MdeModulePkg: PXE Driver's LoadFile protocol should check FilePath

[mirror_edk2.git] / MdeModulePkg / Universal / Network / UefiPxeBcDxe / PxeBcImpl.c

diff --git a/MdeModulePkg/Universal/Network/UefiPxeBcDxe/PxeBcImpl.c b/MdeModulePkg/Universal/Network/UefiPxeBcDxe/PxeBcImpl.c
index 4dd7944e6a9a94abda5031ff7c067c6ba057a96a..72923f1b38a4641aee6e6569995118c4c6303d69 100644 (file)
--- a/MdeModulePkg/Universal/Network/UefiPxeBcDxe/PxeBcImpl.c
+++ b/MdeModulePkg/Universal/Network/UefiPxeBcDxe/PxeBcImpl.c
@@ -2776,6 +2776,10 @@ EfiPxeLoadFile (
   UINT64                      TmpBufSize;\r
   BOOLEAN                     MediaPresent;\r
 \r
+  if (FilePath == NULL || !IsDevicePathEnd (FilePath)) {\r
+    return EFI_INVALID_PARAMETER;\r
+  }\r
+  \r
   Private         = PXEBC_PRIVATE_DATA_FROM_LOADFILE (This);\r
   PxeBc           = &Private->PxeBc;\r
   NewMakeCallback = FALSE;\r