[Webkit-unassigned] [Bug 258971] New: VideoFrameMetadataGStreamer.cpp - SEGFAULT after capture from video stream

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=258971

            Bug ID: 258971
           Summary: VideoFrameMetadataGStreamer.cpp - SEGFAULT after
                    capture from video stream
           Product: WebKit
           Version: WebKit Local Build
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebCore Misc.
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: thomas.kerin at gmail.com

Created attachment 466971

  --> https://bugs.webkit.org/attachment.cgi?id=466971&action=review

GDB log of 'bt full' command

I have a cog instance running our application where we display webcam footage in the browser window and allow the user to take a picture.

wpewebkit: 2.38.6
os: buildroot 85a9a3f0e644556b0cd8f2126c6efa5d32695704

A few seconds after capturing the image we experience a crash that seems localized to this location: https://github.com/WebKit/WebKit/blob/wpewebkit-2.38.6/Source/WebCore/platform/graphics/gstreamer/VideoFrameMetadataGStreamer.cpp#L126 The crash isn't very elusive, at the moment it happens every time I try.

I've rebuilt with debug symbols and got a core dump, which allowed me to log the full backtrace (attached)

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