https://bugs.kde.org/show_bug.cgi?id=464734
Bug ID: 464734
Summary: Regression in libqt5widgets5, QPixmap segfaults when
loading TIFF files
Classification: KDE Neon
Product: neon
Version: unspecified
Platform: Neon
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Packages User Edition
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected], [email protected]
Target Milestone: ---
Created attachment 155556
--> https://bugs.kde.org/attachment.cgi?id=155556&action=edit
Minimal 5-lines script which reproduces the crash
Upgrading libqt5widgets5:amd64 from
version 5.15.8+p22.04+tunstable+git20230113.0101-0 to
version 5.15.8+p22.04+tunstable+git20230119.0043-0
results in a regression in the QPixmap widget.
The QPixmap widget now segfaults when loading TIFF files.
It still works fine for other file types (JPEG, PNG, GIF, BMP).
STEPS TO REPRODUCE
The following minimal 5-lines Python script crashes with a TIFF
file argument (it needs Python3 and PyQt5 installed):
import sys
from PyQt5.QtGui import QPixmap
from PyQt5.QtWidgets import QApplication
app = QApplication(sys.argv)
pixmap = QPixmap(sys.argv[1])
Example command-line:
$ python3 broken_qpixmap.py
/usr/share/xml/docbook/stylesheet/docbook-xsl/images/tip.tif
Segmentation fault
The same script runs fine with an old Qt version.
A frequently used, more complete program using QPixmap was
working fine right before the upgrade, and now crashes.
SOFTWARE/OS VERSIONS
KDE Plasma Version: 5.26.5
KDE Frameworks Version: 5.102.0
Qt Version: 5.15.8
Kernel Version: 5.15.0-58-generic (64-bit)
Running on X11
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