A couple of thoughts.&nbsp;<br />1. I would suggest that ASSERT should not be the only protection for an invalid operation as ASSERT is usually disabled on release builds.&nbsp;&nbsp;<br />2. We do have a library to make this more explicit and common.&nbsp;&nbsp;<a href="https://github.com/tianocore/edk2/blob/master/MdePkg/Include/Library/SafeIntLib.h#L548">https://github.com/tianocore/edk2/blob/master/MdePkg/Include/Library/SafeIntLib.h#L548</a><br /><br />Thanks