Tool to manage UEFI Secure Boot MoK Keys
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Gary Ching-Pang Lin <glin@suse.com>
Date: Tue, 4 Nov 2014 15:50:03 +0800
Subject: [PATCH] Fix the potential buffer overflow
Signed-off-by: Gary Ching-Pang Lin <glin@suse.com>
---
src/mokutil.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/src/mokutil.c b/src/mokutil.c
index 5b34f22..93fb6fa 100644
--- a/src/mokutil.c
+++ b/src/mokutil.c
@@ -1743,7 +1743,7 @@ set_toggle (const char * VarName, uint32_t state)
MokToggleVar tvar;
char *password = NULL;
unsigned int pw_len;
- efi_char16_t efichar_pass[SB_PASSWORD_MAX];
+ efi_char16_t efichar_pass[SB_PASSWORD_MAX+1];
int ret = -1;
printf ("password length: %d~%d\n", SB_PASSWORD_MIN, SB_PASSWORD_MAX);
@@ -1757,8 +1757,7 @@ set_toggle (const char * VarName, uint32_t state)
efichar_from_char (efichar_pass, password,
SB_PASSWORD_MAX * sizeof(efi_char16_t));
- memcpy(tvar.password, efichar_pass,
- SB_PASSWORD_MAX * sizeof(efi_char16_t));
+ memcpy(tvar.password, efichar_pass, sizeof(tvar.password));
tvar.mok_toggle_state = state;