From a00e120bf7be1a1407db89d6e184ad35fcf53adf Mon Sep 17 00:00:00 2001
From: Michael Scire <SciresM@gmail.com>
Date: Thu, 15 Nov 2018 06:23:44 -0800
Subject: [PATCH] fs.mitm: Make PRODINFO always read-only.

---
 stratosphere/fs_mitm/source/fsmitm_service.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/stratosphere/fs_mitm/source/fsmitm_service.cpp b/stratosphere/fs_mitm/source/fsmitm_service.cpp
index 6fb27f846..b8384d26c 100644
--- a/stratosphere/fs_mitm/source/fsmitm_service.cpp
+++ b/stratosphere/fs_mitm/source/fsmitm_service.cpp
@@ -102,6 +102,9 @@ Result FsMitmService::OpenBisStorage(Out<std::shared_ptr<IStorageInterface>> out
             const bool allow_writes = this->title_id < 0x0100000000001000;
             if (bis_partition_id == BisStorageId_Boot0) {
                 storage = std::make_shared<IStorageInterface>(new Boot0Storage(bis_storage, this->title_id));
+            } else if (bis_partition_id == BisStorageId_Prodinfo) {
+                /* PRODINFO should *never* be writable. */
+                storage = std::make_shared<IStorageInterface>(new ROProxyStorage(bis_storage));
             } else {
                 if (allow_writes) {
                     storage = std::make_shared<IStorageInterface>(new ROProxyStorage(bis_storage));