diff --git a/shadPS4/emulator/fileFormat/PKG.cpp b/shadPS4/emulator/fileFormat/PKG.cpp
index b859056e..e8a88b8e 100644
--- a/shadPS4/emulator/fileFormat/PKG.cpp
+++ b/shadPS4/emulator/fileFormat/PKG.cpp
@@ -54,6 +54,11 @@ bool PKG::extract(const std::string& filepath, const std::string& extractPath, s
 		}
 		file.Seek(0, fsSeekSet);
 		pkg = (U08*)mmap(pkgSize, file.fileDescr());
+		if (pkg == nullptr)
+		{
+			failreason = "Can't allocate size for image";
+			return false;
+		}
 
 		file.Read(pkg, pkgSize);
 		
diff --git a/shadPS4/emulator/fileFormat/PKG.h b/shadPS4/emulator/fileFormat/PKG.h
index 8685bee0..74c4bb6f 100644
--- a/shadPS4/emulator/fileFormat/PKG.h
+++ b/shadPS4/emulator/fileFormat/PKG.h
@@ -135,6 +135,10 @@ public:
 		if (hHandle != NULL) {
 			pStart = MapViewOfFile(hHandle, FILE_MAP_COPY, 0, 0, sLength);
 		}
+		if(pStart == NULL)
+		{
+			return nullptr;
+		}
 		return pStart;
 	}
 	int munmap(void* pStart) {