Crash report

import sqlite3
cx = sqlite3.connect(":memory:")
del cx.autocommit

set_autocommit() in Modules/_sqlite/connection.c passes the value to autocommit_converter(), which dereferences it in Py_IsTrue().
Deleting row_factory and text_factory of a connection is already rejected with an AttributeError (gh-149738); autocommit should be rejected too.

The same code is in 3.13, 3.14 and 3.15.

Linked PRs

• gh-156100: Fix crashes in the sqlite3 Connection.autocommit setter #156104
• [3.15] gh-156100: Fix crashes in the sqlite3 Connection.autocommit setter (GH-156104) #156151
• [3.14] gh-156100: Fix crashes in the sqlite3 Connection.autocommit setter (GH-156104) #156152
• [3.13] gh-156100: Fix crashes in the sqlite3 Connection.autocommit setter (GH-156104) #156155