[REG] Crash/segfault in ozone implementation when calling XkbGetState

#0  0xb54d17dc in XkbUseExtension () at /usr/lib/arm-linux-gnueabihf/libX11.so.6
#1  0xb54cb524 in XkbGetState () at /usr/lib/arm-linux-gnueabihf/libX11.so.6
#2  0xa69558b8 in getCurrentKeyboardLayout () at /qtsrc/qt-everywhere-src-6.2.0/qtwebengine/src/core/ozone/ozone_platform_qt.cpp:164
#3  InitializeUI() () at /qtsrc/qt-everywhere-src-6.2.0/qtwebengine/src/core/ozone/ozone_platform_qt.cpp:206
#4  0xa71d6b0e in ui::OzonePlatform::InitializeForUI(ui::OzonePlatform::InitParams const&) ()
    at ../../../../../../../qtsrc/qt-everywhere-src-6.2.0/qtwebengine/src/3rdparty/chromium/ui/ozone/public/ozone_platform.cc:67
#5  0xab8394c8 in aura::Env::Init() () at ./../../../../../../../qtsrc/qt-everywhere-src-6.2.0/qtwebengine/src/3rdparty/chromium/ui/aura/env.cc:248
#6  0xab839534 in aura::Env::CreateInstance() () at ./../../../../../../../qtsrc/qt-everywhere-src-6.2.0/qtwebengine/src/3rdparty/chromium/ui/aura/env.cc:109
#7  0xaaef54dc in content::BrowserMainLoop::InitializeToolkit() () at ../../../../../../../qtsrc/qt-everywhere-src-6.2.0/qtwebengine/src/3rdparty/chromium/content/browser/browser_main_loop.cc:1407
#8  0xaaef6782 in content::BrowserMainRunnerImpl::Initialize(content::MainFunctionParams const&) ()
    at ../../../../../../../qtsrc/qt-everywhere-src-6.2.0/qtwebengine/src/3rdparty/chromium/content/browser/browser_main_runner_impl.cc:115
#9  0xa691d424 in QtWebEngineCore::WebEngineContext::WebEngineContext() () at /qtsrc/qt-everywhere-src-6.2.0/qtwebengine/src/core/web_engine_context.cpp:817
#10 0xa691e116 in QtWebEngineCore::WebEngineContext::current() () at /qtsrc/qt-everywhere-src-6.2.0/qtwebengine/src/core/web_engine_context.cpp:519
#11 0xa6909a90 in QtWebEngineCore::WebContentsAdapter::WebContentsAdapter(std::unique_ptr<content::WebContents, std::default_delete<content::WebContents> >) ()
    at /qtsrc/qt-everywhere-src-6.2.0/qtwebengine/src/core/web_contents_adapter.cpp:454
#12 0xa6909ab2 in QtWebEngineCore::WebContentsAdapter::WebContentsAdapter() () at /qtsrc/qt-everywhere-src-6.2.0/qtwebengine/src/core/web_contents_adapter.cpp:458
#13 0xad174f2c in QSharedPointer<QtWebEngineCore::WebContentsAdapter>::create<>() () at /usr/arm-linux-gnueabihf/include/c++/10/new:175
#14 QQuickWebEngineViewPrivate::QQuickWebEngineViewPrivate() (this=0x51c2e0) at /qtsrc/qt-everywhere-src-6.2.0/qtwebengine/src/webenginequick/api/qquickwebengineview.cpp:167
#15 0xad178198 in QQuickWebEngineView::QQuickWebEngineView(QQuickItem*) (this=0x51c168, parent=<optimized out>) at /qtsrc/qt-everywhere-src-6.2.0/qtwebengine/src/webenginequick/api/qquickwebengineview.cpp:797
#16 0xad186d5c in QQmlPrivate::QQmlElement<QQuickWebEngineView>::QQmlElement() (this=0x51c168) at /qtsrc/qt-everywhere-src-6.2.0/qtdeclarative/src/qml/qml/qqmlprivate.h:128
#17 QQmlPrivate::createInto<QQuickWebEngineView>(void*, void*) (memory=0x51c168) at /qtsrc/qt-everywhere-src-6.2.0/qtdeclarative/src/qml/qml/qqmlprivate.h:188
#18 0xb668d840 in QQmlType::create(QObject**, void**, unsigned int) const (this=this@entry=0xbefff030, out=out@entry=0xbefff02c, memory=memory@entry=0xbefff034, additionalMemory=additionalMemory@entry=96)
    at /qtsrc/qt-everywhere-src-6.2.0/qtdeclarative/src/qml/qml/qqmltype.cpp:501
#19 0xb6660d8e in QQmlObjectCreator::createInstance(int, QObject*, bool) (this=this@entry=0x51acf8, index=1, parent=0x4fead0, isContextObject=<optimized out>)
    at /qtsrc/qt-everywhere-src-6.2.0/qtdeclarative/src/qml/qml/qqmlobjectcreator.cpp:1207
#20 0xb666346e in QQmlObjectCreator::setPropertyBinding(QQmlPropertyData const*, QV4::CompiledData::Binding const*)
    (this=this@entry=0x51acf8, bindingProperty=bindingProperty@entry=0xad07870c, binding=binding@entry=0xade6f3dc) at /qtsrc/qt-everywhere-src-6.2.0/qtbase/src/corelib/global/qendian.h:273
#21 0xb6663856 in QQmlObjectCreator::setupBindings(bool) (this=this@entry=0x51acf8, applyDeferredBindings=applyDeferredBindings@entry=false)
    at /qtsrc/qt-everywhere-src-6.2.0/qtdeclarative/src/qml/qml/qqmlobjectcreator.cpp:775
#22 0xb665fa88 in QQmlObjectCreator::populateInstance(int, QObject*, QObject*, QQmlPropertyData const*) (this=this@entry=0x51acf8, index=-1,
    index@entry=0, instance=0x0, bindingTarget=0x0, valueTypeProperty=valueTypeProperty@entry=0x0) at /qtsrc/qt-everywhere-src-6.2.0/qtdeclarative/src/qml/qml/qqmlobjectcreator.cpp:1606
#23 0xb6660a3e in QQmlObjectCreator::createInstance(int, QObject*, bool) (this=this@entry=0x51acf8, index=index@entry=0, parent=parent@entry=0x0, isContextObject=isContextObject@entry=true)
    at /qtsrc/qt-everywhere-src-6.2.0/qtdeclarative/src/qml/qml/qqmlobjectcreator.cpp:1365
#24 0xb6661882 in QQmlObjectCreator::create(int, QObject*, QQmlInstantiationInterrupt*, int) (flags=<optimized out>, interrupt=0x0, parent=0x0, subComponentIndex=<optimized out>, this=<optimized out>)
    at /qtsrc/qt-everywhere-src-6.2.0/qtdeclarative/src/qml/qml/qqmlobjectcreator.cpp:217
#25 QQmlObjectCreator::create(int, QObject*, QQmlInstantiationInterrupt*, int)
    (this=<optimized out>, subComponentIndex=<optimized out>, parent=parent@entry=0x0, interrupt=interrupt@entry=0x0, flags=<optimized out>, flags@entry=1)
    at /qtsrc/qt-everywhere-src-6.2.0/qtdeclarative/src/qml/qml/qqmlobjectcreator.cpp:161
#26 0xb661d83e in QQmlComponentPrivate::beginCreate(QQmlRefPointer<QQmlContextData>) (this=0x43a400, context=...) at /qtsrc/qt-everywhere-src-6.2.0/qtbase/src/corelib/tools/qscopedpointer.h:125
#27 0xb661db82 in QQmlComponent::beginCreate(QQmlContext*) (this=<optimized out>, publicContext=<optimized out>) at /qtsrc/qt-everywhere-src-6.2.0/qtdeclarative/src/qml/qml/qqmlcomponent.cpp:903
#28 0xb661f338 in QQmlComponent::create(QQmlContext*) (this=0x519a90, context=<optimized out>) at /qtsrc/qt-everywhere-src-6.2.0/qtdeclarative/src/qml/qml/qqmlcomponent.cpp:830

static std::string getCurrentKeyboardLayout()
{
    Display *dpy = static_cast<Display *>(GetQtXDisplay());
    if (dpy == nullptr)
        return std::string();    XkbStateRec state;
    if (XkbGetState(dpy, XkbUseCoreKbd, &state) != 0)
        return std::string();
...