jimingham wrote:
Maybe I'm missing something. In the host case, m_address is set to invalid,
but m_value has the address in it and is a host address, so then we get to:
// m_address could be invalid but we could still have a local buffer
// containing the dynamic value.
if ((m_address.IsValid() ||
m_value.GetValueType() == Value::ValueType::HostAddress) &&
m_dynamic_type_info) {
// The variable value is in the Scalar value inside the m_value. We can
// point our m_data right to it.
m_error = m_value.GetValueAsData(&exe_ctx, m_data, GetModule().get());
So that's going to try to call GetValueAsData on a value you've added the
dynamic type info to, and that type could be bigger than the static value,
causing us to read too much from the data buffer.
https://github.com/llvm/llvm-project/pull/125143
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