[REG 6.9] Segfault in {{QtWebEngineCore::NativeSkiaOutputDeviceOpenGL::texture()}} with offscreen platform

$ QT_QPA_PLATFORM=offscreen gdb -ex r --args ./simplebrowser
[...]
qt.webenginecontext: 
 Chromium GL Backend: angle 
 Chromium ANGLE Backend: gl-egl 
 Chromium Vulkan Backend: disabled 
 
 QSG RHI Backend: OpenGL 
 QSG RHI Backend Supported: yes 
 GPU Vendor: Intel 
 
 Using GLX: yes 
 Using EGL: no 
 Using Shared GL: no 
 Init Parameters:
  *  application-name simplebrowser
  *  browser-subprocess-path /home/florian/proj/qt/bin/6.9.0/gcc_64/libexec/QtWebEngineProcess
  *  disable-blink-features WebOTP
  *  disable-features EyeDropper,AttributionReportingCrossAppWebOverride,BackgroundFetch,InstalledApp,WebOTP,WebPayments,WebUSB
  *  disable-setuid-sandbox 
  *  disable-speech-api 
  *  enable-features NetworkServiceInProcess2,TracingServiceInProcess
  *  in-process-gpu 
  *  touch-events auto
  *  use-angle gl-egl
  *  use-gl angle

[...]

Thread 1 "simplebrowser" received signal SIGSEGV, Segmentation fault.
QOpenGLContext::functions (this=0x0) at /home/qt/work/qt/qtbase/src/gui/kernel/qopenglcontext.cpp:536
warning: 536	/home/qt/work/qt/qtbase/src/gui/kernel/qopenglcontext.cpp: No such file or directory
(gdb) bt
#0  QOpenGLContext::functions (this=0x0)
    at /home/qt/work/qt/qtbase/src/gui/kernel/qopenglcontext.cpp:536
#1  0x00007fffec6d0ca5 in QtWebEngineCore::NativeSkiaOutputDeviceOpenGL::texture ()
    at /home/qt/work/qt/qtwebengine/src/core/compositor/native_skia_output_device_opengl.cpp:153
#2  0x00007fffec66cb2a in QtWebEngineCore::RenderWidgetHostViewQtDelegateItem::updatePaintNode ()
    at /home/qt/work/qt/qtwebengine/src/core/render_widget_host_view_qt_delegate_item.cpp:397
#3  0x00007fffeb4cf328 in QQuickWindowPrivate::updateDirtyNode (this=this@entry=0x555556073c90, 
    item=item@entry=0x5555560e3040)
    at /home/qt/work/qt/qtdeclarative/src/quick/items/qquickwindow.cpp:2271
#4  0x00007fffeb4cfca4 in QQuickWindowPrivate::updateDirtyNodes (this=this@entry=0x555556073c90)
    at /home/qt/work/qt/qtdeclarative/src/quick/items/qquickwindow.cpp:2013
#5  0x00007fffeb4d397e in QQuickWindowPrivate::syncSceneGraph (this=0x555556073c90)
    at /home/qt/work/qt/qtdeclarative/src/quick/items/qquickwindow.cpp:561
#6  0x00007fffeb45d492 in QQuickRenderControl::sync (this=<optimized out>)
    at /home/qt/work/qt/qtdeclarative/src/quick/items/qquickrendercontrol.cpp:378
#7  0x00007ffff75c3fb0 in QQuickWidgetPrivate::render (this=0x55555621d890, 
    needsSync=needsSync@entry=true)
    at /home/qt/work/qt/qtdeclarative/src/quickwidgets/qquickwidget.cpp:418
#8  0x00007ffff75c411a in QQuickWidgetPrivate::renderSceneGraph (this=0x55555621d890)
    at /home/qt/work/qt/qtdeclarative/src/quickwidgets/qquickwidget.cpp:445
#9  0x00007fffe93d72b5 in QObject::event (this=0x5555560cf340, e=0x7fffffffd430)
    at /home/qt/work/qt/qtbase/src/corelib/kernel/qobject.cpp:1462
#10 0x00007ffff77913db in QApplicationPrivate::notify_helper (this=<optimized out>, 
    receiver=0x5555560cf340, e=0x7fffffffd430)
    at /home/qt/work/qt/qtbase/src/widgets/kernel/qapplication.cpp:3297
#11 0x00007fffe937ed2a in QCoreApplication::notifyInternal2 (receiver=0x5555560cf340, 
    event=0x7fffffffd430) at /home/qt/work/qt/qtbase/src/corelib/kernel/qcoreapplication.cpp:1122
#12 0x00007fffe937ef4d in QCoreApplication::sendEvent (receiver=<optimized out>, event=<optimized out>)
    at /home/qt/work/qt/qtbase/src/corelib/kernel/qcoreapplication.cpp:1564
#13 0x00007fffe952f4ba in QTimerInfoList::activateTimers (this=0x5555555d9860)
    at /home/qt/work/qt/qtbase/src/corelib/kernel/qtimerinfo_unix.cpp:426
#14 0x00007fffe9661c84 in timerSourceDispatch (source=<optimized out>)
    at /home/qt/work/qt/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:152
#15 idleTimerSourceDispatch (source=<optimized out>)
    at /home/qt/work/qt/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:199
#16 0x00007fffe88a1559 in g_main_dispatch (context=0x5555555d95e0) at ../glib/glib/gmain.c:3357
#17 0x00007fffe8904257 in g_main_context_dispatch_unlocked (context=0x5555555d95e0)
    at ../glib/glib/gmain.c:4208
#18 g_main_context_iterate_unlocked.isra.0 (context=context@entry=0x5555555d95e0, block=block@entry=1, 
    dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/glib/gmain.c:4273
#19 0x00007fffe88a0a55 in g_main_context_iteration (context=0x5555555d95e0, may_block=1)
    at ../glib/glib/gmain.c:4338
#20 0x00007fffe9661e4e in QEventDispatcherGlib::processEvents (this=0x5555555d3af0, flags=...)
    at /home/qt/work/qt/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:399
#21 0x00007fffe938c142 in QEventLoop::exec (this=this@entry=0x7fffffffd760, flags=..., flags@entry=...)
    at /home/qt/work/qt/qtbase/src/corelib/global/qflags.h:77
#22 0x00007fffe9387d1a in QCoreApplication::exec ()
    at /home/qt/work/qt/qtbase/src/corelib/global/qflags.h:77
#23 0x000055555556879a in main ()

qt.webenginecontext: 
 Chromium GL Backend: desktop 
 Chromium ANGLE Backend: disabled 
 Chromium Vulkan Backend: disabled 
 
 QSG RHI Backend: OpenGL 
 QSG RHI Backend Supported: yes 
 GPU Vendor: Intel 
 
 Using GLX: yes 
 Using EGL: no 
 Using Shared GL: yes 
 Using Software Dynamic GL: no 
 Surface Type: OpenGL 
 Surface Profile: NoProfile 
 Surface Version: 2.0
 
 Init Parameters:
  *  application-name simplebrowser
  *  browser-subprocess-path /usr/lib/qt6/QtWebEngineProcess
  *  disable-blink-features WebOTP
  *  disable-features InstalledApp,EyeDropper,BackgroundFetch,WebOTP,WebPayments,WebUSB
  *  disable-setuid-sandbox 
  *  disable-speech-api 
  *  enable-features NetworkServiceInProcess2,TracingServiceInProcess
  *  in-process-gpu 
  *  use-gl desktop

This plugin does not support propagateSizeHints()
Compositor returned null texture
This plugin does not support propagateSizeHints()
Compositor returned null texture
Compositor returned null texture
Compositor returned null texture
Compositor returned null texture