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core dumped on create new entries with UTF/base64 dn (ITS#2632)

Full_Name: Alex Deiter
Version: 2.1.22
OS: FreeBSD 5.1 sparc64
URL: ftp://ftp.openldap.org/incoming/
Submission from: (NULL) (

I'm running openldap 2.1.22 on FreeBSD 5.1 sparc64.
Slapd core-dumped each time, i try to add new entry with dn, contans UTF, or
base64 encoded:

dn:: b3U90YDRg9GB0YHQutC40Lkg0YLQtdGB0YIsZGM9a29taSxkYz1tdHMsZGM9cnU=
objectClass: top
objectclass: organizationalUnit
ou:: 0YDRg9GB0YHQutC40Lkg0YLQtdGB0YI=

# ldapadd -x -W -D 'cn=ldapmanager,dc=komi,dc=mts,dc=ru' -f test.ldif
Enter LDAP Password:
adding new entry "ou=§ñ©¤§ñ©´§ñ©¦§ñ©¦§á¨l§á¨j§á¨k
ldapadd: update failed: ou=§ñ©¤§ñ©´§ñ©¦§ñ©¦§á¨l§á¨j§á¨k
ldap_add: Can't contact LDAP server (81)

kernel: pid 2464 (slapd), uid 0: exited on signal 4 (core dumped)

#0  0x00000000001762dc in uckdecomp (code=1088, num=0x7fdffae9420,
    decomp=0x7fdffae9418) at ucdata.c:871
871             if (code > _uckdcmp_nodes[m])
(gdb) bt
#0  0x00000000001762dc in uckdecomp (code=1088, num=0x7fdffae9420,
    decomp=0x7fdffae9418) at ucdata.c:871
#1  0x0000000000176468 in uccanoncompatdecomp (in=0x3a0900, inlen=7,
    out=0x7fdffae95e0, outlen=0x7fdffae95dc, mode=1) at ucdata.c:915
#2  0x00000000001767bc in uccompatdecomp (in=0x0, inlen=7,
    outlen=0x7fdffae95dc) at ucdata.c:980
#3  0x0000000000177760 in UTF8bvnormalize (bv=0x7, newbv=0x7fdffae96b8,
    flags=2728072) at ucstr.c:215
#4  0x000000000011ead8 in LDAPDN_rewrite (dn=0x387ac0, flags=0) at dn.c:319
#5  0x000000000011f4a8 in dnPrettyNormal (syntax=0x15, val=0x7fdffae99c8,
    pretty=0x38f188, normal=0x38f198) at dn.c:612
#6  0x0000000000111690 in do_add (conn=0x3a7b80, op=0x3a0700) at add.c:88
#7  0x000000000010c5ac in connection_operation (ctx=0x3878c0,
    at connection.c:927
#8  0x00000000403d5fb0 in ldap_int_thread_pool_wrapper (xpool=0x2ead00)
    at tpool.c:426
#9  0x00000000410eea94 in _thread_start () from /usr/lib/libc_r.so.5