EsrtRepository might be NULL. So return EFI_OUT_OF_RESOURCES
when it is NULL.

Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Signed-off-by: Shenglei Zhang <shenglei.zhang@intel.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
---
 MdeModulePkg/Universal/EsrtDxe/EsrtImpl.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/MdeModulePkg/Universal/EsrtDxe/EsrtImpl.c b/MdeModulePkg/Universal/EsrtDxe/EsrtImpl.c
index f48125382dbc..fff17b98fa3d 100644
--- a/MdeModulePkg/Universal/EsrtDxe/EsrtImpl.c
+++ b/MdeModulePkg/Universal/EsrtDxe/EsrtImpl.c
@@ -239,6 +239,11 @@ DeleteEsrtEntry(
     goto EXIT;
   }
 
+  if (EsrtRepository == NULL) {
+    Status = EFI_OUT_OF_RESOURCES;
+    goto EXIT;
+  }
+
   if ((RepositorySize % sizeof(EFI_SYSTEM_RESOURCE_ENTRY)) != 0) {
     DEBUG((EFI_D_ERROR, "Repository Corrupt. Need to rebuild Repository.\n"));
     //
@@ -332,6 +337,11 @@ UpdateEsrtEntry(
              &RepositorySize
              );
 
+  if (EsrtRepository == NULL) {
+    Status = EFI_OUT_OF_RESOURCES;
+    goto EXIT;
+  }
+
   if (!EFI_ERROR(Status)) {
     //
     // if exist, update Esrt cache repository
-- 
2.18.0.windows.1


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