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Re: (ITS#8759) mixed overlay nops & memberof cause segfault

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.

-- 
   -- Howard Chu
   CTO, Symas Corp.           http://www.symas.com
   Director, Highland Sun     http://highlandsun.com/hyc/
   Chief Architect, OpenLDAP  http://www.openldap.org/project/