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Please review attached patch and merge.

Leonid.

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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 51051e4142a43e37bc622775e4f816d38d2e269c Author: Leo Yuriev leo@yuriev.ru Date: 2015-01-01 16:44:50 +0300

ITS#8013 fix rare SIGSEGV in test_filter().

Clear PS_FIX_FILTER while alter the filter in syncprov_matchops().

diff --git a/servers/slapd/overlays/syncprov.c b/servers/slapd/overlays/syncprov.c index 2eeda4c..53432b0 100644 --- a/servers/slapd/overlays/syncprov.c +++ b/servers/slapd/overlays/syncprov.c @@ -1308,7 +1308,9 @@ syncprov_matchops( Operation *op, opcookie *opc, int saveit ) /* Skip the AND/GE clause that we stuck on in front. We would lose deletes/mods that happen during the refresh phase otherwise (ITS#6555) */ - op2.ors_filter = ss->s_op->ors_filter->f_and->f_next; + assert(ss->s_op->ors_filter->f_choice == LDAP_FILTER_AND); + op2.ors_filter = op2.ors_filter->f_and->f_next; + ss->s_flags ^= PS_FIX_FILTER; } ldap_pvt_thread_mutex_unlock( &ss->s_mutex ); rc = test_filter( &op2, e, op2.ors_filter ); @@ -2241,6 +2243,7 @@ syncprov_detach_op( Operation *op, syncops *so, slap_overinst *on )

/* Skip the AND/GE clause that we stuck on in front */ if ( so->s_flags & PS_FIX_FILTER ) { + assert(op2->ors_filter->f_choice == LDAP_FILTER_AND); op2->ors_filter = op->ors_filter->f_and->f_next; so->s_flags ^= PS_FIX_FILTER; } else { @@ -2394,7 +2397,6 @@ syncprov_search_response( Operation *op, SlapReply *rs ) ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex ); /* syncprov_ab_cleanup will free this syncop */ return SLAPD_ABANDON; - } else { ldap_pvt_thread_mutex_lock( &ss->ss_so->s_mutex ); /* Turn off the refreshing flag */

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