[Bug 48569] New: Infinite drag & drop loop in WinSCP

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WineHQ Bugzilla

6 Feb 2020 6 Feb '20

12:56 p.m.

https://bugs.winehq.org/show_bug.cgi?id=48569

Bug ID: 48569 Summary: Infinite drag & drop loop in WinSCP Product: Wine Version: 5.0 Hardware: x86 OS: Linux Status: UNCONFIRMED Severity: normal Priority: P2 Component: -unknown Assignee: wine-bugs@winehq.org Reporter: mgruber_72@yahoo.de Distribution: ---

Created attachment 66395 --> https://bugs.winehq.org/attachment.cgi?id=66395 Wine command line output

I'm using Ubuntu 18.04 LTS and Wine 5.0 from the official WineHQ repository. The Wine prefix is clean.

Steps to reproduce:

1. Get the portable version of WinSCP (currently https://winscp.net/download/WinSCP-5.15.9-Portable.zip). 2. Extract it, execute WinSCP.exe and connect to a SFTP server. 3. In the remote server window try to drag & drop a remote sample file (like /tmp/test.txt) into a remote folder (like /tmp/testdir). 4. The Move path dialogue appears flickering in an indefinite loop until WinSCP crashes.

I've been in contact with the WinSCP developer Martin Přikryl about this issue. We've done quite extensive testing with various debug builds and he came to the conclusion, that Wine creates an infinite drag & drop loop after releasing the mouse button causing WinSCP to crash. This behaviour does not happen on native Windows.

Attached is the command line output of wine.

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WineHQ Bugzilla

6 Feb 6 Feb

1 p.m.

New subject: [Bug 48569] Infinite drag & drop loop in WinSCP

https://bugs.winehq.org/show_bug.cgi?id=48569

mgruber mgruber_72@yahoo.de changed:

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WineHQ Bugzilla

1:02 p.m.

New subject: [Bug 48569] Infinite drag & drop loop in WinSCP

https://bugs.winehq.org/show_bug.cgi?id=48569

--- Comment #1 from mgruber mgruber_72@yahoo.de --- I should add that this is not a regression introduced in Wine 5.0. I was also able to replicate this bug with the Wine 4.x from the stock Ubuntu Bionic repository.

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WineHQ Bugzilla

1:17 p.m.

New subject: [Bug 48569] Infinite drag & drop loop crashes WinSCP

https://bugs.winehq.org/show_bug.cgi?id=48569

mgruber mgruber_72@yahoo.de changed:

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WineHQ Bugzilla

7 Feb 7 Feb

8:54 p.m.

New subject: [Bug 48569] Infinite drag & drop loop crashes WinSCP

https://bugs.winehq.org/show_bug.cgi?id=48569

mgruber mgruber_72@yahoo.de changed:

What |Removed |Added ---------------------------------------------------------------------------- CC| |mgruber_72@yahoo.de

--- Comment #2 from mgruber mgruber_72@yahoo.de --- Created attachment 66405 --> https://bugs.winehq.org/attachment.cgi?id=66405 Winedebug.log with the last ~800 lines

I've attached a Winedebug.log. If a longer one is needed, let me know. I can also include a debug log of WinSCP.

Any feedback would be much appreciated.

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WineHQ Bugzilla

10 Feb 10 Feb

9:37 a.m.

New subject: [Bug 48569] Infinite drag & drop loop crashes WinSCP

https://bugs.winehq.org/show_bug.cgi?id=48569

mgruber mgruber_72@yahoo.de changed:

--- Comment #3 from mgruber mgruber_72@yahoo.de --- The problem persists on Wine-Devel 5.1 on Ubuntu 19.10 Eoan.

An endless amount of "Move to" listboxes is being created until WinSCP crashes.

I changed the affected component to user32, since this seems to be reponsible for listbox creation - correct the bug report if I'm wrong.

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WineHQ Bugzilla

2:38 p.m.

New subject: [Bug 48569] Infinite drag & drop loop crashes WinSCP

https://bugs.winehq.org/show_bug.cgi?id=48569

Martin Prikryl martin@winscp.net changed:

What |Removed |Added ---------------------------------------------------------------------------- CC| |martin@winscp.net

--- Comment #4 from Martin Prikryl martin@winscp.net --- I'm the author of WinSCP. Some more details: WinSCP detects that an item (a file) was dropped in IDropSource::QueryContinueDrag. Still within the method WinSCP shows a dialog box. In the dialog message loop, Wine calls IDropSource::QueryContinueDrag again (what does not happen on Windows). In the response to that WinSCP displays another dialog and this goes on until the stack overflows.

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WineHQ Bugzilla

3:32 p.m.

New subject: [Bug 48569] Infinite drag & drop loop crashes WinSCP

https://bugs.winehq.org/show_bug.cgi?id=48569

--- Comment #5 from mgruber mgruber_72@yahoo.de --- Could this be related to https://bugs.winehq.org/show_bug.cgi?id=38054?

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WineHQ Bugzilla

4:01 p.m.

New subject: [Bug 48569] Infinite drag & drop loop crashes WinSCP

https://bugs.winehq.org/show_bug.cgi?id=48569

mgruber mgruber_72@yahoo.de changed:

What |Removed |Added ---------------------------------------------------------------------------- Component|user32 |ole32

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WineHQ Bugzilla

6:56 p.m.

New subject: [Bug 48569] Infinite drag & drop loop crashes WinSCP

https://bugs.winehq.org/show_bug.cgi?id=48569

mgruber mgruber_72@yahoo.de changed:

What |Removed |Added ---------------------------------------------------------------------------- Hardware|x86 |x86-64

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WineHQ Bugzilla

8:19 p.m.

New subject: [Bug 48569] Infinite drag & drop loop crashes WinSCP

https://bugs.winehq.org/show_bug.cgi?id=48569

Roman Pišl rpisl@seznam.cz changed:

What |Removed |Added ---------------------------------------------------------------------------- CC| |rpisl@seznam.cz

--- Comment #6 from Roman Pišl rpisl@seznam.cz --- Created attachment 66427 --> https://bugs.winehq.org/attachment.cgi?id=66427 Fix for the crash

Attached patch fixes the issue and shows the cause. But I can't tell whether this is a correct solution for the issue.

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WineHQ Bugzilla

16 Feb 16 Feb

1:10 p.m.

New subject: [Bug 48569] Infinite drag & drop loop crashes WinSCP

https://bugs.winehq.org/show_bug.cgi?id=48569

--- Comment #7 from Roman Pišl rpisl@seznam.cz --- Patches sent for review: https://source.winehq.org/patches/data/178952 https://source.winehq.org/patches/data/178953

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WineHQ Bugzilla

19 Feb 19 Feb

10:08 a.m.

New subject: [Bug 48569] Infinite drag & drop loop crashes WinSCP

https://bugs.winehq.org/show_bug.cgi?id=48569

--- Comment #8 from Roman Pišl rpisl@seznam.cz --- Fix commited: https://source.winehq.org/git/wine.git/commit/808d8b87a040e4de44e2691d3a9e29...

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WineHQ Bugzilla

11:12 a.m.

New subject: [Bug 48569] Infinite drag & drop loop crashes WinSCP

https://bugs.winehq.org/show_bug.cgi?id=48569

--- Comment #9 from mgruber mgruber_72@yahoo.de --- Excellent, thank you. It's only a shame that the patch missed Wine 5.2 by just 3 days, so I guess it will reside in Staging for a while until the next Dev release. Or are there chances this might trickle down directly into a maintenance release of 5.0?

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WineHQ Bugzilla

12:32 p.m.

New subject: [Bug 48569] Infinite drag & drop loop crashes WinSCP

https://bugs.winehq.org/show_bug.cgi?id=48569

--- Comment #10 from Roman Pišl rpisl@seznam.cz --- It was commited directly to Wine (into devel, not staging) so it will be included in Wine 5.3 (in ~2 weeks).

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WineHQ Bugzilla

20 Feb 20 Feb

2:06 p.m.

New subject: [Bug 48569] Infinite drag & drop loop crashes WinSCP

https://bugs.winehq.org/show_bug.cgi?id=48569

Fabian Maurer dark.shadow4@web.de changed:

--- Comment #11 from Fabian Maurer dark.shadow4@web.de --- Marking fixed as of comment 8.

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WineHQ Bugzilla

28 Feb 28 Feb

7:56 p.m.

New subject: [Bug 48569] Infinite drag & drop loop crashes WinSCP

https://bugs.winehq.org/show_bug.cgi?id=48569

Alexandre Julliard julliard@winehq.org changed:

What |Removed |Added ---------------------------------------------------------------------------- Status|RESOLVED |CLOSED

--- Comment #12 from Alexandre Julliard julliard@winehq.org --- Closing bugs fixed in 5.3.

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WineHQ Bugzilla

21 May 21 May

10:03 p.m.

New subject: [Bug 48569] Infinite drag & drop loop crashes WinSCP

https://bugs.winehq.org/show_bug.cgi?id=48569

Michael Stefaniuc mstefani@winehq.org changed:

What |Removed |Added ---------------------------------------------------------------------------- Target Milestone|--- |5.0.x

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WineHQ Bugzilla

2 Jun 2 Jun

10:15 p.m.

New subject: [Bug 48569] Infinite drag & drop loop crashes WinSCP

https://bugs.winehq.org/show_bug.cgi?id=48569

Michael Stefaniuc mstefani@winehq.org changed:

What |Removed |Added ---------------------------------------------------------------------------- Target Milestone|5.0.x |---

--- Comment #13 from Michael Stefaniuc mstefani@winehq.org --- Removing the 5.0.x milestone from bug fixes included in 5.0.1.

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