efi_loader: parameter check OutputString
Check the parameters against NULL.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
diff --git a/lib/efi_loader/efi_console.c b/lib/efi_loader/efi_console.c
index 909fd5c..b2cb18e 100644
--- a/lib/efi_loader/efi_console.c
+++ b/lib/efi_loader/efi_console.c
@@ -136,6 +136,11 @@
EFI_ENTRY("%p, %p", this, string);
+ if (!this || !string) {
+ ret = EFI_INVALID_PARAMETER;
+ goto out;
+ }
+
buf = malloc(utf16_utf8_strlen(string) + 1);
if (!buf) {
ret = EFI_OUT_OF_RESOURCES;