blob: c7e89f85681346e1607b69cb8429672fd8fe70de [file] [log] [blame]
From 49d50fb1c28738ef6bad0c2b87d5355a1653fed5 Mon Sep 17 00:00:00 2001
From: Vasiliy Kulikov <segoon@openwall.com>
Date: Tue, 22 Mar 2011 16:34:53 -0700
Subject: drivers/rtc/rtc-ds1511.c: world-writable sysfs nvram file
From: Vasiliy Kulikov <segoon@openwall.com>
commit 49d50fb1c28738ef6bad0c2b87d5355a1653fed5 upstream.
Don't allow everybogy to write to NVRAM.
Signed-off-by: Vasiliy Kulikov <segoon@openwall.com>
Cc: Andy Sharp <andy.sharp@onstor.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
drivers/rtc/rtc-ds1511.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/rtc/rtc-ds1511.c
+++ b/drivers/rtc/rtc-ds1511.c
@@ -482,7 +482,7 @@ ds1511_nvram_write(struct kobject *kobj,
static struct bin_attribute ds1511_nvram_attr = {
.attr = {
.name = "nvram",
- .mode = S_IRUGO | S_IWUGO,
+ .mode = S_IRUGO | S_IWUSR,
},
.size = DS1511_RAM_MAX,
.read = ds1511_nvram_read,