Segfault in linelog

[Arnab Roy]

   Hi ,

   I am getting a segmentation fault when using EAP-TLS and the following
   linelog statement

   Access-Request
   ="%{User-Name};%{reply:Packet-Type};%S;%{%{%{Module-Failure-Message[*]}
   :-%{reply:Reply-Message[*]}:-%{MS-CHAP-Error[*]}}:-[AUTHENTICATED]};%{C
   alling-Station-Id};%{reply:[*]};%{proxy-request:Packet-Dst-IP-Address}"

   On running with the -XX flags it seems to seg out at as follows

   Thu Apr 27 17:50:57 2017 : Debug:
   %{User-Name};%{reply:Packet-Type};%S;%{%{%{Module-Failure-Message[*]}:-
   %{reply:Reply-Message[*]}:-%{MS-CHAP-Error[*]}}:-[AUTHENTICATED]};%{Cal
   ling-Station-Id};%{reply:[*]};%{proxy-request:Packet-Dst-IP-Address}
   Thu Apr 27 17:50:57 2017 : Debug: Parsed xlat tree:
   Thu Apr 27 17:50:57 2017 : Debug: attribute --> User-Name
   Thu Apr 27 17:50:57 2017 : Debug: literal --> ;
   Thu Apr 27 17:50:57 2017 : Debug: attribute --> Packet-Type
   Thu Apr 27 17:50:57 2017 : Debug: literal --> ;
   Thu Apr 27 17:50:57 2017 : Debug: percent --> S
   Thu Apr 27 17:50:57 2017 : Debug: literal --> ;
   Thu Apr 27 17:50:57 2017 : Debug: XLAT-IF {
   Thu Apr 27 17:50:57 2017 : Debug:          XLAT-IF {
   Thu Apr 27 17:50:57 2017 : Debug:                           attribute
   --> Module-Failure-Message
   Thu Apr 27 17:50:57 2017 : Debug:                           {
   Thu Apr 27 17:50:57 2017 : Debug:
        ref  2
   Thu Apr 27 17:50:57 2017 : Debug:
        list 1
   Thu Apr 27 17:50:57 2017 : Debug:
        [*]
   Thu Apr 27 17:50:57 2017 : Debug:                           }
   Thu Apr 27 17:50:57 2017 : Debug:          }
   Thu Apr 27 17:50:57 2017 : Debug:          XLAT-ELSE {
   Thu Apr 27 17:50:57 2017 : Debug:                           attribute
   --> Reply-Message
   Thu Apr 27 17:50:57 2017 : Debug:                           {
   Thu Apr 27 17:50:57 2017 : Debug:
        ref  2
   Thu Apr 27 17:50:57 2017 : Debug:
        list 2
   Thu Apr 27 17:50:57 2017 : Debug:
        [*]
   Thu Apr 27 17:50:57 2017 : Debug:                           }
   Thu Apr 27 17:50:57 2017 : Debug:                           literal -->
   :-
   Thu Apr 27 17:50:57 2017 : Debug:                           attribute
   --> MS-CHAP-Error
   Thu Apr 27 17:50:57 2017 : Debug:                           {
   Thu Apr 27 17:50:57 2017 : Debug:
        ref  2
   Thu Apr 27 17:50:57 2017 : Debug:
        list 1
   Thu Apr 27 17:50:57 2017 : Debug:
        [*]
   Thu Apr 27 17:50:57 2017 : Debug:                           }
   Thu Apr 27 17:50:57 2017 : Debug:          }
   Thu Apr 27 17:50:57 2017 : Debug: }
   Thu Apr 27 17:50:57 2017 : Debug: XLAT-ELSE {
   Thu Apr 27 17:50:57 2017 : Debug:          literal --> [AUTHENTICATED]
   Thu Apr 27 17:50:57 2017 : Debug: }
   Thu Apr 27 17:50:57 2017 : Debug: literal --> ;
   Thu Apr 27 17:50:57 2017 : Debug: attribute --> Calling-Station-Id
   Thu Apr 27 17:50:57 2017 : Debug: literal --> ;

   So looks like Calling-Station-Id is the culprit. Please note this only
   occurs when the EAP method is TLS and not PEAP /PAP etc.

   Disabling the above stops the crash.

   Any suggestions happy provide further logs if required.