gh-125984: fix UAF on `fut->fut_{callback,context}0` due to an evil `loop.__getattribute__`#126003

kumaraditya303 merged 3 commits intopython:mainpython/cpython:mainfrom

picnixz:fix/future-uaf-head-callback-125984picnixz/cpython:fix/future-uaf-head-callback-125984Copy head branch name to clipboard