From acfdb6771cdf5db13f8a829b4e1c9f9b45178151 Mon Sep 17 00:00:00 2001
From: Jiaxin Wu <jiaxin.wu@intel.com>
Date: Fri, 5 Jul 2024 11:14:16 +0800
Subject: MdeModulePkg/VarCheckPolicyLib: Fix buffer valid check for MM

For MM, the MM Handlers do not need to validate the buffer if it is
the CommBuffer passed from MmCore through the MmiHandler() parameter.
Return TRUE directly in this case. Fix buffer valid check for MM in
this patch.

Signed-off-by: Jiaxin Wu <jiaxin.wu@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Cc: Hongbin1 Zhang <hongbin1.zhang@intel.com>
Cc: Wei6 Xu <wei6.xu@intel.com>
Cc: Dun Tan <dun.tan@intel.com>
Cc: Yuanhao Xie <yuanhao.xie@intel.com>
---
 MdeModulePkg/Library/VarCheckPolicyLib/VarCheckPolicyLibStandaloneMm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'MdeModulePkg/Library')

diff --git a/MdeModulePkg/Library/VarCheckPolicyLib/VarCheckPolicyLibStandaloneMm.c b/MdeModulePkg/Library/VarCheckPolicyLib/VarCheckPolicyLibStandaloneMm.c
index f93ad7e7c0..4bfaf1e261 100644
--- a/MdeModulePkg/Library/VarCheckPolicyLib/VarCheckPolicyLibStandaloneMm.c
+++ b/MdeModulePkg/Library/VarCheckPolicyLib/VarCheckPolicyLibStandaloneMm.c
@@ -47,5 +47,5 @@ VarCheckPolicyIsPrimaryBufferValid (
   IN UINT64                Length
   )
 {
-  return MmIsBufferOutsideMmValid (Buffer, Length);
+  return TRUE;
 }
-- 
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