Race hazard deleting using CTID?

I believe that the following statement was originally suggested by Tom Lane; I got it from Pavel Stehule's PostgreSQL Tips page.
My question is, does this code contain a race hazard, because the list from the SELECT might get changed by another session before the DELETE uses it?

delete from del where ctid = any(array(select ctid from del limit 10))

If so, am I correct to think that adding FOR UPDATE to create the version below would eliminate the hazard?

delete from del where ctid = any(array(select ctid from del limit 10 for update))

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Peter Headland
Architect
Actuate Corporation