diff --git a/rpcs3/Emu/Cell/Modules/cellGameExec.cpp b/rpcs3/Emu/Cell/Modules/cellGameExec.cpp
index 96f82c32ed..9bf583b867 100644
--- a/rpcs3/Emu/Cell/Modules/cellGameExec.cpp
+++ b/rpcs3/Emu/Cell/Modules/cellGameExec.cpp
@@ -15,6 +15,11 @@ s32 cellGameGetHomeDataExportPath(vm::ptr<char> exportPath)
 {
 	cellGameExec.warning("cellGameGetHomeDataExportPath(exportPath=*0x%x)", exportPath);
 
+	if (!exportPath)
+	{
+		return CELL_GAME_ERROR_PARAM;
+	}
+
 	// TODO: PlayStation home is defunct.
 
 	return CELL_GAME_ERROR_NOAPP;
@@ -30,6 +35,11 @@ s32 cellGameGetHomeDataImportPath(vm::ptr<char> importPath)
 {
 	cellGameExec.warning("cellGameGetHomeDataImportPath(importPath=*0x%x)", importPath);
 
+	if (!importPath)
+	{
+		return CELL_GAME_ERROR_PARAM;
+	}
+
 	// TODO: PlayStation home is defunct.
 
 	return CELL_GAME_ERROR_NOAPP;
@@ -39,6 +49,11 @@ s32 cellGameGetHomeLaunchOptionPath(vm::ptr<char> commonPath, vm::ptr<char> pers
 {
 	cellGameExec.todo("cellGameGetHomeLaunchOptionPath(commonPath=%s, personalPath=%s)", commonPath, personalPath);
 
+	if (!commonPath || !personalPath)
+	{
+		return CELL_GAME_ERROR_PARAM;
+	}
+
 	// TODO: PlayStation home is not supported atm.
 	return CELL_GAME_ERROR_NOAPP;
 }
@@ -47,6 +62,11 @@ s32 cellGameGetBootGameInfo(vm::ptr<u32> type, vm::ptr<char> dirName, vm::ptr<u3
 {
 	cellGameExec.todo("cellGameGetBootGameInfo(type=*0x%x, dirName=%s, execdata=*0x%x)", type, dirName, execdata);
 
+	if (!type || !dirName) // execdata can be NULL
+	{
+		return CELL_GAME_ERROR_PARAM;
+	}
+
 	// TODO: Support more boot types
 	*type = CELL_GAME_GAMETYPE_SYS;