[PATCH 5/5] MdeModulePkg/PiSmmCore: Disallow stripped Image relocations

["Marvin Häuser" <mhaeuser@posteo.de>]

The SMM stack does not support loading Images to preferred addresses
in any way. Add checks that Image relocations have not been stripped.

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Vitaly Cheptsov <vit9696@protonmail.com>
Signed-off-by: Marvin Häuser <mhaeuser@posteo.de>
---
 MdeModulePkg/Core/PiSmmCore/Dispatcher.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/MdeModulePkg/Core/PiSmmCore/Dispatcher.c b/MdeModulePkg/Core/PiSmmCore/Dispatcher.c
index 76ee9e0b89cc..69ea61e13434 100644
--- a/MdeModulePkg/Core/PiSmmCore/Dispatcher.c
+++ b/MdeModulePkg/Core/PiSmmCore/Dispatcher.c
@@ -447,6 +447,18 @@ SmmLoadImage (
     }
     return Status;
   }
+
+  //
+  // Stripped Image relocations are not supported for both fixed-address and
+  // dynamic loading.
+  //
+  if (ImageContext.RelocationsStripped) {
+    if (Buffer != NULL) {
+      gBS->FreePool (Buffer);
+    }
+    return EFI_UNSUPPORTED;
+  }
+
   //
   // if Loading module at Fixed Address feature is enabled, then  cut out a memory range started from TESG BASE
   // to hold the Smm driver code
-- 
2.31.1