linux-kernel - [PATCH 053/173] platform: x86: asus_acpi: world-writable procfs files

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Message-Id: <20110425200235.298507662@pcw.home.local>
Date:	Mon, 25 Apr 2011 22:03:25 +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>,
	Matthew Garrett <mjg@...hat.com>,
	Greg Kroah-Hartman <gregkh@...e.de>
Subject: [PATCH 053/173] platform: x86: asus_acpi: world-writable procfs files

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

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

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

commit 8040835760adf0ef66876c063d47f79f015fb55d upstream.

Don't allow everybody to change ACPI settings.  The comment says that it
is done deliberatelly, however, the comment before disp_proc_write()
says that at least one of these setting is experimental.

Signed-off-by: Vasiliy Kulikov <segoon@...nwall.com>
Signed-off-by: Matthew Garrett <mjg@...hat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 drivers/platform/x86/asus_acpi.c |    8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

--- a/drivers/acpi/asus_acpi.c
+++ b/drivers/acpi/asus_acpi.c
@@ -1001,14 +1001,8 @@ static int asus_hotk_add_fs(struct acpi_
 	struct proc_dir_entry *proc;
 	mode_t mode;
 
-	/*
-	 * If parameter uid or gid is not changed, keep the default setting for
-	 * our proc entries (-rw-rw-rw-) else, it means we care about security,
-	 * and then set to -rw-rw----
-	 */
-
 	if ((asus_uid == 0) && (asus_gid == 0)) {
-		mode = S_IFREG | S_IRUGO | S_IWUGO;
+		mode = S_IFREG | S_IRUGO | S_IWUSR | S_IWGRP;
 	} else {
 		mode = S_IFREG | S_IRUSR | S_IRGRP | S_IWUSR | S_IWGRP;
 		printk(KERN_WARNING "  asus_uid and asus_gid parameters are "


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