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List:       cairo
Subject:    [cairo] Pattern with large translation
From:       cecashon () aol ! com
Date:       2020-11-11 14:16:42
Message-ID: 531657821.4501234.1605104202234 () mail ! yahoo ! com
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https://gitlab.freedesktop.org/cairo/cairo/-/issues/238

This bug is in cairo-image-source.c, _cairo_image_source_create_for_pattern(), \
_pixman_image_for_pattern(). The translation variables src_x and src_y can overflow \
the 2 byte int range causing a CAIRO_STATUS_NO_MEMORY.

Maybe a different error can be returned? It is kind of a show stopper. Maybe a less \
critical error can be set if the translation is out of bounds?

I haven't figured out why I am getting this error by rotating patterns. Pixman might \
return null for other reasons besides out of memory.

Eric


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<div style="color:black;font: 10pt arial;"><font size="2"><br>
https://gitlab.freedesktop.org/cairo/cairo/-/issues/238<br>
<br>
This bug is in cairo-image-source.c, _cairo_image_source_create_for_pattern(), \
_pixman_image_for_pattern(). The translation variables src_x and src_y can overflow \
the 2 byte int range causing a CAIRO_STATUS_NO_MEMORY.<br> <br>
Maybe a different error can be returned? It is kind of a show stopper. Maybe a less \
critical error can be set if the translation is out of bounds?<br> <br>
I haven't figured out why I am getting this error by rotating patterns. Pixman might \
return null for other reasons besides out of memory.<br> <br>
Eric</font></div>



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