diff --git a/sql/ha_ndbcluster_cond.h b/sql/ha_ndbcluster_cond.h
index d5b3b913f22..4d1d2ef9f92 100644
--- a/sql/ha_ndbcluster_cond.h
+++ b/sql/ha_ndbcluster_cond.h
@@ -264,8 +264,20 @@ class Ndb_cond : public Sql_alloc
   ~Ndb_cond() 
   { 
     if (ndb_item) delete ndb_item; 
-    ndb_item= NULL; 
-    if (next) delete next;
+    ndb_item= NULL;
+    /*
+      First item in the linked list deletes all in a loop
+      Note - doing it recursively causes stack issues for
+      big IN clauses
+    */
+    Ndb_cond *n= next;
+    while (n)
+    {
+      Ndb_cond *tmp= n;
+      n= n->next;
+      tmp->next= NULL;
+      delete tmp;
+    }
     next= prev= NULL; 
   };
   Ndb_item *ndb_item;
diff --git a/storage/ndb/src/kernel/vm/RWPool.cpp b/storage/ndb/src/kernel/vm/RWPool.cpp
index 192a8f87402..056b2149e2a 100644
--- a/storage/ndb/src/kernel/vm/RWPool.cpp
+++ b/storage/ndb/src/kernel/vm/RWPool.cpp
@@ -140,7 +140,7 @@ RWPool::release(Ptr<void> ptr)
     Uint32 ff = page->m_first_free;
 
     * (record_ptr + m_record_info.m_offset_next_pool) = ff;
-    page->m_first_free = ptr.i;
+    page->m_first_free = ptr.i & POOL_RECORD_MASK;
     page->m_ref_count = ref_cnt - 1;
     
     if (ff == REC_NIL)