(ITS#7912) pcache database object segfaults when initialized with olcDbIndex

[nvoutsin@noc.uoa.gr]

Full_Name: Nikos Voutsinas
Version: 2.4.39
OS: Debian
URL: hthttp://users.uoa.gr/~nvoutsin/OpenLdap_ITS/add-ldap-pcache-config.working.ldif  http://users.uoa.gr/~nvoutsin/OpenLdap_ITS/add-ldap-pcache-config.not_working.ldif 
Submission from: (NULL) (141.237.8.119)


When creating an ldap/pcache stack, slapd segfaults if the db for the pcache is
initialized with an entry that includes the olcDbIndex. On the contrary if the
pcache db entry is initialized with out the olcDbIndex but is later modified
with the exact same olcDbIndex values, operation succeeds.

>From the attached ldifs the add-ldap-pcache-config.working.ldif succeeds and the
add-ldap-pcache-config.not_working.ldif cause slapd to segfault.