slapd crash

[Glenn Case <ldap@glennc.net>]

I have found a crash in slapd
I think I have the reason for the crash

The Environment

Solaris 8
    openssl 2.1.2 or openssl 2.0.23
    berkly db 4.0.14
    cyrus-sasl-2.1.5 or cyrus-sasl-1.5.27
    mit krb5-1.2.5

The issue appears to be that
    A) mit krb5 1.2.5 on Solaris 8 is not thread safe

The reason for the crash appears to be the difference between the errno
definition in solaris headers
    in multi threaded applications and non multithreaded applications.

If I define _REENTRANT when I build the kerberos code the crash does not
happen, but I do not believe that is the full fix as when I checked with
the folks working on mit kerberos they stated that the kerberos code is
not thread safe.

The crash occurs when I have a userPassword attribute set to
{KERBEROS}name@realm
and try to do a simple authentication against that.
(I know this is not recomended but I was just starting to do some
testing to see what would work and what would not. )

So I was wondering
    A) is the path to the kerberos code treated as if it was thread safe
within openldap or not
           or is this a SASL Question
    B) and  if someone has this environment working ? on solaris or on
Linux

If I turn off --with-kpasswd during the configure of openldap then
I dont see the crash.
But if I remember right that means the {KERBEROS} structure will not
work.

If this is the wrong mailing list please point me to the right one.


Thanks
    Glenn Case


my stack trace at the crash is

t@6 (l@1) signal SEGV (no mapping at the fault address) in
profile_node_iterator at 0xff1d1d1c
0xff1d1d1c: profile_node_iterator+0x00dc:       ld      [%l4 + 0x14],
%l4
(/opt/SUNWspro/bin/../WS6U2/bin/sparcv9/dbx) where
current thread: t@6
=>[1] profile_node_iterator(0xfcc0186c, 0x0, 0x0, 0xfcc01868, 0x1543b8,
0x0), at 0xff1d1d1c
  [2] profile_get_value(0x0, 0xfcc018d8, 0xfcc018d4, 0x201a50, 0x5f,
0x6d), at 0xff1d34e8
  [3] profile_get_integer(0x151d10, 0xff1d8940, 0xff1d894c, 0x0, 0x12c,
0xfcc0194c), at 0xff1d360c
  [4] init_common(0xfcc01a64, 0x0, 0x2da54, 0x15420a, 0x4d, 0x11), at
0xff1bba94
  [5] 0x89924(0xc24c4, 0x151d20, 0xfcc01c20, 0x3, 0x101b10, 0x1b), at
0x89923
  [6] lutil_passwd(0x15fed8, 0xfcc01c20, 0x0, 0x103bc8, 0x0, 0x0), at
0x89160
  [7] slap_passwd_check(0x1, 0x15ffb0, 0xfcc01c20, 0x2, 0x101f,
0xfcf4c), at 0x48300
  [8] ldbm_back_bind(0x149718, 0x1deba0, 0x201c88, 0x103800, 0xfcc01c30,
0x80), at 0x77864
  [9] do_bind(0x1deba0, 0x201c88, 0x77300, 0xfac00, 0xfac00, 0xfac00),
at 0x3cce4
  [10] 0x24cd0(0x151c80, 0x105e48, 0x0, 0x1, 0x0, 0x0), at 0x24ccf
  [11] 0x8e850(0x105e40, 0x0, 0x15fe18, 0x0, 0x1, 0xfe401000), at
0x8e84f