[gs-bugs] [Bug 691532] New: jbig2dec segfault caused by new image reference counts

[bugzilla-daemon at ghostscript.com]

http://bugs.ghostscript.com/show_bug.cgi?id=691532

           Summary: jbig2dec segfault caused by new image reference counts
           Product: Ghostscript
           Version: 8.71
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P4
         Component: JPX/JBIG2 encode/decode
        AssignedTo: masaki.ushizaka at artifex.com
        ReportedBy: twaugh at redhat.com
         QAContact: gs-bugs at ghostscript.com
   Estimated Hours: 0.0


Created an attachment (id=6625)
 --> (http://bugs.ghostscript.com/attachment.cgi?id=6625)
ghostscript-jbig2-image-refcount.patch

This Fedora bug applies to vanilla ghostscript-8.71:

https://bugzilla.redhat.com/show_bug.cgi?id=621569

Here is a link to the input PDF document:

https://bugzilla.redhat.com/attachment.cgi?id=334044

gs -dSAFER -dCompatibilityLevel=1.4 -q -dNOPAUSE \
  -dBATCH -sDEVICE=pdfwrite -sstdout=%stderr \
  -sOutputFile=2009-41414141.pdf.pdf -dSAFER \
  -dCompatibilityLevel=1.4 -c .setpdfwrite \
  -f 2009-41414141.pdf

I've attached the patch that fixes it for me.

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