Bug 429752

Summary:	Resizing maximized window crashes kwin wayland
Product:	[Plasma] kwin	Reporter:	Schlaefer <openmail+kde>
Component:	decorations	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	RESOLVED FIXED
Severity:	normal	CC:	xaver.hugl
Priority:	NOR
Version First Reported In:	5.20.3
Target Milestone:	---
Platform:	Arch Linux
OS:	Linux
Latest Commit:	https://invent.kde.org/plasma/kwin/-/commit/459aa66d8e07417a6a54bba2dda7b4fd188bd762	Version Fixed/Implemented In:
Sentry Crash Report:

Description Schlaefer 2020-11-28 09:44:23 UTC

SUMMARY

Resizing a maximized window crashes kwin wayland.


STEPS TO REPRODUCE

1. Start plasma in a wayland session
2. Activate "Allow resizing maximized windows from window edges" in Settings app > Window Decoration > Breeze > General Tab
3. Maximize an new window with the titlebar button (e.g. Dolphin)
4. Try to resize that window by dragging the resize handle away from the screen edge with the mouse pointer.

OBSERVED RESULT

Kwin immediately crashes:

Process 15507 (kwin_wayland) of user 1000 dumped core.
Stack trace of thread 15507:
#0  0x00007f65effd7615 n/a (n/a + 0x0)

EXPECTED RESULT

The window should be resized without crash.


SOFTWARE/OS VERSIONS
Operating System: EndeavourOS
KDE Plasma Version: 5.20.3
KDE Frameworks Version: 5.76.0
Qt Version: 5.15.2
Kernel Version: 5.9.10-zen1-1-zen

ADDITIONAL INFORMATION

I see this issue on my actual machine and I'm able to reproduce in VirtualBox on a fresh installation.

Comment 1 Zamundaaa 2021-01-31 23:26:52 UTC

This was fixed with https://invent.kde.org/plasma/kwin/-/merge_requests/481