Bug 487590

+++ This bug was initially created as a clone of Bug #487574 +++

Description of problem:

I can force a server crash using ldapmodify.

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

fedora-ds-base-1.1.3-2.fc9.i386

How reproducible:

Every time.

Steps to Reproduce:
% ldapmodify -x -D "cn=directory manager" -W
dn: cn=foo,cn=groups,cn=accounts,dc=example.com,dc=com
changetype: modify
delete: gidnumber

(gdb) where
#0  dna_pre_op (pb=0x930fe60, modtype=4) at dna.c:1295
#1  0x0017c0a1 in ?? () from /usr/lib/dirsrv/libslapd.so.0
#2  0x0017c2ae in plugin_call_plugins () from /usr/lib/dirsrv/libslapd.so.0
#3  0x0016fb7c in ?? () from /usr/lib/dirsrv/libslapd.so.0
#4  0x001711bc in do_modify () from /usr/lib/dirsrv/libslapd.so.0
#5  0x08058157 in ber_sockbuf_free ()
#6  0x00927f81 in ?? () from /lib/libnspr4.so
#7  0x00bd532f in start_thread () from /lib/libpthread.so.0
#8  0x00af220e in clone () from /lib/libc.so.6
(gdb) print bv
$1 = (struct berval *) 0x0

--- Additional comment from rcritten on 2009-02-26 14:13:08 EDT ---

Backtrace using the FDS DNA plugin. This build is from the source tip from 2/11/09.

#0  dna_pre_op (pb=0x9c48460, modtype=4) at ldap/servers/plugins/dna/dna.c:2636
#1  0x0017c0a1 in plugin_call_func (list=0x9a14070, operation=405, 
    pb=0x9c48460, call_one=0) at ldap/servers/slapd/plugin.c:1369
#2  0x0017c2ae in plugin_call_plugins (pb=0x9c48460, whichfunction=405)
    at ldap/servers/slapd/plugin.c:1331
#3  0x0016fb7c in op_shared_modify (pb=0x9c48460, pw_change=0, old_pw=0x0)
    at ldap/servers/slapd/modify.c:777
#4  0x001711bc in do_modify (pb=0x9c48460) at ldap/servers/slapd/modify.c:341
#5  0x08058157 in connection_threadmain ()
    at ldap/servers/slapd/connection.c:502
#6  0x00927f81 in ?? () from /lib/libnspr4.so
#7  0x00bd532f in start_thread () from /lib/libpthread.so.0
#8  0x00af220e in clone () from /lib/libc.so.6
(gdb) print bv
$1 = (struct berval *) 0x0

--- Additional comment from nkinder on 2009-02-26 14:58:16 EDT ---

Created an attachment (id=333377)
DS DNA patch

--- Additional comment from rcritten on 2009-02-26 15:18:49 EDT ---

Tested 3 scenarios, 2 passed:

1. PASS
dn: cn=foo,cn=groups,cn=accounts,dc=example,dc=com
changetype: modify
delete: gidnumber

2. PASS
dn: cn=foo,cn=groups,cn=accounts,dc=example,dc=com
changetype: modify
replace: gidnumber

3. FAIL
dn: cn=foo,cn=groups,cn=accounts,dc=example,dc=com
changetype: modify
delete: gidnumber
gidnumber: 1103

The entry looks like this:

dn: cn=foo,cn=groups,cn=accounts,dc=example,dc=com
objectClass: top
objectClass: groupofnames
objectClass: posixGroup
objectClass: inetUser
description: foo
cn: foo
gidNumber: 1103

I'm attached to the slapd process but not getting a backtrace when it quits, just:

[Thread 0xb4c21b90 (LWP 31146) exited]
[ a slew more ]
[Thread 0xb6023b90 (LWP 31144) exited]

Program exited with code 0177.

--- Additional comment from nkinder on 2009-02-26 16:09:36 EDT ---

Created an attachment (id=333386)
Revised DS DNA patch

--- Additional comment from rcritten on 2009-02-26 16:20:45 EDT ---

All my tests pass now