[Webkit-unassigned] [Bug 177297] New: [GTK] WebKitWebProcess crashed with SIGSEGV in _priv_gst_element_state_changed()

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=177297

            Bug ID: 177297
           Summary: [GTK] WebKitWebProcess crashed with SIGSEGV in
                    _priv_gst_element_state_changed()
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: PC
                OS: Linux
            Status: NEW
          Keywords: Gtk
          Severity: Normal
          Priority: P3
         Component: WebKit Gtk
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: amribrahim1987 at hotmail.com
                CC: bugs-noreply at webkitgtk.org

Created attachment 321419

  --> https://bugs.webkit.org/attachment.cgi?id=321419&action=review

Stacktrace

It crashed while I was opening a website of an online course on edx.org. The website has a video and JavaScript elements.

Downstream bug: https://bugs.launchpad.net/bugs/1718631

DistroRelease: Ubuntu 16.04
Package: libwebkit2gtk-4.0-37 2.16.6-0ubuntu0.16.04.1

StacktraceTop:
 _priv_gst_element_state_changed (element=element at entry=0x7fc36c10e0d0, oldstate=oldstate at entry=GST_STATE_PAUSED, newstate=newstate at entry=GST_STATE_READY, pending=pending at entry=GST_STATE_VOID_PENDING) at gstelement.c:2279
 gst_element_continue_state (element=element at entry=0x7fc36c10e0d0, ret=ret at entry=GST_STATE_CHANGE_SUCCESS) at gstelement.c:2382
 gst_element_change_state (element=element at entry=0x7fc36c10e0d0, transition=<optimized out>) at gstelement.c:2687
 gst_element_continue_state (element=element at entry=0x7fc36c10e0d0, ret=ret at entry=GST_STATE_CHANGE_SUCCESS) at gstelement.c:2356
 gst_element_change_state (element=element at entry=0x7fc36c10e0d0, transition=transition at entry=GST_STATE_CHANGE_PLAYING_TO_PAUSED) at gstelement.c:2687

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