls::TWinControl::MainWndProc
(00204C90) System::Classes::_18364
(00038981) USER32.dll
(00026AC8) USER32.dll
(00025F55) USER32.dll
(00025ABB) USER32.dll.DispatchMessageW

(001371E6) System::FillChar

(001F7007) System::Classes::_17827
(001F7244) System::Classes::TReader::ReadProperty
(001F638F) System::Classes::TReader::ReadCollection
(001F76E5) System::Classes::TReader::ReadPropValue
(001F71E5) System::Classes::TReader::ReadProperty
(001F6B21) System::Classes::TReader::ReadDataInner
(001F6B01) System::Classes::TReader::ReadData
(00202AA5) System::Classes::TComponent::ReadState
(001F6B97) System::Classes::TReader::ReadDataInner
(001F6AD0) System::Classes::TReader::ReadData
(00202AA5) System::Classes::TComponent::ReadState
(004A678D) Vcl::Forms::TCustomForm::ReadState
(00DAB764) TLocationProfilesDialog::ReadState
(001F1AF6) System::Classes::TStream::ReadComponent
(001E4851) System::Classes::_17096
(001EA8E9) System::Classes::_17224
(001EA977) System::Classes::InitInheritedComponent
(004A59C8) Vcl::Forms::TCustomForm::TCustomForm
(00005ACA) Vcl::Forms::TForm::TForm
(00DA775D) TLocationProfilesDialog::TLocationProfilesDialog
(00DA6C98) LocationProfilesDialog
(00060A4C) TScpCommanderForm::DoOpenDirectory

I know how to reproduce the problem or the problem happens frequently enough. I wish to be contacted by the WinSCP team to help resolving the problem.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 6.5.4

Error message:
Error reading ImageList120.PngImages: The parameter is incorrect.


Stack trace:
(001371E6) System::FillChar
(000B332F) ntdll.dll
(0007A56A) ntdll.dll.KiUserExceptionDispatcher
(005B5725) Vcl::Imaging::Pngimage::TChunkIHDR::LoadFromStream
(005B9D5C) Vcl::Imaging::Pngimage::TPngImage::LoadFromStream
(0038059A) Vcl::Graphics::TGraphic::ReadData
(00380358) Vcl::Graphics::TGraphic::DefineProperties
(001F71FE) System::Classes::TReader::ReadProperty
(001F638F) System::Classes::TReader::ReadCollection
(001F76E5) System::Classes::TReader::ReadPropValue
(001F71E5) System::Classes::TReader::ReadProperty
(001F6B21) System::Classes::TReader::ReadDataInner
(001F6B01) System::Classes::TReader::ReadData
(00202AA5) System::Classes::TComponent::ReadState
(001F6B97) System::Classes::TReader::ReadDataInner
(001F6AD0) System::Classes::TReader::ReadData
(00202AA5) System::Classes::TComponent::ReadState
(004A678D) Vcl::Forms::TCustomForm::ReadState
(00DDD6D0) TProgressForm::ReadState
(001F1AF6) System::Classes::TStream::ReadComponent
(001E4851) System::Classes::_17096
(001EA8E9) System::Classes::_17224
(001EA977) System::Classes::InitInheritedComponent
(004A59C8) Vcl::Forms::TCustomForm::TCustomForm
(00005ACA) Vcl::Forms::TForm::TForm
(00DD70DB) TProgressForm::TProgressForm
(0000BB40) TCustomScpExplorerForm::CreateProgressForm
(0000BCE4) TCustomScpExplorerForm::FileOperationProgress
(0005EA5E) TScpCommanderForm::FileOperationProgress
(0000C054) TCustomScpExplorerForm::OperationProgress
(000CC9E2) TTerminalManager::OperationProgress
(00C05980) TFileOperationProgressType::DoProgress
(00D3D567) TTerminal::OperationStart
(00D3D4DD) TTerminal::OperationStart
(00D3D686) TTerminal::ProcessFiles
(00D40BEE) TTerminal::CalculateFilesSize
(00D53123) TTerminal::CopyToLocal
(0001606F) TCustomScpExplorerForm::TemporarilyDownloadFiles
(00016C75) TCustomScpExplorerForm::ExecuteFile
(00017396) TCustomScpExplorerForm::ExecuteFile
(0001EB06) TCustomScpExplorerForm::DoDirViewExecFile
(0001E966) TCustomScpExplorerForm::DirViewExecFile
(00509B89) Customdirview::TCustomDirView::DoExecFile
(0050762A) Customdirview::TCustomDirView::DoExecute
(0050825D) Customdirview::TCustomDirView::WMLButtonDblClk
(003A356D) Vcl::Controls::TWinControl::WndProc
(0041B07F) Vcl::Comctrls::TCustomListView::WndProc
(00204C90) System::Classes::_18364
(00038981) USER32.dll
(00026AC8) USER32.dll
(00026235) USER32.dll.CallWindowProcW
(000829E4) COMCTL32.DLL
(00082A83) COMCTL32.DLL
(000827FC) COMCTL32.DLL
(00038981) USER32.dll
(00026AC8) USER32.dll
(00026235) USER32.dll.CallWindowProcW
(0053954B) Dragdrop::TDragDrop::WndMethod
(00204C90) System::Classes::_18364
(00038981) USER32.dll
(00026AC8) USER32.dll
(00025F55) USER32.dll
(00025ABB) USER32.dll.DispatchMessageW

(001371E6) System::FillChar

(001F7007) System::Classes::_17827
(001F7244) System::Classes:%

I know how to reproduce the problem or the problem happens frequently enough. I wish to be contacted by the WinSCP team to help resolving the problem.

@elieudodejesus, @nyomanpradipa9 and @kikooki155, Thanks for your reports.
I have sent you an email with a debug version of WinSCP to the address you have used to register on this forum.