https://bugs.kde.org/show_bug.cgi?id=485937
Bug ID: 485937
Summary: polkit-kde-authentication-agent-1 crashes, if QT style
is overridden (QT_STYLE_OVERRIDE), only Fusion works
Classification: Plasma
Product: policykit-kde-agent-1
Version: 6.0.3
Platform: Fedora RPMs
OS: Linux
Status: REPORTED
Severity: crash
Priority: NOR
Component: general
Assignee: unassigned-b...@kde.org
Reporter: fabian.ar...@root-core.net
CC: d...@kde.org, jgrul...@redhat.com, jrez...@redhat.com
Target Milestone: ---
Created attachment 168779
--> https://bugs.kde.org/attachment.cgi?id=168779&action=edit
Stack trace
SUMMARY
It crashed, if the specified theme is not present/accessible (?). The only
working Theme is "Fusion".
This is happened on hyprland, as I was testing polkit with it. Nonetheless, it
should not crash.
STEPS TO REPRODUCE
1. Run "QT_STYLE_OVERRIDE=Adwaita-Dark
/usr/libexec/kf6/polkit-kde-authentication-agent-1"
2. Open a program that requests elevated rights (rg. partitionmanager)
OBSERVED RESULT
Crash. Some stdout output:
> QQmlApplicationEngine failed to load component
> qrc:/qml/QuickAuthDialog.qml: module "Adwaita-Dark" is not installed
> KCrash: appFilePath points to nullptr!
> KCrash: Application '<unknown>' crashing... crashRecursionCounter = 2
> Segmentation fault
EXPECTED RESULT
No crash and a themed dialog that elevated rights.
SOFTWARE/OS VERSIONS
CAUTION: I was using hyprland!
Linux: Nobara Linux 39
KDE Plasma Version: 6.0.3
KDE Frameworks Version: 6.0.0
Qt Version: 6.6.2
ADDITIONAL INFORMATION
If you enter something random as QT_STYLE_OVERRIDE, it does not crash. It
instead tells you which styles could be used and falls back to Fusion.
> Available styles: Breeze, qt5ct-style, qt6ct-style, HighContrastInverse,
> HighContrast, Adwaita-HighContrastInverse, Adwaita-HighContrast,
> Adwaita-Dark, Adwaita, Windows, Fusion
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