Description of problem:

Program terminated with signal 11, Segmentation fault.
#0  test_filter (op=op@entry=0x2ba29d35cf30, e=0x2ba30431f558, f=0x0) at filterentry.c:69
69        if ( f->f_choice & SLAPD_FILTER_UNDEFINED ) {
...
(gdb) l
64        Filter    *f )
65    {
66        int    rc;
67        Debug( LDAP_DEBUG_FILTER, "=> test_filter\n", 0, 0, 0 );
68    
69        if ( f->f_choice & SLAPD_FILTER_UNDEFINED ) {
70            Debug( LDAP_DEBUG_FILTER, "    UNDEFINED\n", 0, 0, 0 );
71            rc = SLAPD_COMPARE_UNDEFINED;
72            goto out;
73        }
(gdb) bt
#0  test_filter (op=op@entry=0x2ba29d35cf30, e=0x2ba30431f558, f=0x0) at filterentry.c:69
#1  0x00002ba034e86598 in syncprov_matchops (op=op@entry=0x2ba29d35e510, opc=opc@entry=0x2ba2a8000998, 
    saveit=saveit@entry=0) at syncprov.c:1334
#2  0x00002ba034e880cb in syncprov_op_response (op=0x2ba29d35e510, rs=<optimized out>) at syncprov.c:1972
#3  0x000055651ffff423 in slap_response_play (op=op@entry=0x2ba29d35e510, rs=rs@entry=0x2ba29d35dd70)
    at result.c:508
#4  0x000055651ffff9e0 in send_ldap_response (op=op@entry=0x2ba29d35e510, rs=rs@entry=0x2ba29d35dd70)
    at result.c:583
#5  0x0000556520000572 in slap_send_ldap_result (op=0x2ba29d35e510, rs=0x2ba29d35dd70) at result.c:861
...


this signature seems to match an old bug report at
https://bugs.openldap.org/show_bug.cgi?id=8013

which was 
fixed in master
fixed in RE25
fixed in RE24

and this fix appears to be in openldap-servers-2.4.44-25.el7_9 :

./openldap-2.4.44/CHANGES:      Fixed slapo-syncprov synprov_matchops usage of test_filter (ITS#8013)

so there may be something else or the fix was not complete.

I do not know how to reproduce this event.


Version-Release number of selected component (if applicable):

RHEL-7.9
redhat-release-server-7.9-6.el7_9.x86_64
openldap-servers-2.4.44-25.el7_9.x86_64


How reproducible:
N/A
in the report: slapd is crashing multiple times per week


Steps to Reproduce:
1. N/A
2.
3.

Actual results:


Expected results:


Additional info: