linux-kernel - [PATCH] rocket: Don't let random users reset the controller

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Message-ID: <20071119145707.34a089ce@the-village.bc.nu>
Date:	Mon, 19 Nov 2007 14:57:07 +0000
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	linux-kernel@...r.kernel.org, akpm@...l.org
Subject: [PATCH] rocket: Don't let random users reset the controller

Signed-off-by: Alan Cox <alan@...hat.com>

diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.24-rc2-mm1/drivers/char/rocket.c linux-2.6.24-rc2-mm1/drivers/char/rocket.c
--- linux.vanilla-2.6.24-rc2-mm1/drivers/char/rocket.c	2007-11-16 17:55:11.000000000 +0000
+++ linux-2.6.24-rc2-mm1/drivers/char/rocket.c	2007-11-16 18:20:23.000000000 +0000
@@ -1401,6 +1399,9 @@
 {
 	int reset;
 
+	if (!capable(CAP_SYS_ADMIN))
+		return -EPERM;
+
 	if (copy_from_user(&reset, arg, sizeof (int)))
 		return -EFAULT;
 	if (reset)
-
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