From 9cac205d672415b4eee090684452024389cc400b Mon Sep 17 00:00:00 2001
From: Brian Gianforcaro <b.gianfo@gmail.com>
Date: Mon, 13 Jan 2020 01:26:20 -0800
Subject: [PATCH] Kernel: Fix SMAP in setkeymap syscall

It looks like setkeymap was missed when
the SMAP functionality was introduced.

Disable SMAP only in the scope where we
actually read the usermode addresses.
---
 Kernel/Process.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Kernel/Process.cpp b/Kernel/Process.cpp
index 044b2b827c..8b897997f6 100644
--- a/Kernel/Process.cpp
+++ b/Kernel/Process.cpp
@@ -3955,6 +3955,7 @@ int Process::sys$setkeymap(const Syscall::SC_setkeymap_params* params)
     if (!validate_read(altgr_map, 0x80))
         return -EFAULT;
 
+    SmapDisabler disabler;
     KeyboardDevice::the().set_maps(map, shift_map, alt_map, altgr_map);
     return 0;
 }