About commit 3671c9e99179b22b42acb61bfa751ab93714fdd2

[Anatoliy Atanasov]

Hi Tridge, 

In schema_inferiors.c code, in every place where you get a pointer from dsdb_class_by_lDAPDisplayName there is a possibility to return NULL.

There are some other places in the file where this can happen:
In schema_subclasses() at line 84
schema_posssuperiors() line 106
I haven't got a chance to figure out how to fix it properly so my patch was basically if the pointer is NULL to skip the rest of the cycle.

Regards,
Anatoliy