* src/base/ftglyph.c (FT_Get_Glyph): Check `slot->advance'.
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2017-06-01 Werner Lemberg <wl@gnu.org>
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* src/base/ftglyph.c (FT_Get_Glyph): Check `slot->advance'.
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2017-06-01 Werner Lemberg <wl@gnu.org>
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[psaux] 32bit integer overflow tun-time errors (#46149).
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@ -408,6 +408,19 @@
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goto Exit;
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/* copy advance while converting 26.6 to 16.16 format */
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if ( slot->advance.x >= 0x8000L * 64 ||
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slot->advance.x <= -0x8000L * 64 )
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{
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FT_ERROR(( "FT_Get_Glyph: advance width too large\n" ));
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return FT_THROW( Invalid_Argument );
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}
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if ( slot->advance.y >= 0x8000L * 64 ||
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slot->advance.y <= -0x8000L * 64 )
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{
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FT_ERROR(( "FT_Get_Glyph: advance height too large\n" ));
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return FT_THROW( Invalid_Argument );
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}
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glyph->advance.x = slot->advance.x * 1024;
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glyph->advance.y = slot->advance.y * 1024;
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