conf/yaml: limit recursion depth while paring YAML - v1 #4799
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A deeply nested YAML file can cause a stack-overflow while
reading in the configuration to do the recursive parser. Limit
the recursion level to something sane (128) to prevent this
from happening.
The default Suricata configuration has a recursion level of 128
so there is still lots of room to grow (not that we should).
Redmine ticket:
https://redmine.openinfosecfoundation.org/issues/3630
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