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LibGfx/OpenType: Fix bound-check

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gohai 2023-03-17 22:41:51 +08:00 committed by Andreas Kling
parent 3918a8492b
commit d5577002d5
Notes: sideshowbarker 2024-07-17 06:40:21 +09:00 
Author: https://github.com/gohai 🔰
Commit: https://github.com/SerenityOS/serenity/commit/d5577002d5
Pull-request: https://github.com/SerenityOS/serenity/pull/17891
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Userland/Libraries/LibGfx/Font/OpenType/Font.cpp
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@ -1005,6 +1005,7 @@ Optional<i16> GPOS::glyph_kerning(u16 left_glyph_id, u16 right_glyph_id) const
auto lookup_list_slice = m_slice.slice(header.lookup_list_offset);
if (lookup_list_slice.size() < sizeof(LookupList)) {
dbgln_if(OPENTYPE_GPOS_DEBUG, "GPOS table lookup list slice is too small");
return {};
}
auto const& lookup_list = *bit_cast<LookupList const*>(lookup_list_slice.data());