From de7aa3106adcdc14ed5e09c653133115a83e512a Mon Sep 17 00:00:00 2001
From: Rozlette <Uberpanzermensch@gmail.com>
Date: Sat, 20 Jan 2018 14:56:15 -0600
Subject: memory: Return false for large VAddr in IsValidVirtualAddress

---
 src/core/memory.cpp | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src')

diff --git a/src/core/memory.cpp b/src/core/memory.cpp
index 74a598852..a3d2d4951 100644
--- a/src/core/memory.cpp
+++ b/src/core/memory.cpp
@@ -219,6 +219,9 @@ void Write(const VAddr vaddr, const T data) {
 bool IsValidVirtualAddress(const Kernel::Process& process, const VAddr vaddr) {
     auto& page_table = process.vm_manager.page_table;
 
+    if ((vaddr >> PAGE_BITS) >= PAGE_TABLE_NUM_ENTRIES)
+        return false;
+
     const u8* page_pointer = page_table.pointers[vaddr >> PAGE_BITS];
     if (page_pointer)
         return true;
-- 
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