https://bugs.kde.org/show_bug.cgi?id=431508
Bug ID: 431508
Summary: Crash in kglobalaccel setting
Product: systemsettings
Version: unspecified
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: kcm_keys
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Target Milestone: ---
Split from https://bugs.kde.org/show_bug.cgi?id=426047 # 26
- What I was doing when the application crashed:
Configuring global shotcuts
- Unusual behavior I noticed:
I saved the shortcuts with apply button but they didn't actually works, also
all shorcuts are unconfigured, I can't do an Alt + Tab
- Custom settings of the application:
-- Backtrace (Reduced):
#4 0x00007fcd25320504 in KGlobalShortcutInfo::componentUniqueName() const ()
from /lib64/libKF5GlobalAccel.so.5
#6 0x00007fccf0cad232 in
QtPrivate::QFunctorSlotObject<GlobalAccelModel::addApplication(QString const&,
QString const&)::{lambda()#2}::operator()() const::{lambda()#2}, 0,
QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase*, QObject*,
void**, bool*) () from /usr/lib64/qt5/plugins/kcms/kcm_keys.so
#7 0x00007fcd2670b386 in void doActivate<false>(QObject*, int, void**) () from
/lib64/libQt5Core.so.5
#8 0x00007fcd254ae383 in
QDBusPendingCallWatcher::finished(QDBusPendingCallWatcher*) () from
/lib64/libQt5DBus.so.5
#9 0x00007fcd26703d1e in QObject::event(QEvent*) () from
/lib64/libQt5Core.so.5
-----
Reading the code it's clear what's wrong
connect(infoWatcher, &QDBusPendingCallWatcher::finished, this, [=] {
A reply can be valid but empty. At which point calling
info[0].componentUniqueName();
obviously crashes.
I don't know if it's safe to just guard in the lambda.
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