Bug 75469

Summary:	virtualbox 4.3.6 VBoxTestOGL segfaults when testing 2D capabilities
Product:	xorg	Reporter:	farmboy0+freedesktop
Component:	* Other	Assignee:	Xorg Project Team <xorg-team>
Status:	RESOLVED NOTOURBUG	QA Contact:	Xorg Project Team <xorg-team>
Severity:	normal
Priority:	medium
Version:	unspecified
Hardware:	x86-64 (AMD64)
OS:	Linux (All)
Whiteboard:
i915 platform:		i915 features:

Description farmboy0+freedesktop 2014-02-24 21:23:41 UTC

Backtrace from GDB:
#0  XVisualIDFromVisual (visual=0x500000031) at /var/tmp/portage/x11-libs/libX11-1.6.2/work/libX11-1.6.2/src/Misc.c:60
#1  0x00007ffff665e6ee in qt_x11_getX11InfoForWindow (xinfo=0x7161a0, att=...) at kernel/qwidget_x11.cpp:3116
#2  0x00007ffff665e795 in qt_x11_getX11InfoForWindow (xinfo=<optimized out>, a=...) at kernel/qwidget_x11.cpp:438
#3  0x00007ffff665f9fb in QWidgetPrivate::create_sys (this=0x715fc0, window=77594626, initializeWindow=true, 
    destroyOldWindow=true) at kernel/qwidget_x11.cpp:599
#4  0x00007ffff661698f in QWidget::create (this=0x6b9970, window=77594626, initializeWindow=true, destroyOldWindow=true)
    at kernel/qwidget.cpp:1513
#5  0x00007ffff6c41289 in QEgl::createSurface (device=0x6b9980, config=0x7b9740, properties=0x0) at egl/qegl_x11.cpp:410
#6  0x00007ffff619366a in QGLContext::chooseContext (this=0x6bc3d0, shareContext=0x0) at qgl_x11egl.cpp:244
#7  0x00007ffff61180f2 in QGLContext::create (this=0x6bc3d0, shareContext=0x0) at qgl.cpp:3348
#8  0x00007ffff6193a27 in QGLWidget::setContext (this=0x6b9970, context=0x6bc3d0, shareContext=<optimized out>, 
    deleteOldContext=true) at qgl_x11egl.cpp:322
#9  0x00007ffff61177af in QGLWidgetPrivate::initContext (this=0x715fc0, context=0x6bc3d0, shareWidget=0x0) at qgl.cpp:5603
#10 0x00007ffff6193ab7 in QGLWidgetPrivate::init (this=0x715fc0, context=<optimized out>, shareWidget=<optimized out>)
    at qgl_x11egl.cpp:339
#11 0x00007ffff6117f86 in QGLWidget::QGLWidget (this=0x6b9970, parent=<optimized out>, shareWidget=0x0, f=...) at qgl.cpp:3834
#12 0x000000000040f9a3 in VBoxGLTmpContext::VBoxGLTmpContext (this=0x7fffffffd8b0)
    at /var/tmp/portage/app-emulation/virtualbox-4.3.6/work/VirtualBox-4.3.6/src/VBox/Frontends/VirtualBox/src/VBoxGLSupportInfo.cpp:680
#13 0x0000000000401e26 in vboxCheck2DVideoAccelerationSupported ()
    at /var/tmp/portage/app-emulation/virtualbox-4.3.6/work/VirtualBox-4.3.6/src/VBox/HostServices/SharedOpenGL/OpenGLTest/OpenGLTestApp.cpp:87
#14 main (argc=<optimized out>, argv=0x6253a0)
    at /var/tmp/portage/app-emulation/virtualbox-4.3.6/work/VirtualBox-4.3.6/src/VBox/HostServices/SharedOpenGL/OpenGLTest/OpenGLTestApp.cpp:346

Comment 1 Alan Coopersmith 2014-02-25 04:47:26 UTC

That stack trace shows an invalid pointer being passed to XVisualIDFromVisual,
suggesting the bug is up the stack in the Qt or VirtualBox code, not libX11.

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