Here are a small test case to reproduce the crash with cairo.
cairopdf.c (text/plain), 586 bytes, created by Peng Wu on 2015-10-21 03:03:30 UTC
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Creator: Peng Wu
Created: 2015-10-21 03:03:30 UTC
Size: 586 bytes
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Attachments on bug 92561: 119023

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