Re: 2 Segmentation faults and 1 endless loop caused by malformed Font files.

Hi Hiromi

Of all your files only 21_broken.ttf is obviously broken. You information is=
 interesting but impossible to reproduce without detailed instructions and b=
ackytaces.

Please file separate contained reports, one issue at a time. You need to wri=
te a small program to reproduce the crashes. Or, alternatively, try to crash=
 our demo programs ftview, ftmulti, ftgrid, ftstring, ftdump, ftlint.

So far I was able to examine all you fonts without errors, except one. Pleas=
e understand that Firefox crashes belong to Firefox until you can demonstrat=
e them separately.

Alexei

> On Feb 7, 2026, at 12:11, Werner LEMBERG <[email protected]> wrote:
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> =EF=BB=BF
>> I made a few font files the will cause 2 segmentation faults and 1
>> endless loop.  [...]
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> Thanks, will have a look soon.  Does this crash with the current
> FreeType development version?
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>> There is zip file with 18 mb and the password is 12345
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> The next time, please do not send such large attachments to our
> mailing lists!  Instead, you should open an issue in our tracker at
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>  https://gitlab.freedesktop.org/freetype/freetype/-/issues
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> where you can also set the confidentiality flag if necessary.
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>    Werner
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