[Webkit-unassigned] [Bug 226081] New: [GStreamer] WebProcess crashes when certain elements are missing

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=226081

            Bug ID: 226081
           Summary: [GStreamer] WebProcess crashes when certain elements
                    are missing
           Product: WebKit
           Version: WebKit Local Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit Misc.
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: aperez at igalia.com

Some GStreamer elements like “autoaudiosink” are expected to be available, and
the media playback code does not check whether their instantiation succeeded
before using pointers that can be null if those elements are not available for
some reason.

For example: Source/WebCore/platform/graphics/gstreamer/GStreamerAudioMixer.cpp:51
instantiates “autoaudiosink”, then adds it to a pipeline without doing any checks.

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