Author: abartlet
Date: 2007-07-21 10:14:46 +0000 (Sat, 21 Jul 2007)
New Revision: 23982

WebSVN: 
http://websvn.samba.org/cgi-bin/viewcvs.cgi?view=rev&root=samba&rev=23982

Log:
Fix use-after-realloc() found by valgrind and [EMAIL PROTECTED]

Should fix bug #4804.

Andrew Bartlett

Modified:
   branches/SAMBA_4_0/source/dsdb/samdb/ldb_modules/kludge_acl.c


Changeset:
Modified: branches/SAMBA_4_0/source/dsdb/samdb/ldb_modules/kludge_acl.c
===================================================================
--- branches/SAMBA_4_0/source/dsdb/samdb/ldb_modules/kludge_acl.c       
2007-07-20 16:39:42 UTC (rev 23981)
+++ branches/SAMBA_4_0/source/dsdb/samdb/ldb_modules/kludge_acl.c       
2007-07-21 10:14:46 UTC (rev 23982)
@@ -115,7 +115,7 @@
 static int kludge_acl_allowedAttributes(struct ldb_context *ldb, struct 
ldb_message *msg,
                                                         const char *attrName) 
 {
-       struct ldb_message_element *oc_el = ldb_msg_find_element(msg, 
"objectClass");
+       struct ldb_message_element *oc_el;
        struct ldb_message_element *allowedAttributes;
        const struct dsdb_schema *schema = dsdb_get_schema(ldb);
        const struct dsdb_class *class;
@@ -125,6 +125,10 @@
                return ret;
        }
        
+       /* To ensure that oc_el is valid, we must look for it after 
+          we alter the element array in ldb_msg_add_empty() */
+       oc_el = ldb_msg_find_element(msg, "objectClass");
+
        for (i=0; i < oc_el->num_values; i++) {
                class = dsdb_class_by_lDAPDisplayName(schema, (const char 
*)oc_el->values[i].data);
                if (!class) {

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