From 9f8fdea5253e7e19a858fca05aa812796f28a63e Mon Sep 17 00:00:00 2001
From: arrai <array.of.intellect@gmail.com>
Date: Thu, 19 Mar 2009 21:43:33 +0100
Subject: [PATCH] Fixed possible crash caused by invalid formed
 CMSG_AUTH_SESSION

---
 src/game/WorldSession.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/game/WorldSession.cpp b/src/game/WorldSession.cpp
index 381dca343..2c8532a82 100644
--- a/src/game/WorldSession.cpp
+++ b/src/game/WorldSession.cpp
@@ -673,6 +673,8 @@ void WorldSession::ReadMovementInfo(WorldPacket &data, MovementInfo *mi)
 
 void WorldSession::ReadAddonsInfo(WorldPacket &data)
 {
+    if (data.rpos() + 4 > data.size())
+        return;
     uint32 size;
     data >> size;