From 9fe01bd90b108f41cef85f3ef83d8c1bb88bdc66 Mon Sep 17 00:00:00 2001
From: Anthony Tuininga <anthony.tuininga@oracle.com>
Date: Thu, 12 Jan 2017 11:49:28 -0700
Subject: [PATCH] Clear the object prior to fetching; otherwise, OCI will try
 to do something with it and potentially crash the application!

---
 ObjectVar.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/ObjectVar.c b/ObjectVar.c
index a37031f..7688ca1 100644
--- a/ObjectVar.c
+++ b/ObjectVar.c
@@ -225,10 +225,13 @@ static int ObjectVar_PreFetch(
     ub4 i;
 
     for (i = 0; i < var->allocatedElements; i++) {
-        Py_CLEAR(var->objects[i]);
-        if (var->data[i])
+        if (var->objects[i])
+            Py_CLEAR(var->objects[i]);
+        else if (var->data[i])
             OCIObjectFree(var->environment->handle,
                     var->environment->errorHandle, var->data[i], OCI_DEFAULT);
+        var->data[i] = NULL;
+        var->objectIndicator[i] = NULL;
     }
 
     return 0;