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(ITS#6453) OpenLDAP memory leak on LDAP_TIMEOUT

Full_Name: Alin Vasile
Version: 2.4.19
OS: Solaris 10
URL: ftp://ftp.openldap.org/incoming/
Submission from: (NULL) (


   We have a memory leak LDAP_TIMEOUT is encountered on
ldap_search_ext_invocation and we are unable to determine if it is related to
OpenLdap or not. The following summarizes our code in case the LDAP_TIMEOUT
response is returned :

 LDAPMessage *res ;

 // acquire connection

 // perform search

 if(rc == LDAP_TIMEOUT)
    // return connection

 Is ldap_msgfree(res) enough in this case ?

We tested our program by enabling a low timeout and hence all ldap calls
resulting in timeout. The memory leak is about 9 Megs in several minutes, at a
load of 5 req/ sec. 

 dmalloc sees the following not allocated pointers

6642692 bytes : Line 640 of "io.c" starts at address 0xff2659c4
<ber_get_next+468> and ends at 0xff2659cc <ber_get_next+476>.

2019876 bytes : Line 277 of "memory.c" starts at address 0xff26676c
<ber_memcalloc_x+132> and ends at 0xff266774 <ber_memcalloc_x+140>.