[Bug 250549] KMail crashed when changing focus

[Alex Merry]

https://bugs.kde.org/show_bug.cgi?id=250549





--- Comment #1 from Alex Merry <kde randomguy3 me uk>  2010-09-09 15:20:00 ---
Actually, simply typing stuff into the To: line and immediately deleting it all
again causes this.

Valgrind output:

==14221== Invalid read of size 8
==14221==    at 0xA5A5BD7: QMetaObject::activate(QObject*, QMetaObject const*,
int, void**) (qobject.h:125)
==14221==    by 0x95A2BB5: QLineEdit::focusOutEvent(QFocusEvent*)
(qlineedit.cpp:1830)
==14221==    by 0x51784E7: KLineEdit::focusOutEvent(QFocusEvent*)
(klineedit.cpp:1799)
==14221==    by 0x91FA1DB: QWidget::event(QEvent*) (qwidget.cpp:8157)
==14221==    by 0x95A0F10: QLineEdit::event(QEvent*) (qlineedit.cpp:1480)
==14221==    by 0x517667F: KLineEdit::event(QEvent*) (klineedit.cpp:1394)
==14221==    by 0x91AAAE3: QApplicationPrivate::notify_helper(QObject*,
QEvent*) (qapplication.cpp:4302)
==14221==    by 0x91AEBC9: QApplication::notify(QObject*, QEvent*)
(qapplication.cpp:4185)
==14221==    by 0x5090C8C: KApplication::notify(QObject*, QEvent*)
(kapplication.cpp:310)
==14221==    by 0xA591D8B: QCoreApplication::notifyInternal(QObject*, QEvent*)
(qcoreapplication.cpp:726)
==14221==    by 0x91A8C9C: QApplicationPrivate::setFocusWidget(QWidget*,
Qt::FocusReason) (qcoreapplication.h:215)
==14221==    by 0x91EDE20: QWidget::setFocus(Qt::FocusReason)
(qwidget.cpp:6161)
==14221==  Address 0x1a837ae8 is 8 bytes inside a block of size 80 free'd
==14221==    at 0x4C24D9E: operator delete(void*) (in
/usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==14221==    by 0xE8CC2CF:
MessageComposer::RecipientLineEdit::~RecipientLineEdit() (recipientline.h:49)
==14221==    by 0xA5A2AC3: QObjectPrivate::deleteChildren() (qobject.cpp:1978)
==14221==    by 0x91FDCA4: QWidget::~QWidget() (qwidget.cpp:1476)
==14221==    by 0xE8CBA5D: KPIM::MultiplyingLine::~MultiplyingLine() (in
/home/kde-devel/kde/lib/libmessagecomposer.so.4.6.0)
==14221==    by 0xE8CBB25: MessageComposer::RecipientLineNG::~RecipientLineNG()
(in /home/kde-devel/kde/lib/libmessagecomposer.so.4.6.0)
==14221==    by 0xE8CBB81: MessageComposer::RecipientLineNG::~RecipientLineNG()
(recipientline.h:68)
==14221==    by 0x62854A9: KPIM::MultiplyingLineView::slotDeleteLine()
(multiplyinglineview_p.cpp:180)
==14221==    by 0x6285358:
KPIM::MultiplyingLineView::slotDecideLineDeletion(KPIM::MultiplyingLine*)
(multiplyinglineview_p.cpp:152)
==14221==    by 0x6286439:
KPIM::MultiplyingLineView::qt_metacall(QMetaObject::Call, int, void**)
(multiplyinglineview_p.moc:121)
==14221==    by 0xA5A5DEE: QMetaObject::activate(QObject*, QMetaObject const*,
int, void**) (qobject.cpp:3287)
==14221==    by 0x6283714:
KPIM::MultiplyingLine::deleteLine(KPIM::MultiplyingLine*)
(multiplyingline.moc:138)
==14221== 
==14221== Invalid read of size 4
==14221==    at 0xA5A60AB: QMetaObject::activate(QObject*, QMetaObject const*,
int, void**) (qobject_p.h:222)
==14221==    by 0x95A2BB5: QLineEdit::focusOutEvent(QFocusEvent*)
(qlineedit.cpp:1830)
==14221==    by 0x51784E7: KLineEdit::focusOutEvent(QFocusEvent*)
(klineedit.cpp:1799)
==14221==    by 0x91FA1DB: QWidget::event(QEvent*) (qwidget.cpp:8157)
==14221==    by 0x95A0F10: QLineEdit::event(QEvent*) (qlineedit.cpp:1480)
==14221==    by 0x517667F: KLineEdit::event(QEvent*) (klineedit.cpp:1394)
==14221==    by 0x91AAAE3: QApplicationPrivate::notify_helper(QObject*,
QEvent*) (qapplication.cpp:4302)
==14221==    by 0x91AEBC9: QApplication::notify(QObject*, QEvent*)
(qapplication.cpp:4185)
==14221==    by 0x5090C8C: KApplication::notify(QObject*, QEvent*)
(kapplication.cpp:310)
==14221==    by 0xA591D8B: QCoreApplication::notifyInternal(QObject*, QEvent*)
(qcoreapplication.cpp:726)
==14221==    by 0x91A8C9C: QApplicationPrivate::setFocusWidget(QWidget*,
Qt::FocusReason) (qcoreapplication.h:215)
==14221==    by 0x91EDE20: QWidget::setFocus(Qt::FocusReason)
(qwidget.cpp:6161)
==14221==  Address 0x60 is not stack'd, malloc'd or (recently) free'd
==14221== 
*** KMail got signal 11 (Exiting)

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