From 1c6dd45b9b3359d5c9d4d2a09ec05f81ad9ccaef Mon Sep 17 00:00:00 2001
From: Star Zeng <star.zeng@intel.com>
Date: Wed, 11 Jul 2018 11:45:50 +0800
Subject: [PATCH] MdeModulePkg CapsuleApp: Check Arg count for -D option

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Yonghong Zhu <yonghong.zhu@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
---
 MdeModulePkg/Application/CapsuleApp/CapsuleApp.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/MdeModulePkg/Application/CapsuleApp/CapsuleApp.c b/MdeModulePkg/Application/CapsuleApp/CapsuleApp.c
index 3a1a0a1cb2..90f1a02d9a 100644
--- a/MdeModulePkg/Application/CapsuleApp/CapsuleApp.c
+++ b/MdeModulePkg/Application/CapsuleApp/CapsuleApp.c
@@ -792,6 +792,10 @@ UefiMain (
     return EFI_INVALID_PARAMETER;
   }
   if (StrCmp(Argv[1], L"-D") == 0) {
+    if (Argc < 3) {
+      Print(L"CapsuleApp: NO input capsule name.\n");
+      return EFI_INVALID_PARAMETER;
+    }
     Status = DumpCapsule(Argv[2]);
     return Status;
   }
-- 
2.39.2