Bug report

Bug description:

MD5 and SHA* objects free their HACL* state before they are GC-untracked. In addition, I believe that MD5 and SHA* objects do NOT need to actually be GC-tracked because they do not contain anything other than a plain HACL* state pointer which is not a Python object (but that's a separate issue).

CPython versions tested on:

CPython main branch

Operating systems tested on:

No response

Linked PRs

• gh-155833: GC-untrack MD5/SHA* objects before freeing the HACL* state #155834
• [3.15] gh-155833: GC-untrack MD5/SHA* objects before freeing the HACL* state (GH-155834) #159789
• [3.14] gh-155833: GC-untrack MD5/SHA* objects before freeing the HACL* state (GH-155834) #159790