[Python-checkins] gh-131316: fix invalid `DECREF` in `_md5.md5.copy()` (#135291)

[picnixz]

https://github.com/python/cpython/commit/c19e36cc4eabacaacc359e8b2550b10c2965a31a
commit: c19e36cc4eabacaacc359e8b2550b10c2965a31a
branch: main
author: Bénédikt Tran <10796600+picn...@users.noreply.github.com>
committer: picnixz <10796600+picn...@users.noreply.github.com>
date: 2025-06-09T09:10:32Z
summary:

gh-131316: fix invalid `DECREF` in `_md5.md5.copy()` (#135291)

This amends commit 261633bd3f48607478f50d12d8025cd4bb36f6f4.

files:
M Modules/md5module.c

diff --git a/Modules/md5module.c b/Modules/md5module.c
index 9b5ea2d6e02605..08dbcd2cbce844 100644
--- a/Modules/md5module.c
+++ b/Modules/md5module.c
@@ -120,7 +120,7 @@ MD5Type_copy_impl(MD5object *self, PyTypeObject *cls)
     newobj->hash_state = Hacl_Hash_MD5_copy(self->hash_state);
     LEAVE_HASHLIB(self);
     if (newobj->hash_state == NULL) {
-        Py_DECREF(self);
+        Py_DECREF(newobj);
         return PyErr_NoMemory();
     }
     return (PyObject *)newobj;

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