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* src/base/ftbitmap.c (FT_Bitmap_Blend): Check final dimensions.

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Fixes #1413.
This commit is contained in:
Alexei Podtelezhnikov 2026-05-03 13:21:19 -04:00
parent 53850f3cd5
commit b6bcd2177f
1 changed files with 8 additions and 0 deletions
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8
src/base/ftbitmap.c
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@ -838,6 +838,14 @@
fbx.yMin = FT_MIN( sbx.yMin, tbx.yMin );
fbx.xMax = FT_MAX( sbx.xMax, tbx.xMax );
fbx.yMax = FT_MAX( sbx.yMax, tbx.yMax );
/* sanity check */
if ( fbx.xMin < -0x10000 || fbx.xMax >= 0x10000 ||
fbx.yMin < -0x10000 || fbx.yMax >= 0x10000 )
{
FT_TRACE5(( "FT_Bitmap_Blend: final dimension overflow\n" ));
return FT_THROW( Invalid_Argument );
}
}
else
fbx = sbx;