From eb68b4ef31cd7d0fe08becda7ac1e56b45f9054a Mon Sep 17 00:00:00 2001
From: Heinrich Schuchardt <xypron.glpk@gmx.de>
Date: Sun, 18 Feb 2018 00:08:00 +0100
Subject: [PATCH] efi_loader: check parameter in InstallConfigurationTable
Check that parameter guid is not NULL. This avoids a possible NULL
pointer exception.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
lib/efi_loader/efi_boottime.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/lib/efi_loader/efi_boottime.c b/lib/efi_loader/efi_boottime.c
index 3cee8d607c..9ca2e8161e 100644
--- a/lib/efi_loader/efi_boottime.c
+++ b/lib/efi_loader/efi_boottime.c
@@ -1333,6 +1333,9 @@ efi_status_t efi_install_configuration_table(const efi_guid_t *guid, void *table
{
int i;
+ if (!guid)
+ return EFI_INVALID_PARAMETER;
+
/* Check for guid override */
for (i = 0; i < systab.nr_tables; i++) {
if (!guidcmp(guid, &efi_conf_table[i].guid)) {
--
2.39.5