[3.10] gh-148395: Fix a possible UAF in {LZMA,BZ2}Decompressor (GH-148396)#148505

pablogsal merged 2 commits intopython:3.10python/cpython:3.10from

StanFromIreland:backport-8fc66ae-3.10StanFromIreland/cpython:backport-8fc66ae-3.10Copy head branch name to clipboard