[3.8] closes bpo-41533: Fix a potential memory leak when allocating a stack (GH-21847) #22015
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Free the stack allocated in va_build_stack if do_mkstack fails
and the stack is not a small_stack
(cherry picked from commit 75c80b0)
Co-authored-by: Tony Solomonik tony.solomonik@gmail.com
https://bugs.python.org/issue41533
Automerge-Triggered-By: @Mariatta