pam_authenticate() get crashed with segmentation fault for Active Directory user when 'userWorkstations' property is set.

code snippet:
------------------------------------------
struct pam_response *poPamResponse = NULL;
int PAMConversationFunction
(
int num_msg,
const struct pam_message **msg,
struct pam_response **resp,
void *appdata_ptr
)
{
*resp = pPam_response;
return PAM_SUCCESS;
}
void fun()
{
...
const struct pam_conv pam_conversation = { PAMConversationFunction, NULL };
pam_handle_t *pPam_auth_handle = NULL;
returnval = pam_start("passwd", pstr_user_name, &pam_conversation, &pPam_auth_handle );
pPam_response = (struct pam_response *)malloc(sizeof(struct pam_response));
pPam_response[0].resp = strdup(pstr_password);
pPam_response[0].resp_retcode = 0;
retval = pam_authenticate(pPam_auth_handle , PAM_DISALLOW_NULL_AUTHTOK);
if (retval == PAM_SUCCESS)
{
retval = pam_acct_mgmt(pPam_auth_handle , PAM_DISALLOW_NULL_AUTHTOK)
}
...
}
------------------------------------------

In above code snippet the function 'pam_authenticate()' getting crashed below is the back-trace for it:
[root@centOS7_x86_64 abrt]# cat ccpp-2018-12-19-20:48:43-3976/core_backtrace
{ "signal": 11
, "executable": "/usr/app_name/bin/pamAuthTest"
, "stacktrace":
[ { "crash_thread": true
, "frames":
[ { "address": 140408375291910
, "build_id": "b04a54c443d36058702ab4060c63f4ab3273eae9"
, "build_id_offset": 1253382
, "function_name": "__strcmp_sse42"
, "file_name": "/lib64/libc.so.6"
}
, { "address": 140408390019396
, "build_id": "b8c28d3a423ca606820b991ad82c3b6d86de6b09"
, "build_id_offset": 10564
, "function_name": "_pam_locate_data"
, "file_name": "/lib64/libpam.so.0"
}
, { "address": 140408390019502
, "build_id": "b8c28d3a423ca606820b991ad82c3b6d86de6b09"
, "build_id_offset": 10670
, "function_name": "pam_set_data"
, "file_name": "/lib64/libpam.so.0"
}
, { "address": 140408177247691
, "build_id": "a1a6df0413dd7702b14fb1acef236bca7c24703d"
, "build_id_offset": 21963
, "function_name": "pam_sm_authenticate"
, "file_name": "/usr/lib64/security/pam_winbind.so"
}
, { "address": 140408390020970
, "build_id": "b8c28d3a423ca606820b991ad82c3b6d86de6b09"
, "build_id_offset": 12138
, "function_name": "_pam_dispatch"
, "file_name": "/lib64/libpam.so.0"
}
, { "address": 140408390019120
, "build_id": "b8c28d3a423ca606820b991ad82c3b6d86de6b09"
, "build_id_offset": 10288
, "function_name": "pam_authenticate"
, "file_name": "/lib64/libpam.so.0"
}
, { "address": 4229032
, "build_id_offset": 34728
, "function_name": "main"
, "file_name": "/usr/app_name/bin/pamAuthTest"
} ]
} ]
}