[gs-bugs] [Bug 689954] MOAB-06-01-2007.pdf eats up all cpu and stalls ghostscript.

[bugs.ghostscript.com-bugzilla-daemon at ghostscript.com]

http://bugs.ghostscript.com/show_bug.cgi?id=689954





------- Additional Comments From alex.cherepanov at artifex.com  2008-07-28 22:00 -------
Created an attachment (id=4247)
 --> (http://bugs.ghostscript.com/attachment.cgi?id=4247&action=view)
patch

Check for loops in the 'page tree' but accept an acyclic graph.
Report /syntaxerror and terminate the job when the loop is detected.

Regression testing shows no differences. We don't have other files so badly
broken.




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