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LibWasm: Calculate the max data segment size correctly

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This is given in pages, we need to first convert to bytes before
comparing with bytes.
This commit is contained in:
Ali Mohammad Pur
2022-10-24 03:19:20 +03:30
committed by Linus Groh
parent 18e2bc635f
commit 21c6e4c257
1 changed files with 1 additions and 1 deletions
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2
Userland/Libraries/LibWasm/AbstractMachine/AbstractMachine.cpp
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@@ -345,7 +345,7 @@ InstantiationResult AbstractMachine::instantiate(Module const& module, Vector<Ex
auto address = main_module_instance.memories()[data.index.value()];
if (auto instance = m_store.get(address)) {
if (auto max = instance->type().limits().max(); max.has_value()) {
if (*max < data.init.size() + offset) {
if (*max * Constants::page_size < data.init.size() + offset) {
instantiation_result = InstantiationError {
String::formatted("Data segment attempted to write to out-of-bounds memory ({}) of max {} bytes",
data.init.size() + offset, instance->type().limits().max().value())