[gs-bugs] [Bug 691892] New: dev_draw.c doesn't adhere to cliptext's accumulation contract

bugzilla-daemon at ghostscript.com bugzilla-daemon at ghostscript.com
Mon Jan 17 12:09:14 UTC 2011


http://bugs.ghostscript.com/show_bug.cgi?id=691892

           Summary: dev_draw.c doesn't adhere to cliptext's accumulation
                    contract
           Product: MuPDF
           Version: unspecified
          Platform: PC
               URL: http://code.google.com/p/sumatrapdf/issues/detail?id=1
                    174
        OS/Version: Windows 7
            Status: NEW
          Severity: normal
          Priority: P4
         Component: fitz
        AssignedTo: tor.andersson at artifex.com
        ReportedBy: zeniko at gmail.com
         QAContact: gs-bugs at ghostscript.com
   Estimated Hours: 0.0


http://www.embeddedcomputingsystems.com/emag/in_design/1012/docs/SiD_Dec2010.pdf
crashes MuPDF due to not taking cliptext calls with accumulate==2 into account
and thus underflowing its stack in popclip (which also happens for each
cliptext call, not just those with accumulate < 2).

Our work-around: http://code.google.com/p/sumatrapdf/source/detail?r=2651

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