[3.7] bpo-34408: Prevent a null pointer dereference and resource leakage in `PyInterpreterState_New()` (GH-8767) by pablogsal · Pull Request #13237

[3.7] bpo-34408: Prevent a null pointer dereference and resource leakage in `PyInterpreterState_New()` (GH-8767) by pablogsal · Pull Request #13237 · python/cpython

…age in `PyInterpreterState_New()` (pythonGH-8767)

* A pointer in `PyInterpreterState_New()` could have been `NULL` when being dereferenced.

* Memory was leaked in `PyInterpreterState_New()` when taking some error-handling code path.
(cherry picked from commit 95d630e)

Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>