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LibWasm: Improve element validation and instantiation

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Diego
2024-06-16 06:42:00 -07:00
committed by Ali Mohammad Pur
parent 4c3071c7c2
commit 3225e6fad2
3 changed files with 13 additions and 7 deletions
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3
Userland/Libraries/LibWasm/AbstractMachine/Validator.cpp
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@@ -224,6 +224,9 @@ ErrorOr<void, ValidationError> Validator::validate(ElementSection const& section
[](ElementSection::Passive const&) -> ErrorOr<void, ValidationError> { return {}; },
[&](ElementSection::Active const& active) -> ErrorOr<void, ValidationError> {
TRY(validate(active.index));
auto table = m_context.tables[active.index.value()];
if (table.element_type() != segment.type)
return Errors::invalid("active element reference type"sv);
auto expression_result = TRY(validate(active.expression, { ValueType(ValueType::I32) }));
if (!expression_result.is_constant)
return Errors::invalid("active element initializer"sv);