https://bugs.kde.org/show_bug.cgi?id=458555
Bug ID: 458555
Summary: GeoDataFolder iterator methods crash
Product: marble
Version: 22.04.3
Platform: Debian stable
OS: Linux
Status: REPORTED
Severity: crash
Priority: NOR
Component: general
Assignee: marble-b...@kde.org
Reporter: maglio...@arlut.utexas.edu
Target Milestone: ---
SUMMARY
***
With Marble versions 19.08 and 22.04.3, we are experiencing a seg fault when
calling the iterator methods for GeoDataFolder.
It looks like the d pointer is either becoming corrupted or is getting deleted,
only for the iterator methods. I can call other methods without problems, such
as at() and last(). I ran the same snippet with Marble 16.04 and it runs fine.
***
STEPS TO REPRODUCE
1. Create an empty Qt+Marble project.
2. Add the following code to main:
GeoDataFolder *myFolder = new GeoDataFolder();
myFolder->begin();
3. Compile, build, and run the application.
4. Observe the crash.
OBSERVED RESULT
The application crashes due to a seg fault on the iterator begin command.
I get a similar seg fault when I try to call end(). The stack trace shows the
following:
1 QVector<Marble::GeoDataFeature *>::isDetached qvector.h 113
0x7ffff78f0b36
2 QVector<Marble::GeoDataFeature *>::detach qvector.h 399
0x7ffff78f0cfa
3 QVector<Marble::GeoDataFeature *>::begin qvector.h 219
0x7ffff78ef4c9
4 Marble::GeoDataContainer::begin GeoDataContainer.cpp 349
0x7ffff78ee6fa
5 main main.cpp 54
0x55555555b6e4
EXPECTED RESULT
The application should not crash when calling GeoDataFolder's begin/end
methods.
SOFTWARE/OS VERSIONS
Windows: 10
macOS:
Linux/KDE Plasma: Debian 10
(available in About System)
KDE Plasma Version:
KDE Frameworks Version:
Qt Version: 5.15.5
ADDITIONAL INFORMATION
This behavior has been observed on Debian. We have yet to test Windows.
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