Patch "hwmon: (nct7802) Fix integer overflow seen when writing voltage limits" has been added to the 4.1-stable tree

Patch "hwmon: (nct7802) Fix integer overflow seen when writing voltage limits" has been added to the 4.1-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    hwmon: (nct7802) Fix integer overflow seen when writing voltage limits

to the 4.1-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     hwmon-nct7802-fix-integer-overflow-seen-when-writing-voltage-limits.patch
and it can be found in the queue-4.1 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 9200bc4c28cd8992eb5379345abd6b4f0c93df16 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Sat, 4 Jul 2015 13:23:42 -0700
Subject: hwmon: (nct7802) Fix integer overflow seen when writing voltage limits

From: Guenter Roeck <linux@roeck-us.net>

commit 9200bc4c28cd8992eb5379345abd6b4f0c93df16 upstream.

Writing a large value into a voltage limit attribute can result
in an overflow due to an auto-conversion from unsigned long to
unsigned int.

Cc: Constantine Shulyupin <const@MakeLinux.com>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/hwmon/nct7802.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/hwmon/nct7802.c
+++ b/drivers/hwmon/nct7802.c
@@ -195,7 +195,7 @@ abort:
 }
 
 static int nct7802_write_voltage(struct nct7802_data *data, int nr, int index,
-				 unsigned int voltage)
+				 unsigned long voltage)
 {
 	int shift = 8 - REG_VOLTAGE_LIMIT_MSB_SHIFT[index - 1][nr];
 	int err;


Patches currently in stable-queue which might be from linux@roeck-us.net are

queue-4.1/hwmon-nct7904-rename-pwm-attributes-to-match-hwmon-abi.patch
queue-4.1/hwmon-nct7802-fix-integer-overflow-seen-when-writing-voltage-limits.patch