commit ec2fe743f5795eb7aaf43687e6b257ac071cef22

Author: Ryan Tandy <ryan@nardis.ca>

Date:   Wed May 17 20:07:39 2017 -0700

    ITS#8655 fix double free on paged search with pagesize 0

    Fixes a double free when a search includes the Paged Results control

    with a page size of 0 and the search base matches the filter.

diff --git a/servers/slapd/back-mdb/search.c b/servers/slapd/back-mdb/search.c

index 009939d..d0db918 100644

--- a/servers/slapd/back-mdb/search.c

+++ b/servers/slapd/back-mdb/search.c

@@ -1066,7 +1066,8 @@ notfound:

 			/* check size limit */

 			if ( get_pagedresults(op) > SLAP_CONTROL_IGNORED ) {

 				if ( rs->sr_nentries >= ((PagedResultsState *)op->o_pagedresults_state)->ps_size ) {

-					mdb_entry_return( op, e );

+					if (e != base)

+						mdb_entry_return( op, e );

 					e = NULL;

 					send_paged_response( op, rs, &lastid, tentries );

 					goto done;