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(ITS#7098) OpenLDAP crashes when changing OID value in schema definition in cn=config

To: openldap-its@OpenLDAP.org
Subject: (ITS#7098) OpenLDAP crashes when changing OID value in schema definition in cn=config
From: nick@eurobjects.com
Date: Tue, 29 Nov 2011 08:02:34 GMT
Auto-submitted: auto-generated (OpenLDAP-ITS)
Full_Name: Nikolaos Milas
Version: 2.4.26 (LTB RPM)
OS: CentOS 5.7
URL: ftp://ftp.openldap.org/incoming/
Submission from: (NULL) (195.251.204.222)


We use the following schema (among others): 

DN: cn={5}postfix,cn=schema,cn=config
objectClass: olcSchemaConfig
cn: {5}postfix
olcAttributeTypes: {0}( 1.3.6.1.4.1.25260.1.000 NAME 'mailacceptinggeneralid'
DESC 'Defines an address that we accept mail for' EQUALITY caseIgnoreMatch
SUBSTR caseIgnoreSubstringsMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 )
olcAttributeTypes: {1}( 1.3.6.1.4.1.25260.1.001 NAME 'maildrop' DESC 'Defines
the address mail goes to' EQUALITY caseIgnoreMatch SUBSTR
caseIgnoreSubstringsMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 )
olcAttributeTypes: {2}( 1.3.6.1.4.1.25260.1.002 NAME 'mailacceptinguser' DESC
'Defines if this user accepts mail' EQUALITY caseIgnoreMatch SUBSTR
caseIgnoreSubstringsMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 )
olcAttributeTypes: {3}( 1.3.6.1.4.1.25260.1.003 NAME 'aliasInactive' DESC 'A
flag, for marking the alias as not in use' EQUALITY booleanMatch SYNTAX
1.3.6.1.4.1.1466.115.121.1.7 SINGLE-VALUE )
olcObjectClasses: {0}( 1.3.6.1.4.1.25260.1.1.100 NAME 'virtualaccount' DESC
'Holds mail info for a virtual account' STRUCTURAL MUST ( owner $
mailacceptinggeneralid $ maildrop $ cn ) MAY ( description $ aliasInactive ) )
olcObjectClasses: {1}( 1.3.6.1.4.1.25260.1.1.101 NAME 'maillist' DESC 'Virtual
account for holding mailing list info' STRUCTURAL MUST ( mailacceptinggeneralid
$ maildrop $ cn ) MAY ( owner $ description $ aliasInactive ) )
olcObjectClasses: {2}( 1.3.6.1.4.1.25260.1.1.102 NAME 'mailAccount' DESC 'Email
account details' AUXILIARY MUST ( mailacceptinguser $ maildrop $ cn ) MAY (
mailacceptinggeneralid $ aliasInactive ) )
olcObjectClasses: {3}( 1.3.6.1.4.1.25260.1.1.105 NAME 'virtualbox' DESC 'Mailbox
for system use' STRUCTURAL MUST ( owner $ mail $ uid $ cn ) MAY description )

We run: 
# /usr/local/openldap/bin/ldapmodify -h localhost -x -v -W -D
"cn=admin,cn=config" -f /root/work/schemachange1

where /root/work/schemachange1:
dn: cn={5}postfix,cn=schema,cn=config
changetype: modify
delete: olcAttributeTypes
olcAttributeTypes: {0}( 1.3.6.1.4.1.25260.1.000 NAME 'mailacceptinggeneralid'
DESC 'Defines an address that we accept mail for' EQUALITY caseIgnoreMatch
SUBSTR caseIgnoreSubstringsMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 )
-
add: olcAttributeTypes
olcAttributeTypes: {0}( 1.3.6.1.4.1.25260.1.0 NAME 'mailacceptinggeneralid' DESC
'Defines an address that we accept mail for' EQUALITY caseIgnoreMatch SUBSTR
caseIgnoreSubstringsMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 )

This is successful:
[root@ldap work]# /usr/local/openldap/bin/ldapmodify -h localhost -x -v -W -D
"cn=admin,cn=config" -f /root/work/schemachange1
ldap_initialize( ldap://localhost )
Enter LDAP Password: 
delete olcAttributeTypes:
        {0}( 1.3.6.1.4.1.25260.1.000 NAME 'mailacceptinggeneralid' DESC 'Defines
an address that we accept mail for' EQUALITY caseIgnoreMatch SUBSTR
caseIgnoreSubstringsMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 )
add olcAttributeTypes:
        {0}( 1.3.6.1.4.1.25260.1.0 NAME 'mailacceptinggeneralid' DESC 'Defines
an address that we accept mail for' EQUALITY caseIgnoreMatch SUBSTR
caseIgnoreSubstringsMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 )
modifying entry "cn={5}postfix,cn=schema,cn=config"
modify complete

However, then we try to run: 
# /usr/local/openldap/bin/ldapmodify -h localhost -x -v -W -D
"cn=admin,cn=config" -f /root/work/schemachange2

where /root/work/schemachange2: 
dn: cn={5}postfix,cn=schema,cn=config
changetype: modify
delete: olcAttributeTypes
olcAttributeTypes: {1}( 1.3.6.1.4.1.25260.1.001 NAME 'maildrop' DESC 'Defines
the address mail goes to' EQUALITY caseIgnoreMatch SUBSTR
caseIgnoreSubstringsMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 )
-
add: olcAttributeTypes
olcAttributeTypes: {1}( 1.3.6.1.4.1.25260.1.1 NAME 'maildrop' DESC 'Defines the
address mail goes to' EQUALITY caseIgnoreMatch SUBSTR caseIgnoreSubstringsMatch
SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 )

and this causes an OpenLDAP crash:
[root@ldap work]# /usr/local/openldap/bin/ldapmodify -h localhost -x -v -W -D
"cn=admin,cn=config" -f /root/work/schemachange2
ldap_initialize( ldap://localhost )
Enter LDAP Password: 
delete olcAttributeTypes:
        {1}( 1.3.6.1.4.1.25260.1.001 NAME 'maildrop' DESC 'Defines the address
mail goes to' EQUALITY caseIgnoreMatch SUBSTR caseIgnoreSubstringsMatch SYNTAX
1.3.6.1.4.1.1466.115.121.1.15 )
add olcAttributeTypes:
        {1}( 1.3.6.1.4.1.25260.1.1 NAME 'maildrop' DESC 'Defines the address
mail goes to' EQUALITY caseIgnoreMatch SUBSTR caseIgnoreSubstringsMatch SYNTAX
1.3.6.1.4.1.1466.115.121.1.15 )
modifying entry "cn={5}postfix,cn=schema,cn=config"

This hangs, and we interrupt with Ctrl-C.

gdb reports:
-------------------------------------------
(gdb) continue
Continuing.

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x42e54940 (LWP 4089)]
0x000000000047ab0c in at_next (at=0x42e51418) at at.c:366
366             *at = LDAP_STAILQ_NEXT(*at,sat_next);
(gdb) backtrace full
#0  0x000000000047ab0c in at_next (at=0x42e51418) at at.c:366
        __PRETTY_FUNCTION__ = "at_next"
#1  0x000000000042c816 in config_generic (c=0x42e51610) at bconfig.c:1667
        i = 0
        at = 0x0
        prev = 0x0
        i = <value optimized out>
        __PRETTY_FUNCTION__ = "config_generic"
#2  0x00000000004317eb in config_set_vals (Conf=0x81e1e0, c=0x42e51610) at
config.c:334
        rc = <value optimized out>
        arg_type = 0
        ptr = <value optimized out>
#3  0x00000000004355fd in config_parse_add (ct=0x81e1e0, c=0x42e51610,
valx=<value optimized out>) at config.c:678
        rc = <value optimized out>
#4  0x0000000000427fe9 in config_modify_add (ct=0x81e1e0, ca=0x42e51610,
ad=<value optimized out>, i=1) at bconfig.c:5420
        rc = <value optimized out>
#5  0x000000000042a486 in config_modify_internal (op=0x13086920, rs=0x42e53c20)
at bconfig.c:5689
        a = <value optimized out>
        colst = 0x131f7f80
        dels = <value optimized out>
        ml = <value optimized out>
        e = 0x12955548
        rc = <value optimized out>
        oc_at = <value optimized out>
        s = 0x12d56d48
        ct = 0x81e1e0
        i = 2
        nocs = 2
#6  config_back_modify (op=0x13086920, rs=0x42e53c20) at bconfig.c:5802
        cfb = 0x82a640
        ce = <value optimized out>
        last = <value optimized out>
        ml = <value optimized out>
        ca = {argc = 19, argv = 0x131f5120, argv_size = 513, 
          line = 0x132030b3 "( 1.3.6.1.4.1.25260.1.001 NAME 'maildrop' DESC
'Defines the address mail goes to' EQUALITY caseIgnoreMatch SUBSTR
caseIgnoreSubstringsMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 )", tline =
0x13203ce0 "(", fname = 0x587799 "slapd", lineno = 0, 
          log = "olcAttributeTypes: value #1", '\000' <repeats 4096 times>,
reply = {err = 0, 
            msg = "\000lcAttributeTypes: Duplicate attributeType:
\"1.3.6.1.4.1.25260.1.0\"", '\000' <repeats 188 times>}, depth = 0, valx = 1,
values = {
            v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_ber_t = 0,
v_string = 0x0, v_bv = {bv_len = 0, bv_val = 0x0}, v_dn = {vdn_dn = {bv_len = 0,

                bv_val = 0x0}, vdn_ndn = {bv_len = 0, bv_val = 0x0}}, v_ad =
0x0}, rvalue_vals = 0x0, rvalue_nvals = 0x0, op = 0, type = 25, 
          ca_op = 0x13086920, be = 0x82c1a0, bi = 0x0, ca_entry = 0x12955548,
ca_private = 0x129aeaf0, cleanup = 0, table = Cft_Schema}
---Type <return> to continue, or q <return> to quit---
        rdn = {bv_len = 2, bv_val = 0x129dac10
"cn={5}postfix,cn=schema,cn=config"}
        rad = 0x12903de0
        do_pause = 1
#7  0x0000000000452a07 in fe_op_modify (op=0x13086920, rs=0x42e53c20) at
modify.c:303
        repl_user = <value optimized out>
        bd = 0x82c1a0
        textbuf = "@\270\220\022", '\000' <repeats 12 times>,
"@\270\220\022\000\000\000\000\316YE\000\000\000\000\000\260\u01dd\022\000\000\000\000\260[\217\022\000\000\000\000\002\000\000\000\000\000\000\000\262\u01dd\022\000\000\000\000\001\000\000\000\000\000\000\000\261\u01dd\022\000\000\000\000\003\000\000\000\000\000\000\000\260\u01dd\022\000\000\000\000\260\000\000\000\000\000\000\000\060~\037\023",
'\000' <repeats 20 times>, " u\037\023", '\000' <repeats 12 times>"\360,
\271\220\022\000\000\000\000 ", '\000' <repeats 15 times>,
"\023$E\000\000\000\000\000\300\312\005\023\000\000\000\000\000\001\000\000\000\000\000\000\320:\345B\000\000\000\000@<\345B\000\000\000\000
i\b\023\000\000\000\000\001\000\000\000\000\000\000\000Xi\b\023\000\000\000\000Hi\b\023\000\000\000\000\300\312\005\023\000\000\000\000\311"...
#8  0x0000000000453172 in do_modify (op=0x13086920, rs=0x42e53c20) at
modify.c:177
        dn = {bv_len = 33, bv_val = 0x13202669
"cn={5}postfix,cn=schema,cn=config"}
        textbuf = "\327k\b\023", '\000' <repeats 52 times>"\273,
(\207?9\000\000\000\000\000\037\023", '\000' <repeats 16 times>,
"\001\000\000\000\260\200\037\023", '\000' <repeats 12 times>"\211, \331\000@9",
'\000' <repeats 11 times>"\365,
\377\377\377\377\377\377\377oy\037\023\000\000\000\000\b\000\000\000\000\000\000\000H:\265?9\000\000\000\251oW",
'\000' <repeats 13 times>"\361,
\001\000\000\000\000\000\000\333\001\000\000\000\000\000\000@\000\000\000\000\000\000\000H:\265?9\000\000\000\020<\345B",
'\000' <repeats 12 times>,
"!\000\000\000\000\000\000\000\023\000\000\000\000\000\000\000v\277H\000\000\000\000\000\020o\030\023\000\000\000\000\200g\270\022\000\000\000"
        tmp = 0x0
#9  0x000000000043b965 in connection_operation (ctx=0x42e53d70, arg_v=<value
optimized out>) at connection.c:1138
        rc = <value optimized out>
        cancel = <value optimized out>
        op = 0x13086920
        rs = {sr_type = REP_RESULT, sr_tag = 0, sr_msgid = 0, sr_err = 0,
sr_matched = 0x0, sr_text = 0x0, sr_ref = 0x0, sr_ctrls = 0x0, sr_un = {
            sru_search = {r_entry = 0x0, r_attr_flags = 0, r_operational_attrs =
0x0, r_attrs = 0x0, r_nentries = 0, r_v2ref = 0x0}, sru_sasl = {
              r_sasldata = 0x0}, sru_extended = {r_rspoid = 0x0, r_rspdata =
0x0}}, sr_flags = 0}
        tag = 102
        opidx = SLAP_OP_MODIFY
        conn = 0x12b86780
        memctx = 0x1305cac0
        memctx_null = 0x0
        __PRETTY_FUNCTION__ = "connection_operation"
#10 0x000000000043bf3f in connection_read_thread (ctx=0x42e53d70, argv=<value
optimized out>) at connection.c:1274
        s = 31
#11 0x000000000054d68c in ldap_int_thread_pool_wrapper (xpool=0x12907380) at
tpool.c:685
        task = 0x12e1b240
        work_list = <value optimized out>
        ctx = {ltu_id = 1122322752, ltu_key = {{ltk_key = 0x43a8d0, ltk_data =
0x1305c9b0, ltk_free = 0x43a9a0 <conn_counter_destroy>}, {ltk_key = 0x48c440, 
              ltk_data = 0x1305cac0, ltk_free = 0x48c320 <slap_sl_mem_destroy>},
{ltk_key = 0x12b25e30, ltk_data = 0x1305cce0, 
              ltk_free = 0x4e0010 <bdb_reader_free>}, {ltk_key = 0x44e220,
ltk_data = 0x0, ltk_free = 0x44e000 <slap_op_q_destroy>}, {ltk_key = 0x0, 
---Type <return> to continue, or q <return> to quit---
              ltk_data = 0x131f5120, ltk_free = 0}, {ltk_key = 0x0, ltk_data =
0x0, ltk_free = 0} <repeats 27 times>}}
        kctx = <value optimized out>
        keyslot = 976
        hash = <value optimized out>
        __PRETTY_FUNCTION__ = "ldap_int_thread_pool_wrapper"
#12 0x000000394000673d in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#13 0x000000393f8d44bd in clone () from /lib64/libc.so.6
No symbol table info available.
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