When you say corruption, do you mean that the data was corrupted afterwards? Or just that the standby spewed errors until you restarted with adjusted limits?
We didn't do a proper low level check to verify that the database was corrupted, but the symtopms took us to belive so: after a restart the system crashed almost immediately with and 'invalid memory alloc request size', no matter the user limits.
There is a backup still available if any test can be of interest.