Filelock: ReadWriteLock Follows A Symlink At The Lock Path Into SQLite

Summary "ReadWriteLock" and "AsyncReadWriteLock" resolve the lock path with "pathlib.Path.resolve" and pass it to "sqlite3.connect" without refusing a symlink. A local user who can create names in the lock's directory, such as "/tmp" or a shared cache, can plant a symlink at the lock path and mak...