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Date:	Mon, 10 May 2010 15:33:19 -0700
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...nel.org
Cc:	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Dan Carpenter <error27@...il.com>, Len Brown <lenb@...nel.org>,
	"Darrick J. Wong" <djwong@...ibm.com>,
	Len Brown <len.brown@...el.com>
Subject: [108/117] power_meter: acpi_device_class "power_meter_resource" too long

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

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

From: Dan Carpenter <error27@...il.com>

commit 18262714ca0fb65c290b8ea1807b2b02bb52d0e3 upstream.

acpi_device_class can only be 19 characters and a NULL terminator.

The current code has a buffer overflow in acpi_power_meter_add():
       strcpy(acpi_device_class(device), ACPI_POWER_METER_CLASS);

Signed-off-by: Dan Carpenter <error27@...il.com>
Cc: Len Brown <lenb@...nel.org>
Cc: "Darrick J. Wong" <djwong@...ibm.com>
Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>
Signed-off-by: Len Brown <len.brown@...el.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

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

--- a/drivers/acpi/power_meter.c
+++ b/drivers/acpi/power_meter.c
@@ -34,7 +34,7 @@
 #define ACPI_POWER_METER_NAME		"power_meter"
 ACPI_MODULE_NAME(ACPI_POWER_METER_NAME);
 #define ACPI_POWER_METER_DEVICE_NAME	"Power Meter"
-#define ACPI_POWER_METER_CLASS		"power_meter_resource"
+#define ACPI_POWER_METER_CLASS		"pwr_meter_resource"
 
 #define NUM_SENSORS			17
 


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