From b31ca6bf8484ca10bab4ae544698294a4197bef9 Mon Sep 17 00:00:00 2001
From: Heinrich Schuchardt <xypron.glpk@gmx.de>
Date: Sat, 18 May 2019 18:11:54 +0200
Subject: [PATCH] efi_loader: parameter check OutputString
Check the parameters against NULL.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
---
lib/efi_loader/efi_console.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/lib/efi_loader/efi_console.c b/lib/efi_loader/efi_console.c
index 909fd5c29e..b2cb18e6d6 100644
--- a/lib/efi_loader/efi_console.c
+++ b/lib/efi_loader/efi_console.c
@@ -136,6 +136,11 @@ static efi_status_t EFIAPI efi_cout_output_string(
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;
--
2.39.5