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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
1 changed files with 1 additions and 0 deletions
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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); auto lookup_list_slice = m_slice.slice(header.lookup_list_offset);
if (lookup_list_slice.size() < sizeof(LookupList)) { if (lookup_list_slice.size() < sizeof(LookupList)) {
dbgln_if(OPENTYPE_GPOS_DEBUG, "GPOS table lookup list slice is too small"); 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()); auto const& lookup_list = *bit_cast<LookupList const*>(lookup_list_slice.data());