From a812985a646039feaff1eec867ad8350ef13cc18 Mon Sep 17 00:00:00 2001
From: Sajid Anwar <sajidanwar94@gmail.com>
Date: Fri, 15 Jun 2018 12:29:24 -0700
Subject: [PATCH] Fix bounds check on reading the IPC buffer

---
 Ryujinx.HLE/HOS/Ipc/IpcMessage.cs | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/Ryujinx.HLE/HOS/Ipc/IpcMessage.cs b/Ryujinx.HLE/HOS/Ipc/IpcMessage.cs
index 796108e63b..02900444aa 100644
--- a/Ryujinx.HLE/HOS/Ipc/IpcMessage.cs
+++ b/Ryujinx.HLE/HOS/Ipc/IpcMessage.cs
@@ -176,14 +176,14 @@ namespace Ryujinx.HLE.HOS.Ipc
 
         public (long Position, long Size) GetBufferType0x21(int Index = 0)
         {
-            if (PtrBuff.Count           != 0 &&
+            if (PtrBuff.Count > Index &&
                 PtrBuff[Index].Position != 0 &&
                 PtrBuff[Index].Size     != 0)
             {
                 return (PtrBuff[Index].Position, PtrBuff[Index].Size);
             }
 
-            if (SendBuff.Count           != 0 &&
+            if (SendBuff.Count > Index &&
                 SendBuff[Index].Position != 0 &&
                 SendBuff[Index].Size     != 0)
             {
@@ -195,14 +195,14 @@ namespace Ryujinx.HLE.HOS.Ipc
 
         public (long Position, long Size) GetBufferType0x22(int Index = 0)
         {
-            if (RecvListBuff.Count           != 0 &&
+            if (RecvListBuff.Count > Index &&
                 RecvListBuff[Index].Position != 0 &&
                 RecvListBuff[Index].Size     != 0)
             {
                 return (RecvListBuff[Index].Position, RecvListBuff[Index].Size);
             }
 
-            if (ReceiveBuff.Count           != 0 &&
+            if (ReceiveBuff.Count > Index &&
                 ReceiveBuff[Index].Position != 0 &&
                 ReceiveBuff[Index].Size     != 0)
             {