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Re: [ft-devel] Dynamic limits for TrueType bytecode execution

From: Werner LEMBERG
Subject: Re: [ft-devel] Dynamic limits for TrueType bytecode execution
Date: Thu, 01 Jun 2017 07:13:10 +0200 (CEST)

> a problematic font was encountered by reporter of this downstream bug:
> The font there is Padauk-Bold.ttf (version 3.002 (it works with current
> upstream)). It has exc->cvtSize == 35 so the exc->loopcall_counter_max
> == 350 but exc->loopcall_counter == 523.
> Do you consider this a problem of the font (which is fixed in
> current master of the font - but it doesn't seem that they targeted
> this issue specifically) or something because of which the limits
> should be adjusted?

Sigh, the culprit is (again) a buggy version of ttfautohint.  Given
that I'm the author, I *have* to fix this in FreeType :-)

A patch is now in git.  Thanks for the report!


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