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  1. Qt
  2. QTBUG-94975

[ASAN] Heap-use-after-free in QOpenGLFramebufferObject

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Details

    • Linux/Wayland
    • a5f0361622eb08eab6c3474d5fc249d1962e3d1e (qt/qtdeclarative/dev) c46b330fa721e82849194472651430ce255d06e1 (qt/qtdeclarative/6.1) f7655ca8731df398353d87f09c9cc59c1ace3b34 (qt/qtdeclarative/6.2)

    Description

      Issue is not reproducbile on qt 5.12.9

      ==339==ERROR: AddressSanitizer: heap-use-after-free on address 0x60200057a358 at pc 0x7fd8615d2b8a bp 0x7fd806126720 sp 0x7fd806126710                                                   
READ of size 8 at 0x60200057a358 thread T60 (QSGRenderThread)  
 #0 0x7f94e814fb89 in QScopedPointer<QOpenGLFramebufferObjectPrivate, QScopedPointerDeleter<QOpenGLFramebufferObjectPrivate> >::operator->() const ../../include/QtCore/
../../../../../qt/qtbase/src/corelib/tools/qscopedpointer.h:118                                                                                                  
    #1 0x7f94e814fb89 in decltype (({parm#1}.(operator->))()) qGetPtrHelper<QScopedPointer<QOpenGLFramebufferObjectPrivate, QScopedPointerDeleter<QOpenGLFramebufferObjectP
rivate> > const>(QScopedPointer<QOpenGLFramebufferObjectPrivate, QScopedPointerDeleter<QOpenGLFramebufferObjectPrivate> > const&) ../../include/QtCore/../../../../../Downl
oads/qt/qtbase/src/corelib/global/qglobal.h:1135                                                                                                                           
    #2 0x7f94e814fb89 in QOpenGLFramebufferObject::d_func() const /qt/qtbase/src/gui/opengl/qopenglframebufferobject.h:70                      
    #3 0x7f94e814fb89 in QOpenGLFramebufferObject::isValid() const /qt/qtbase/src/gui/opengl/qopenglframebufferobject.cpp:1115                 
    #4 0x7f94e815462b in QOpenGLFramebufferObject::bind() /qt/qtbase/src/gui/opengl/qopenglframebufferobject.cpp:1134                          
    #5 0x7f94ea865a42 in bind /qt/qtdeclarative/src/quick/scenegraph/qsgopengllayer.cpp:85                                                     
    #6 0x7f94ea676bf2 in QSGRenderer::renderScene(QSGBindable const&) /qt/qtdeclarative/src/quick/scenegraph/coreapi/qsgrenderer.cpp:241       
    #7 0x7f94ea86c58e in QSGOpenGLLayer::grab() /qt/qtdeclarative/src/quick/scenegraph/qsgopengllayer.cpp:447                                  
    #8 0x7f94ea86c6f8 in QSGOpenGLLayer::updateTexture() /qt/qtdeclarative/src/quick/scenegraph/qsgopengllayer.cpp:187                         
    #9 0x7f94eadbfc34 in QQuickOpenGLShaderEffectMaterial::updateTextures() const /qt/qtdeclarative/src/quick/items/qquickopenglshadereffectnod
e.cpp:474                                                                                                                                                                  
    #10 0x7f94eadbfdb1 in QQuickOpenGLShaderEffectNode::preprocess() /qt/qtdeclarative/src/quick/items/qquickopenglshadereffectnode.cpp:516    
    #11 0x7f94ea67832b in QSGRenderer::preprocess() /qt/qtdeclarative/src/quick/scenegraph/coreapi/qsgrenderer.cpp:337                         
    #12 0x7f94ea676bbc in QSGRenderer::renderScene(QSGBindable const&) /qt/qtdeclarative/src/quick/scenegraph/coreapi/qsgrenderer.cpp:238      
    #13 0x7f94ea86c58e in QSGOpenGLLayer::grab() /qt/qtdeclarative/src/quick/scenegraph/qsgopengllayer.cpp:447                                 
    #14 0x7f94ea86c6f8 in QSGOpenGLLayer::updateTexture() /qt/qtdeclarative/src/quick/scenegraph/qsgopengllayer.cpp:187                        
    #15 0x7f94eadbfc34 in QQuickOpenGLShaderEffectMaterial::updateTextures() const /qt/qtdeclarative/src/quick/items/qquickopenglshadereffectno
de.cpp:474                                                                                                                                                                 
    #16 0x7f94eadbfdb1 in QQuickOpenGLShaderEffectNode::preprocess() /qt/qtdeclarative/src/quick/items/qquickopenglshadereffectnode.cpp:516    
    #17 0x7f94ea67832b in QSGRenderer::preprocess() /qt/qtdeclarative/src/quick/scenegraph/coreapi/qsgrenderer.cpp:337                         
    #18 0x7f94ea676bbc in QSGRenderer::renderScene(QSGBindable const&) /qt/qtdeclarative/src/quick/scenegraph/coreapi/qsgrenderer.cpp:238      
    #19 0x7f94ea86c58e in QSGOpenGLLayer::grab() /qt/qtdeclarative/src/quick/scenegraph/qsgopengllayer.cpp:447                                 
    #20 0x7f94ea86c6f8 in QSGOpenGLLayer::updateTexture() /qt/qtdeclarative/src/quick/scenegraph/qsgopengllayer.cpp:187                        
    #21 0x7f94eadbfc34 in QQuickOpenGLShaderEffectMaterial::updateTextures() const /qt/qtdeclarative/src/quick/items/qquickopenglshadereffectno
de.cpp:474                                                                                                                                                                 
    #22 0x7f94eadbfdb1 in QQuickOpenGLShaderEffectNode::preprocess() /qt/qtdeclarative/src/quick/items/qquickopenglshadereffectnode.cpp:516    
    #23 0x7f94ea67832b in QSGRenderer::preprocess() /qt/qtdeclarative/src/quick/scenegraph/coreapi/qsgrenderer.cpp:337                         
    #24 0x7f94ea676bbc in QSGRenderer::renderScene(QSGBindable const&) /qt/qtdeclarative/src/quick/scenegraph/coreapi/qsgrenderer.cpp:238      
    #25 0x7f94ea86c58e in QSGOpenGLLayer::grab() /qt/qtdeclarative/src/quick/scenegraph/qsgopengllayer.cpp:447                                 
    #26 0x7f94ea86c6f8 in QSGOpenGLLayer::updateTexture() /qt/qtdeclarative/src/quick/scenegraph/qsgopengllayer.cpp:187                        
    #27 0x7f94eadbfc34 in QQuickOpenGLShaderEffectMaterial::updateTextures() const /qt/qtdeclarative/src/quick/items/qquickopenglshadereffectno
de.cpp:474                                                                                                                                                                 
    #28 0x7f94eadbfdb1 in QQuickOpenGLShaderEffectNode::preprocess() /qt/qtdeclarative/src/quick/items/qquickopenglshadereffectnode.cpp:516    
    #29 0x7f94ea67832b in QSGRenderer::preprocess() /qt/qtdeclarative/src/quick/scenegraph/coreapi/qsgrenderer.cpp:337                         
    #30 0x7f94ea676bbc in QSGRenderer::renderScene(QSGBindable const&) /qt/qtdeclarative/src/quick/scenegraph/coreapi/qsgrenderer.cpp:238      
    #31 0x7f94ea86c58e in QSGOpenGLLayer::grab() /qt/qtdeclarative/src/quick/scenegraph/qsgopengllayer.cpp:447                                 
    #32 0x7f94ea86c6f8 in QSGOpenGLLayer::updateTexture() /qt/qtdeclarative/src/quick/scenegraph/qsgopengllayer.cpp:187                        
    #33 0x7f94eadbfc34 in QQuickOpenGLShaderEffectMaterial::updateTextures() const /qt/qtdeclarative/src/quick/items/qquickopenglshadereffectno
de.cpp:474                                                                                                                                                                 
    #34 0x7f94eadbfdb1 in QQuickOpenGLShaderEffectNode::preprocess() /qt/qtdeclarative/src/quick/items/qquickopenglshadereffectnode.cpp:516    
    #35 0x7f94ea67832b in QSGRenderer::preprocess() /qt/qtdeclarative/src/quick/scenegraph/coreapi/qsgrenderer.cpp:337                         
    #36 0x7f94ea676bbc in QSGRenderer::renderScene(QSGBindable const&) /qt/qtdeclarative/src/quick/scenegraph/coreapi/qsgrenderer.cpp:238      
    #37 0x7f94ea86c58e in QSGOpenGLLayer::grab() /qt/qtdeclarative/src/quick/scenegraph/qsgopengllayer.cpp:447                                 
    #38 0x7f94ea86c6f8 in QSGOpenGLLayer::updateTexture() /qt/qtdeclarative/src/quick/scenegraph/qsgopengllayer.cpp:187                        
    #39 0x7f94eadbfc34 in QQuickOpenGLShaderEffectMaterial::updateTextures() const /qt/qtdeclarative/src/quick/items/qquickopenglshadereffectno
de.cpp:474                                                                                                                                                                 
    #40 0x7f94eadbfdb1 in QQuickOpenGLShaderEffectNode::preprocess() /qt/qtdeclarative/src/quick/items/qquickopenglshadereffectnode.cpp:516    
    #41 0x7f94ea67832b in QSGRenderer::preprocess() /qt/qtdeclarative/src/quick/scenegraph/coreapi/qsgrenderer.cpp:337                         
    #42 0x7f94ea676bbc in QSGRenderer::renderScene(QSGBindable const&) /qt/qtdeclarative/src/quick/scenegraph/coreapi/qsgrenderer.cpp:238      
    #43 0x7f94ea86c58e in QSGOpenGLLayer::grab() /qt/qtdeclarative/src/quick/scenegraph/qsgopengllayer.cpp:447                                 
    #44 0x7f94ea86c6f8 in QSGOpenGLLayer::updateTexture() /qt/qtdeclarative/src/quick/scenegraph/qsgopengllayer.cpp:187                        
    #45 0x7f94eadbfc34 in QQuickOpenGLShaderEffectMaterial::updateTextures() const /qt/qtdeclarative/src/quick/items/qquickopenglshadereffectno
de.cpp:474                                                                                                                                                                 
    #46 0x7f94eadbfdb1 in QQuickOpenGLShaderEffectNode::preprocess() /qt/qtdeclarative/src/quick/items/qquickopenglshadereffectnode.cpp:516    
    #47 0x7f94ea67832b in QSGRenderer::preprocess() /qt/qtdeclarative/src/quick/scenegraph/coreapi/qsgrenderer.cpp:337                         
    #48 0x7f94ea676bbc in QSGRenderer::renderScene(QSGBindable const&) /qt/qtdeclarative/src/quick/scenegraph/coreapi/qsgrenderer.cpp:238      
    #49 0x7f94ea86c58e in QSGOpenGLLayer::grab() /qt/qtdeclarative/src/quick/scenegraph/qsgopengllayer.cpp:447                                 
    #50 0x7f94ea86c6f8 in QSGOpenGLLayer::updateTexture() /qt/qtdeclarative/src/quick/scenegraph/qsgopengllayer.cpp:187                        
    #51 0x7f94eadbfc34 in QQuickOpenGLShaderEffectMaterial::updateTextures() const /qt/qtdeclarative/src/quick/items/qquickopenglshadereffectno
de.cpp:474
    #52 0x7f94eadbfdb1 in QQuickOpenGLShaderEffectNode::preprocess() /qt/qtdeclarative/src/quick/items/qquickopenglshadereffectnode.cpp:516
    #53 0x7f94ea67832b in QSGRenderer::preprocess() /qt/qtdeclarative/src/quick/scenegraph/coreapi/qsgrenderer.cpp:337
    #54 0x7f94ea676bbc in QSGRenderer::renderScene(QSGBindable const&) /qt/qtdeclarative/src/quick/scenegraph/coreapi/qsgrenderer.cpp:238
    #55 0x7f94ea677d79 in QSGRenderer::renderScene(unsigned int) /qt/qtdeclarative/src/quick/scenegraph/coreapi/qsgrenderer.cpp:212
    #56 0x7f94ea844ab3 in QSGDefaultRenderContext::renderNextFrame(QSGRenderer*, unsigned int) /qt/qtdeclarative/src/quick/scenegraph/qsgdefaul
trendercontext.cpp:228
    #57 0x7f94eaa0c2fc in QQuickWindowPrivate::renderSceneGraph(QSize const&, QSize const&) /qt/qtdeclarative/src/quick/items/qquickwindow.cpp:
617
    #58 0x7f94ea8826d3 in QSGRenderThread::syncAndRender(QImage*) /qt/qtdeclarative/src/quick/scenegraph/qsgthreadedrenderloop.cpp:837
    #59 0x7f94ea891a5c in QSGRenderThread::run() /qt/qtdeclarative/src/quick/scenegraph/qsgthreadedrenderloop.cpp:1043
    #60 0x7f94e6147e50 in QThreadPrivate::start(void*) /qt/qtbase/src/corelib/thread/qthread_unix.cpp:329
    #61 0x7f94e5f6d608 in start_thread /build/glibc-eX1tMB/glibc-2.31/nptl/pthread_create.c:477
    #62 0x7f94e5c96292 in __clone (/lib/x86_64-linux-gnu/libc.so.6+0x122292)0x602000608178 is located 8 bytes inside of 16-byte region [0x602000608170,0x602000608180)
freed by thread T0 here:
    #0 0x7f94eba29f7f in operator delete(void*, unsigned long) (/lib/x86_64-linux-gnu/libasan.so.6+0xb2f7f)
    #1 0x7f94e8157a1d in QOpenGLFramebufferObject::~QOpenGLFramebufferObject() /qt/qtbase/src/gui/opengl/qopenglframebufferobject.cpp:1029
    #2 0x7f94ea867a35 in QSGOpenGLLayer::setItem(QSGNode*) /qt/qtdeclarative/src/quick/scenegraph/qsgopengllayer.cpp:211
    #3 0x7f94ead82f51 in QQuickShaderEffectSource::sourceItemParentChanged(QQuickItem*) /qt/qtdeclarative/src/quick/items/qquickshadereffectsou
rce.cpp:370
    #4 0x7f94ead848c0 in QQuickShaderEffectSource::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) .moc/moc_qquickshadereffectsource_p.cpp:244
    #5 0x7f94e68dc005 in void doActivate<false>(QObject*, int, void**) /qt/qtbase/src/corelib/kernel/qobject.cpp:3898
    #6 0x7f94e68c00f0 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) /qt/qtbase/src/corelib/kernel/qobject.cpp:3946
    #7 0x7f94ea96290c in QQuickItem::parentChanged(QQuickItem*) .moc/moc_qquickitem.cpp:1111
    #8 0x7f94ea9ba42d in QQuickItem::setParentItem(QQuickItem*) /qt/qtdeclarative/src/quick/items/qquickitem.cpp:2749
    #9 0x7f94ea9ba8d2 in QQuickItem::~QQuickItem() /qt/qtdeclarative/src/quick/items/qquickitem.cpp:2317
    #10 0x7f94c470c7e2 in QmlUiElement::~QmlUiElement() /common/core/qmluielement.cpp:65
    #11 0x7f9497cbe610 in QQmlPrivate::QQmlElement<QmlUiElement>::~QQmlElement() (/common/libQmlCommonPlugin.so+0x45610)
    #12 0x7f9497cbe641 in QQmlPrivate::QQmlElement<QmlUiElement>::~QQmlElement() (/common//libQmlCommonPlugin.so+0x45641)
    #13 0x7f94e68d0031 in QObjectPrivate::deleteChildren() /qt/qtbase/src/corelib/kernel/qobject.cpp:2104
    #14 0x7f94e68d5232 in QObject::~QObject() /qt/qtbase/src/corelib/kernel/qobject.cpp:1082
    #15 0x7f94ea9bbd71 in QQuickItem::~QQuickItem() /qt/qtdeclarative/src/quick/items/qquickitem.cpp:2304
    #16 0x7f94eaba07cf in QQuickImplicitSizeItem::~QQuickImplicitSizeItem() /qt/qtdeclarative/src/quick/items/qquickimplicitsizeitem_p.h:60
    #17 0x7f94eaba07cf in QQuickLoader::~QQuickLoader() /qt/qtdeclarative/src/quick/items/qquickloader.cpp:313
    #18 0x7f94eaf781fe in QQmlPrivate::QQmlElement<QQuickLoader>::~QQmlElement() ../../include/QtQml/../../../../../qt/qtdeclarative/src/qml/qml/qqmlprivate.h:14
4
    #19 0x7f94eaf781fe in QQmlPrivate::QQmlElement<QQuickLoader>::~QQmlElement() ../../include/QtQml/../../../../../qt/qtdeclarative/src/qml/qml/qqmlprivate.h:14
4
    #20 0x7f94e68d0031 in QObjectPrivate::deleteChildren() /qt/qtbase/src/corelib/kernel/qobject.cpp:2104
    #21 0x7f94e68d5232 in QObject::~QObject() /qt/qtbase/src/corelib/kernel/qobject.cpp:1082
    #22 0x7f94ea9bbd71 in QQuickItem::~QQuickItem() /qt/qtdeclarative/src/quick/items/qquickitem.cpp:2304
    #23 0x7f94eaf76fde in QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement() ../../include/QtQml/../../../../../qt/qtdeclarative/src/qml/qml/qqmlprivate.h:144
    #24 0x7f94eaf76fde in QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement() ../../include/QtQml/../../../../../qt/qtdeclarative/src/qml/qml/qqmlprivate.h:144
    #25 0x7f94e68d0031 in QObjectPrivate::deleteChildren() /qt/qtbase/src/corelib/kernel/qobject.cpp:2104
    #26 0x7f94e68d5232 in QObject::~QObject() /qt/qtbase/src/corelib/kernel/qobject.cpp:1082
    #27 0x7f94ea9bbd71 in QQuickItem::~QQuickItem() /qt/qtdeclarative/src/quick/items/qquickitem.cpp:2304
    #28 0x7f94973b5b67 in QQuickLayout::~QQuickLayout() /qt/qtdeclarative/src/imports/layouts/qquicklay
out.cpp:743previously allocated by thread T60 (QSGRenderThread) here:
    #0 0x7f94eba28f17 in operator new(unsigned long) (/lib/x86_64-linux-gnu/libasan.so.6+0xb1f17)
    #1 0x7f94ea86b578 in QSGOpenGLLayer::grab() /qt/qtdeclarative/src/quick/scenegraph/qsgopengllayer.cpp:370
    #2 0x7f94ea86c6f8 in QSGOpenGLLayer::updateTexture() /qt/qtdeclarative/src/quick/scenegraph/qsgopengllayer.cpp:187
    #3 0x7f94eadbfc34 in QQuickOpenGLShaderEffectMaterial::updateTextures() const /qt/qtdeclarative/src/quick/items/qquickopenglshadereffectnod
e.cpp:474
    #4 0x7f94eadbfdb1 in QQuickOpenGLShaderEffectNode::preprocess() /qt/qtdeclarative/src/quick/items/qquickopenglshadereffectnode.cpp:516
    #5 0x7f94ea67832b in QSGRenderer::preprocess() /qt/qtdeclarative/src/quick/scenegraph/coreapi/qsgrenderer.cpp:337
    #6 0x7f94ea676bbc in QSGRenderer::renderScene(QSGBindable const&) /qt/qtdeclarative/src/quick/scenegraph/coreapi/qsgrenderer.cpp:238
    #7 0x7f94ea86c58e in QSGOpenGLLayer::grab() /qt/qtdeclarative/src/quick/scenegraph/qsgopengllayer.cpp:447
    #8 0x7f94ea86c6f8 in QSGOpenGLLayer::updateTexture() /qt/qtdeclarative/src/quick/scenegraph/qsgopengllayer.cpp:187
    #9 0x7f94eadbfc34 in QQuickOpenGLShaderEffectMaterial::updateTextures() const /qt/qtdeclarative/src/quick/items/qquickopenglshadereffectnod
e.cpp:474
    #10 0x7f94eadbfdb1 in QQuickOpenGLShaderEffectNode::preprocess() /qt/qtdeclarative/src/quick/items/qquickopenglshadereffectnode.cpp:516
    #11 0x7f94ea67832b in QSGRenderer::preprocess() /qt/qtdeclarative/src/quick/scenegraph/coreapi/qsgrenderer.cpp:337
    #12 0x7f94ea676bbc in QSGRenderer::renderScene(QSGBindable const&) /qt/qtdeclarative/src/quick/scenegraph/coreapi/qsgrenderer.cpp:238
    #13 0x7f94ea86c58e in QSGOpenGLLayer::grab() /qt/qtdeclarative/src/quick/scenegraph/qsgopengllayer.cpp:447
    #14 0x7f94ea86c6f8 in QSGOpenGLLayer::updateTexture() /qt/qtdeclarative/src/quick/scenegraph/qsgopengllayer.cpp:187
    #15 0x7f94eadbfc34 in QQuickOpenGLShaderEffectMaterial::updateTextures() const /qt/qtdeclarative/src/quick/items/qquickopenglshadereffectno
de.cpp:474
    #16 0x7f94eadbfdb1 in QQuickOpenGLShaderEffectNode::preprocess() /qt/qtdeclarative/src/quick/items/qquickopenglshadereffectnode.cpp:516
    #17 0x7f94ea67832b in QSGRenderer::preprocess() /qt/qtdeclarative/src/quick/scenegraph/coreapi/qsgrenderer.cpp:337
    #18 0x7f94ea676bbc in QSGRenderer::renderScene(QSGBindable const&) /qt/qtdeclarative/src/quick/scenegraph/coreapi/qsgrenderer.cpp:238
    #19 0x7f94ea86c58e in QSGOpenGLLayer::grab() /qt/qtdeclarative/src/quick/scenegraph/qsgopengllayer.cpp:447
    #20 0x7f94ea86c6f8 in QSGOpenGLLayer::updateTexture() /qt/qtdeclarative/src/quick/scenegraph/qsgopengllayer.cpp:187
    #21 0x7f94eadbfc34 in QQuickOpenGLShaderEffectMaterial::updateTextures() const /qt/qtdeclarative/src/quick/items/qquickopenglshadereffectno
de.cpp:474
    #22 0x7f94eadbfdb1 in QQuickOpenGLShaderEffectNode::preprocess() /qt/qtdeclarative/src/quick/items/qquickopenglshadereffectnode.cpp:516
    #23 0x7f94ea67832b in QSGRenderer::preprocess() /qt/qtdeclarative/src/quick/scenegraph/coreapi/qsgrenderer.cpp:337
    #24 0x7f94ea676bbc in QSGRenderer::renderScene(QSGBindable const&) /qt/qtdeclarative/src/quick/scenegraph/coreapi/qsgrenderer.cpp:238
    #25 0x7f94ea86c58e in QSGOpenGLLayer::grab() /qt/qtdeclarative/src/quick/scenegraph/qsgopengllayer.cpp:447
    #26 0x7f94ea86c6f8 in QSGOpenGLLayer::updateTexture() /qt/qtdeclarative/src/quick/scenegraph/qsgopengllayer.cpp:187
    #27 0x7f94eadbfc34 in QQuickOpenGLShaderEffectMaterial::updateTextures() const /qt/qtdeclarative/src/quick/items/qquickopenglshadereffectno
de.cpp:474
    #28 0x7f94eadbfdb1 in QQuickOpenGLShaderEffectNode::preprocess() /qt/qtdeclarative/src/quick/items/qquickopenglshadereffectnode.cpp:516
    #29 0x7f94ea67832b in QSGRenderer::preprocess() /qt/qtdeclarative/src/quick/scenegraph/coreapi/qsgrenderer.cpp:337Thread T60 (QSGRenderThread) created by T0 here:
    #0 0x7f94eb9cea95 in __interceptor_pthread_create (/lib/x86_64-linux-gnu/libasan.so.6+0x57a95)
    #1 0x7f94e614604a in QThread::start(QThread::Priority) /qt/qtbase/src/corelib/thread/qthread_unix.cpp:703
    #2 0x7f94ea88cc6b in QSGThreadedRenderLoop::handleExposure(QQuickWindow*) /qt/qtdeclarative/src/quick/scenegraph/qsgthreadedrenderloop.cpp:
1367
    #3 0x7f94ea890210 in QSGThreadedRenderLoop::exposureChanged(QQuickWindow*) /qt/qtdeclarative/src/quick/scenegraph/qsgthreadedrenderloop.cpp
:1269
    #4 0x7f94ea9f6629 in QQuickWindow::exposeEvent(QExposeEvent*) /qt/qtdeclarative/src/quick/items/qquickwindow.cpp:237
    #5 0x7f94e757bc6f in QWindow::event(QEvent*) /qt/qtbase/src/gui/kernel/qwindow.cpp:2412
    #6 0x7f94eaa486be in QQuickWindow::event(QEvent*) /qt/qtdeclarative/src/quick/items/qquickwindow.cpp:1919
    #7 0x7f94e67fbe08 in QCoreApplicationPrivate::notify_helper(QObject*, QEvent*) /qt/qtbase/src/corelib/kernel/qcoreapplication.cpp:1224
    #8 0x7f94e67fc0a6 in doNotify /qt/qtbase/src/corelib/kernel/qcoreapplication.cpp:1153
    #9 0x7f94e67fc101 in QCoreApplication::notify(QObject*, QEvent*) /qt/qtbase/src/corelib/kernel/qcoreapplication.cpp:1139
    #10 0x7f94e753acf0 in QGuiApplication::notify(QObject*, QEvent*) /qt/qtbase/src/gui/kernel/qguiapplication.cpp:1935
    #11 0x7f94e67fc3dc in QCoreApplication::notifyInternal2(QObject*, QEvent*) /qt/qtbase/src/corelib/kernel/qcoreapplication.cpp:1063
    #12 0x7f94e67fcc48 in QCoreApplication::sendSpontaneousEvent(QObject*, QEvent*) /qt/qtbase/src/corelib/kernel/qcoreapplication.cpp:1470
    #13 0x7f94e75529ce in QGuiApplicationPrivate::processExposeEvent(QWindowSystemInterfacePrivate::ExposeEvent*) /qt/qtbase/src/gui/kernel/qgu
iapplication.cpp:3258
    #14 0x7f94e755354b in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) /qt/qtbase/src/gu
i/kernel/qguiapplication.cpp:2070
    #15 0x7f94e74bee65 in QWindowSystemEventHandler::sendEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) /qt/qtbase/src/gui/kernel/qwi
ndowsysteminterface.cpp:193
    #16 0x7f94eb444654 in QtWayland::WindowSystemEventHandler::sendEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) (/install/lib/libQt5WaylandCo
mpositor.so.5+0x105654)
    #17 0x7f94e74c3ff3 in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) /qt/qtbase/src/gui/kernel/qwind
owsysteminterface.cpp:1165
    #18 0x7f94e02a5f4c in xcbSourceDispatch /qt/qtbase/src/plugins/platforms/xcb/qxcbeventdispatcher.cp
p:105

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          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-97572 Quick create and remove QuickItem cause QSG threads crash

          • P1: Critical - Urgent and Important, will STOP the release if matched with set FixVersion field. This includes regressions from the last version that are not edge cases; Data loss; Build issues; All but the most unlikely crashes/lockups/hanging; Serious usability issues and embarrassing bugs & Bugs critical to a deliverable. This is the highest possible priority for requirements.
          • Closed
          mentioned in

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          For Gerrit Dashboard: QTBUG-94975
          # Subject Branch Project Status CR V
          376153,2 Revert "Fix for possible crash in QSGDefaultLayer::grab" dev qt/qtdeclarative Status: MERGED +2 0
          376472,2 Revert "Fix for possible crash in QSGDefaultLayer::grab" 6.2 qt/qtdeclarative Status: MERGED +2 0
          376473,2 Revert "Fix for possible crash in QSGDefaultLayer::grab" 6.1 qt/qtdeclarative Status: MERGED +2 0
          376480,3 Revert "Fix for possible crash in QSGDefaultLayer::grab" tqtc/lts-5.15 qt/tqtc-qtdeclarative Status: MERGED +2 0

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              lagocs Laszlo Agocs
              diredko diredko
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