diff --git a/lib/efi_loader/efi_image_loader.c b/lib/efi_loader/efi_image_loader.c
index a0eb63f..838e3a7 100644
--- a/lib/efi_loader/efi_image_loader.c
+++ b/lib/efi_loader/efi_image_loader.c
@@ -801,6 +801,23 @@
 }
 
 /**
+ * section_size() - determine size of section
+ *
+ * The size of a section in memory if normally given by VirtualSize.
+ * If VirtualSize is not provided, use SizeOfRawData.
+ *
+ * @sec:	section header
+ * Return:	size of section in memory
+ */
+static u32 section_size(IMAGE_SECTION_HEADER *sec)
+{
+	if (sec->Misc.VirtualSize)
+		return sec->Misc.VirtualSize;
+	else
+		return sec->SizeOfRawData;
+}
+
+/**
  * efi_load_pe() - relocate EFI binary
  *
  * This function loads all sections from a PE binary into a newly reserved
@@ -869,8 +886,9 @@
 	/* Calculate upper virtual address boundary */
 	for (i = num_sections - 1; i >= 0; i--) {
 		IMAGE_SECTION_HEADER *sec = &sections[i];
+
 		virt_size = max_t(unsigned long, virt_size,
-				  sec->VirtualAddress + sec->Misc.VirtualSize);
+				  sec->VirtualAddress + section_size(sec));
 	}
 
 	/* Read 32/64bit specific header bits */
@@ -931,11 +949,16 @@
 	/* Load sections into RAM */
 	for (i = num_sections - 1; i >= 0; i--) {
 		IMAGE_SECTION_HEADER *sec = &sections[i];
-		memset(efi_reloc + sec->VirtualAddress, 0,
-		       sec->Misc.VirtualSize);
+		u32 copy_size = section_size(sec);
+
+		if (copy_size > sec->SizeOfRawData) {
+			copy_size = sec->SizeOfRawData;
+			memset(efi_reloc + sec->VirtualAddress, 0,
+			       sec->Misc.VirtualSize);
+		}
 		memcpy(efi_reloc + sec->VirtualAddress,
 		       efi + sec->PointerToRawData,
-		       min(sec->Misc.VirtualSize, sec->SizeOfRawData));
+		       copy_size);
 	}
 
 	/* Run through relocations */