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>

diff --git a/MdeModulePkg/Application/CapsuleApp/CapsuleApp.c b/MdeModulePkg/Application/CapsuleApp/CapsuleApp.c
index 3a1a0a1cb2e61b69273e907bbb996162c2419de3..90f1a02d9af6f8dc70c68281e8342c6d455cf12b 100644 (file)
--- a/MdeModulePkg/Application/CapsuleApp/CapsuleApp.c
+++ b/MdeModulePkg/Application/CapsuleApp/CapsuleApp.c
@@ -792,6 +792,10 @@ UefiMain (
     return EFI_INVALID_PARAMETER;\r
   }\r
   if (StrCmp(Argv[1], L"-D") == 0) {\r
+    if (Argc < 3) {\r
+      Print(L"CapsuleApp: NO input capsule name.\n");\r
+      return EFI_INVALID_PARAMETER;\r
+    }\r
     Status = DumpCapsule(Argv[2]);\r
     return Status;\r
   }\r