https://bugs.winehq.org/show_bug.cgi?id=55908
--- Comment #18 from Bernhard Übelacker bernhardu@mailbox.org --- (In reply to Fabian Maurer from comment #17)
I'm pretty sure not. See
You are right. And I was searching a little further in #55761. And found something silmilar, a clearing of the lower half what later becomes a size given to malloc. Seems the upper half might be usually zero on windows.