How to protect IC for VCC surge?
Trying to clip this mess after the fact is the wrong way to start attacking this problem.  The real problem is that there is loads of crap on the power supply.  Find out why that is happening and deal with it at the source.

Is this caused by ground bounce?  If so, figure out why and address it.  In that case it will be affecting other things too.

Is it caused by a bad power supply?  If so, fix it.

Is it caused by improperly handled inductive kickback?  If so, redesign the offending circuit.

Is it caused by an external circuit sharing the power supply? If so, consider adding a separate (robust) power supply for the external circuit.

In any case, you need to pop up a couple of levels and look at the bigger picture.  You are not ready yet to just treat the symptom at the point of consumption.