From 4aaca8cbf3288e5334cfafccea9cbfe0d5875e7f Mon Sep 17 00:00:00 2001
From: gibbed <rick@gibbed.us>
Date: Wed, 22 Jun 2016 15:53:07 -0500
Subject: [PATCH] Fixed copying junk data into initialized XEX memory when XEX
 is unencrypted.

---
 src/xenia/kernel/util/xex2.cc | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/src/xenia/kernel/util/xex2.cc b/src/xenia/kernel/util/xex2.cc
index 823ec22f3..e2de74cf0 100644
--- a/src/xenia/kernel/util/xex2.cc
+++ b/src/xenia/kernel/util/xex2.cc
@@ -630,12 +630,11 @@ int xe_xex2_read_image_basic_compressed(const xe_xex2_header_t* header,
 
     switch (header->file_format_info.encryption_type) {
       case XEX_ENCRYPTION_NONE:
-        if (exe_length - (p - source_buffer) >
-            uncompressed_size - (d - buffer)) {
+        if (data_size > uncompressed_size - (d - buffer)) {
           // Overflow.
           return 1;
         }
-        memcpy(d, p, exe_length - (p - source_buffer));
+        memcpy(d, p, data_size);
         break;
       case XEX_ENCRYPTION_NORMAL: {
         const uint8_t* ct = p;