ubuntu-bug command causes apport crash for not existing packages

[Rafael Belmonte]

ubuntu-bug command makes apport-kde to crash if it is invoked with a package name which does not exist as argument.
Steps to reproduce:
1) Open a terminal.
2) Run this command: ubuntu-bug blablabla
3) You will see a dialog with the information about "blablabla" package does not exist.
4) After closing the dialog, apport crashes, and KDE Crash Handler intercepst it.

Backtrace:

Application: Apport KDE (python3.2mu), signal: Segmentation fault
Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
[KCrash Handler]
#7 QWidget::~QWidget (this=0x939e190, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1630
#8 0xb5959579 in QDialog::~QDialog (this=0x939e190, __in_chrg=<optimized out>) at dialogs/qdialog.cpp:318
#9 0xb6289f2d in ?? () from /usr/lib/python3/dist-packages/PyQt4/QtGui.cpython-32mu.so
#10 0xb6289f82 in ?? () from /usr/lib/python3/dist-packages/PyQt4/QtGui.cpython-32mu.so
#11 0xb627b79c in ?? () from /usr/lib/python3/dist-packages/PyQt4/QtGui.cpython-32mu.so
#12 0xb627b7ee in ?? () from /usr/lib/python3/dist-packages/PyQt4/QtGui.cpython-32mu.so
#13 0xb64ca0ce in ?? () from /usr/lib/python3/dist-packages/sip.cpython-32mu.so
#14 0xb64cbb91 in ?? () from /usr/lib/python3/dist-packages/sip.cpython-32mu.so
#15 0x080bb741 in subtype_dealloc.6372 (self=<ProgressDialog(buttons=<QDialogButtonBox at remote 0x944e464>, text=<QLabel at remote 0x944e344>, progress=<QProgressBar at remote 0x944e3d4>, vboxlayout=<QVBoxLayout at remote 0x944e02c>, heading=<QLabel at remote 0x944e14c>) at remote 0x90fb734>) at ../Objects/typeobject.c:977
#16 0x081153a6 in dict_dealloc.65667 (mp=0x91271c4) at ../Objects/dictobject.c:1048
#17 0x080bb772 in subtype_dealloc.6372 (self=<MainUserInterface(report_file=None, gettext_domain='apport', args=[], crashdb=<CrashDatabase at remote 0x90f65ac>, cur_package='blablabla', dialog=None, report=<Report at remote 0x910198c>, progress=<ProgressDialog(buttons=<QDialogButtonBox at remote 0x944e464>, text=<QLabel at remote 0x944e344>, progress=<QProgressBar at remote 0x944e3d4>, vboxlayout=<QVBoxLayout at remote 0x944e02c>, heading=<QLabel at remote 0x944e14c>) at remote 0x90fb734>, options=<Values(save=None, package='blablabla', pid=None, update_report=None, window=False, version=None, hanging=False, tag=[], filebug=True, crash_file=None, symptom=None) at remote 0x910190c>) at remote 0x90d884c>) at ../Objects/typeobject.c:962
#18 0x08109ee9 in insertdict_by_entry.65695 (mp=mp@entry=0xb71d92d4, key=key@entry='UserInterface', hash=<optimized out>, ep=0x8ee5ab4, value=value@entry=None) at ../Objects/dictobject.c:527
#19 0x08106da6 in insertdict (value=None, hash=<optimized out>, key='UserInterface', mp=0xb71d92d4) at ../Objects/dictobject.c:564
#20 dict_set_item_by_hash_or_entry (value=None, ep=0x0, hash=<optimized out>, key='UserInterface', op={'qUncompress': None, 'Q_ENUMS': None, 'QVBoxLayout': None, 'text': None, 'QState': None, 'QProcessEnvironment': None, 'qRound64': None, 'QDir': None, 'qRound': None, 'noforcesign': None, 'QVariantAnimation': None, 'QSignalMapper': None, 'QRadioButton': None, 'ReportDialog': None, 'QPyNullVariant': None, 'copyright': None, 'qChecksum': None, 'description': None, 'QPoint': None, 'KCmdLineArgs': None, 'QDialog': None, 'qRegisterResourceData': None, 'QAbstractEventDispatcher': None, 'QLineEdit': None, 'apport': None, 'QBitArray': None, 'QXmlStreamEntityDeclaration': None, 'app': None, 'QModelIndex': None, 'QLocale': None, 'pyqtSignature': None, 'QFinalState': None, 'KApplication': None, 'QFile': None, 'qAbs': None, 'MainUserInterface': None, 'QMutexLocker': None, 'QSettings': None, '__cached__': None, 'uppercasebase': None, 'QtSystemMsg': None, 'QAbstractAnimation': None, 'QThread': None, 'oct_': None, 'qsrand': None, 'pyqtWrapperType': None, 'QTimeLine': None, 'KNotification': None, 'QAbstractTransition': None,...(truncated)) at ../Objects/dictobject.c:803
#21 PyDict_SetItem (op=op@entry={'qUncompress': None, 'Q_ENUMS': None, 'QVBoxLayout': None, 'text': None, 'QState': None, 'QProcessEnvironment': None, 'qRound64': None, 'QDir': None, 'qRound': None, 'noforcesign': None, 'QVariantAnimation': None, 'QSignalMapper': None, 'QRadioButton': None, 'ReportDialog': None, 'QPyNullVariant': None, 'copyright': None, 'qChecksum': None, 'description': None, 'QPoint': None, 'KCmdLineArgs': None, 'QDialog': None, 'qRegisterResourceData': None, 'QAbstractEventDispatcher': None, 'QLineEdit': None, 'apport': None, 'QBitArray': None, 'QXmlStreamEntityDeclaration': None, 'app': None, 'QModelIndex': None, 'QLocale': None, 'pyqtSignature': None, 'QFinalState': None, 'KApplication': None, 'QFile': None, 'qAbs': None, 'MainUserInterface': None, 'QMutexLocker': None, 'QSettings': None, '__cached__': None, 'uppercasebase': None, 'QtSystemMsg': None, 'QAbstractAnimation': None, 'QThread': None, 'oct_': None, 'qsrand': None, 'pyqtWrapperType': None, 'QTimeLine': None, 'KNotification': None, 'QAbstractTransition': None,...(truncated), key=key@entry='UserInterface', value=None) at ../Objects/dictobject.c:856
#22 0x0810cc0c in _PyModule_Clear (m=<module at remote 0xb71d7cec>) at ../Objects/moduleobject.c:303
#23 0x0813ffa2 in PyImport_Cleanup () at ../Python/import.c:472
#24 0x0806903c in Py_Finalize () at ../Python/pythonrun.c:461
#25 0x0809e85f in Py_Main (argc=argc@entry=3, argv=argv@entry=0x89d9008) at ../Modules/main.c:752
#26 0x080a825c in main (argc=3, argv=0xbfd43ce4) at ../Modules/python.c:65

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: apport-kde 2.6.1-0ubuntu9
ProcVersionSignature: Ubuntu 3.5.0-19.30-generic 3.5.7
Uname: Linux 3.5.0-19-generic i686
ApportVersion: 2.6.1-0ubuntu9
Architecture: i386
CrashReports:
 640:1000:1000:5162577:2012-12-14 21:15:03.590966123 +0100:2012-12-14 21:14:46.594881849 +0100:/var/crash/_usr_bin_quassel.1000.crash
 640:1000:1000:897521:2012-12-14 21:24:03.229642046 +0100:2012-12-14 21:23:59.477623442 +0100:/var/crash/_usr_bin_nepomukservicestub.1000.crash
 640:0:0:1010408:2012-12-14 18:25:49.503368497 +0100:2012-12-14 18:25:44.451343445 +0100:/var/crash/_usr_bin_qaptworker.0.crash
Date: Sat Dec 15 20:09:35 2012
InstallationDate: Installed on 2012-12-14 (1 days ago)
InstallationMedia: Kubuntu 12.10 "Quantal Quetzal" - Release i386 (20121017.1)
MarkForUpload: True
PackageArchitecture: all
SourcePackage: apport
UpgradeStatus: No upgrade log present (probably fresh install)

[Rafael Belmonte (eaglescreen)]

I already know that backtrace is not very usefull.
The packages containing debug information for the following application and libraries are missing:

/usr/bin/python3.2mu
/usr/lib/python3/dist-packages/PyQt4/QtGui.cpython-32mu.so
/usr/lib/python3/dist-packages/sip.cpython-32mu.so

Do you know what can I do to get a better backtrace?

[Marcus Tomlinson (marcustomlinson)]

This release of Ubuntu is no longer receiving maintenance updates. If this is still an issue on a maintained version of Ubuntu please let us know.

[Launchpad Janitor (janitor)]

[Expired for apport (Ubuntu) because there has been no activity for 60 days.]