linux-kernel - [PATCH 142/173] drivers/rtc/rtc-ds1511.c: world-writable sysfs nvram file

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Message-Id: <20110425200239.163036828@pcw.home.local>
Date:	Mon, 25 Apr 2011 22:04:54 +0200
From:	Willy Tarreau <w@....eu>
To:	linux-kernel@...r.kernel.org, stable@...nel.org,
	stable-review@...nel.org
Cc:	Vasiliy Kulikov <segoon@...nwall.com>,
	Andy Sharp <andy.sharp@...tor.com>,
	Alessandro Zummo <a.zummo@...ertech.it>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Greg Kroah-Hartman <gregkh@...e.de>
Subject: [PATCH 142/173] drivers/rtc/rtc-ds1511.c: world-writable sysfs nvram file

2.6.27.59-stable review patch.  If anyone has any objections, please let us know.

------------------

From: Vasiliy Kulikov <segoon@...nwall.com>

commit 49d50fb1c28738ef6bad0c2b87d5355a1653fed5 upstream.

Don't allow everybogy to write to NVRAM.

Signed-off-by: Vasiliy Kulikov <segoon@...nwall.com>
Cc: Andy Sharp <andy.sharp@...tor.com>
Cc: Alessandro Zummo <a.zummo@...ertech.it>
Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@...ux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 drivers/rtc/rtc-ds1511.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: longterm-2.6.27/drivers/rtc/rtc-ds1511.c
===================================================================
--- longterm-2.6.27.orig/drivers/rtc/rtc-ds1511.c	2011-01-23 10:52:24.000000000 +0100
+++ longterm-2.6.27/drivers/rtc/rtc-ds1511.c	2011-04-25 17:05:58.082277591 +0200
@@ -493,7 +493,7 @@
 static struct bin_attribute ds1511_nvram_attr = {
 	.attr = {
 		.name = "nvram",
-		.mode = S_IRUGO | S_IWUGO,
+		.mode = S_IRUGO | S_IWUSR,
 		.owner = THIS_MODULE,
 	},
 	.size = DS1511_RAM_MAX,


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