From e2cd5b4e2dd6aad77761a7758bf40557d366bb37 Mon Sep 17 00:00:00 2001
From: Thog <me@thog.eu>
Date: Tue, 26 Nov 2019 18:12:01 +0100
Subject: [PATCH] Fix critical overflow in random computation

---
 Ryujinx.HLE/HOS/Services/Ro/IRoInterface.cs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Ryujinx.HLE/HOS/Services/Ro/IRoInterface.cs b/Ryujinx.HLE/HOS/Services/Ro/IRoInterface.cs
index 21c38e1bc1..d2eb38732e 100644
--- a/Ryujinx.HLE/HOS/Services/Ro/IRoInterface.cs
+++ b/Ryujinx.HLE/HOS/Services/Ro/IRoInterface.cs
@@ -272,9 +272,9 @@ namespace Ryujinx.HLE.HOS.Services.Ro
             {
                 while (true)
                 {
-                    int randomOffset = _random.Next(0, (int)addressSpacePageLimit) << 12;
+                    ulong randomOffset = (ulong)(uint)_random.Next(0, (int)addressSpacePageLimit) << 12;
 
-                    targetAddress = memMgr.GetAddrSpaceBaseAddr() + (ulong)randomOffset;
+                    targetAddress = memMgr.GetAddrSpaceBaseAddr() + randomOffset;
 
                     if (memMgr.InsideAddrSpace(targetAddress, size) && !memMgr.InsideHeapRegion(targetAddress, size) && !memMgr.InsideAliasRegion(targetAddress, size))
                     {