From 65af709aa9ee4abb64c7dfb8a848a9229ff5989f Mon Sep 17 00:00:00 2001
From: d0k3 <tore.anon@gmail.com>
Date: Fri, 9 Jun 2017 00:21:31 +0200
Subject: [PATCH] Improved ticket validation

---
 source/game/ticket.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/source/game/ticket.c b/source/game/ticket.c
index b18ed4f..ffd425d 100644
--- a/source/game/ticket.c
+++ b/source/game/ticket.c
@@ -8,7 +8,8 @@ u32 ValidateTicket(Ticket* ticket) {
     const u8 magic[] = { TICKET_SIG_TYPE };
     if ((memcmp(ticket->sig_type, magic, sizeof(magic)) != 0) ||
         ((strncmp((char*) ticket->issuer, TICKET_ISSUER, 0x40) != 0) &&
-        (strncmp((char*) ticket->issuer, TICKET_ISSUER_DEV, 0x40) != 0)))
+        (strncmp((char*) ticket->issuer, TICKET_ISSUER_DEV, 0x40) != 0)) ||
+        (ticket->commonkey_idx >= 6))
         return 1;
     return 0;
 }