There is no risk. Because there is no consumption, the bank will not deduct money from your savings card or bank card. Moreover, it is related to the reputation of the bank, and there will be no mistakes in arbitrary deduction within the bank. And if you lose your credit card, if your credit card needs a password, there won't be much problem. But if the credit card can be used without a password, it may be risky. But banks generally don't have card insurance services, so don't worry too much.

Generally speaking, there is generally no risk in associating a savings card or a salary card with a credit card, except in special circumstances, which is not absolute.