[Webkit-unassigned] [Bug 62249] New: [GTK] Crash observed with nspluginwrapper and flash

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=62249

           Summary: [GTK] Crash observed with nspluginwrapper and flash
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Keywords: Gtk
          Severity: Normal
          Priority: P3
         Component: WebKit Gtk
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: mrobinson at webkit.org


Here is the stack trace:


Program terminated with signal 11, Segmentation fault.
#0  0x00007f8f5810cd0e in WebCore::Widget::isVisible (this=0x0) at ../../Source/WebCore/platform/Widget.h:177
177        bool isVisible() const { return m_selfVisible && m_parentVisible; } // Whether or not we are actually visible.
(gdb) where
#0  0x00007f8f5810cd0e in WebCore::Widget::isVisible (this=0x0) at ../../Source/WebCore/platform/Widget.h:177
#1  0x00007f8f58147ad3 in WebCore::PluginView::invalidateWindowlessPluginRect (this=0x0, rect=...) at ../../Source/WebCore/plugins/PluginView.cpp:1225
#2  0x00007f8f579859c9 in WebCore::PluginView::invalidateRect (this=0x0, rect=0x7fff9dd8bc80) at ../../Source/WebCore/plugins/gtk/PluginViewGtk.cpp:711
#3  0x00007f8f5812ce15 in NPN_InvalidateRect (instance=0x0, invalidRect=0x7fff9dd8bc80) at ../../Source/WebCore/plugins/npapi.cpp:124
#4  0x00007f8eed3b6bf0 in ?? () from /var/lib/flashplugin-installer/npwrapper.libflashplayer.so
#5  0x00007f8eed3b7955 in ?? () from /var/lib/flashplugin-installer/npwrapper.libflashplayer.so
#6  0x00007f8eed3c1c75 in ?? () from /var/lib/flashplugin-installer/npwrapper.libflashplayer.so
#7  0x00007f8eed3c1e67 in ?? () from /var/lib/flashplugin-installer/npwrapper.libflashplayer.so
#8  0x00007f8eed3c2013 in ?? () from /var/lib/flashplugin-installer/npwrapper.libflashplayer.so
#9  0x00007f8eed3c3b08 in ?? () from /var/lib/flashplugin-installer/npwrapper.libflashplayer.so
#10 0x00007f8eed3b738c in ?? () from /var/lib/flashplugin-installer/npwrapper.libflashplayer.so
#11 0x00007f8f534f1bcd in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007f8f534f23a8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#13 0x00007f8f534f29f2 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#14 0x00007f8f56addd9d in gtk_main () from /usr/lib/libgtk-3.so.0
#15 0x000000000042f2a4 in main (argc=1, argv=0x7fff9dd91268) at ephy-main.c:747

It appears as though nspluginwrapper is really badly behaved here and sends a null NPInstance.

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