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Please review attached patch and merge-in.

Leonid.

---

The attached files is derived from OpenLDAP Software. All of the 
modifications
to OpenLDAP Software represented in the following patch(es) were 
developed by
Peter-Service LLC, Moscow, Russia. Peter-Service LLC has not assigned 
rights
and/or interest in this work to any party. I, Leonid Yuriev am 
authorized by
Peter-Service LLC, my employer, to release this work under the following 
terms.

Peter-Service LLC hereby places the following modifications to OpenLDAP 
Software
(and only these modifications) into the public domain. Hence, these
modifications may be freely used and/or redistributed for any purpose
with or without attribution and/or other notice.


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commit decf38f5c4ca7bc90edc2def3e14ba146d786f5b
Author: Leo Yuriev <[email protected]>
Date:   2014-12-29 13:40:59 +0300

    ITS#8012: fix syncops list iteration;

diff --git a/servers/slapd/overlays/syncprov.c 
b/servers/slapd/overlays/syncprov.c
index 5ef2eaa..eff9e1c 100644
--- a/servers/slapd/overlays/syncprov.c
+++ b/servers/slapd/overlays/syncprov.c
@@ -1166,10 +1166,10 @@ syncprov_matchops( Operation *op, opcookie *opc, int 
saveit )
        syncprov_info_t         *si = on->on_bi.bi_private;
 
        fbase_cookie fc;
-       syncops *ss, *sprev, *snext;
+       syncops **pss;
        Entry *e = NULL;
        Attribute *a;
-       int rc;
+       int rc, gonext;
        struct berval newdn;
        int freefdn = 0;
        BackendDB *b0 = op->o_bd, db;
@@ -1229,15 +1229,15 @@ syncprov_matchops( Operation *op, opcookie *opc, int 
saveit )
        }
 
        ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
-       for (ss = si->si_ops, sprev = (syncops *)&si->si_ops; ss;
-               sprev = ss, ss=snext)
+       for (pss = &si->si_ops; *pss; pss = gonext ? &(*pss)->s_next : pss)
        {
                Operation op2;
                Opheader oh;
                syncmatches *sm;
                int found = 0;
+               syncops *ss = *pss;
 
-               snext = ss->s_next;
+               gonext = 1;
                if ( ss->s_op->o_abandon )
                        continue;
 
@@ -1266,9 +1266,9 @@ syncprov_matchops( Operation *op, opcookie *opc, int 
saveit )
                        SlapReply rs = {REP_RESULT};
                        send_ldap_error( ss->s_op, &rs, 
LDAP_SYNC_REFRESH_REQUIRED,
                                "search base has changed" );
-                       sprev->s_next = snext;
+                       *pss = ss->s_next;
+                       gonext = 0;
                        syncprov_drop_psearch( ss, 1 );
-                       ss = sprev;
                        continue;
                }
 
@@ -1342,6 +1342,8 @@ syncprov_matchops( Operation *op, opcookie *opc, int 
saveit )
                        /* Decrement s_inuse, was incremented when called
                         * with saveit == TRUE
                         */
+                       *pss = ss->s_next;
+                       gonext = 0;
                        syncprov_free_syncop( ss );
                }
        }

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