From 8ee672fe32702b232728ae193abf57d9468b5de1 Mon Sep 17 00:00:00 2001
From: TheTurtle <geoster3d@gmail.com>
Date: Sun, 8 Dec 2024 00:10:20 +0200
Subject: [PATCH] hot-fix: Allow unpriviledged userfaultfd

---
 src/video_core/page_manager.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/video_core/page_manager.cpp b/src/video_core/page_manager.cpp
index 80b91b82..fefae81f 100644
--- a/src/video_core/page_manager.cpp
+++ b/src/video_core/page_manager.cpp
@@ -32,7 +32,7 @@ constexpr size_t PAGEBITS = 12;
 #ifdef ENABLE_USERFAULTFD
 struct PageManager::Impl {
     Impl(Vulkan::Rasterizer* rasterizer_) : rasterizer{rasterizer_} {
-        uffd = syscall(__NR_userfaultfd, O_CLOEXEC | O_NONBLOCK);
+        uffd = syscall(__NR_userfaultfd, O_CLOEXEC | O_NONBLOCK | UFFD_USER_MODE_ONLY);
         ASSERT_MSG(uffd != -1, "{}", Common::GetLastErrorMsg());
 
         // Request uffdio features from kernel.