From: Heinrich Schuchardt <xypron.glpk@gmx.de>
Date: Sat, 18 May 2019 16:11:54 +0000 (+0200)
Subject: efi_loader: parameter check OutputString
X-Git-Url: http://git.dujemihanovic.xyz/?a=commitdiff_plain;h=b31ca6bf8484ca10bab4ae544698294a4197bef9;p=u-boot.git

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 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;