zhixu.liu@gmail.com wrote:

Full_Name: Z. Liu Version: 2.4.44 OS: Gentoo URL: ftp://ftp.openldap.org/incoming/ Submission from: (NULL) (221.218.169.84)

if we enable overlay nops & memberof together, then doing a member MODDN operation, slapd will segfault and exit immediately.

Example operation:

dn: uid=test,ou=People,dc=example,dc=dc=com changetype: moddn newrdn: uid=chenln deleteoldrdn: 1 newsuperior: ou=Leave,dc=example,dc=com

The reason is: in servers/slapd/overlays/memberof.c, function memberof_value_modify define mod/values/nvalues in the stack, which will be passed to other overlays, nops will try to free them if no attribute is changed.

Note that code in contrib is unsupported and is not actually part of OpenLDAP Software. You can either contact the nops author and ask them for a fix, or you're welcome to submit a fix yourself. Nobody in the OpenLDAP Project is going to investigate this issue.