Patch "intel_scu_ipcutil: underflow in scu_reg_access()" has been added to the 3.14-stable tree

Patch "intel_scu_ipcutil: underflow in scu_reg_access()" has been added to the 3.14-stable tree

[gregkh]

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

    intel_scu_ipcutil: underflow in scu_reg_access()

to the 3.14-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:
     intel_scu_ipcutil-underflow-in-scu_reg_access.patch
and it can be found in the queue-3.14 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 b1d353ad3d5835b16724653b33c05124e1b5acf1 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Tue, 26 Jan 2016 12:24:25 +0300
Subject: intel_scu_ipcutil: underflow in scu_reg_access()

From: Dan Carpenter <dan.carpenter@oracle.com>

commit b1d353ad3d5835b16724653b33c05124e1b5acf1 upstream.

"count" is controlled by the user and it can be negative.  Let's prevent
that by making it unsigned.  You have to have CAP_SYS_RAWIO to call this
function so the bug is not as serious as it could be.

Fixes: 5369c02d951a ('intel_scu_ipc: Utility driver for intel scu ipc')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/platform/x86/intel_scu_ipcutil.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/platform/x86/intel_scu_ipcutil.c
+++ b/drivers/platform/x86/intel_scu_ipcutil.c
@@ -49,7 +49,7 @@ struct scu_ipc_data {
 
 static int scu_reg_access(u32 cmd, struct scu_ipc_data  *data)
 {
-	int count = data->count;
+	unsigned int count = data->count;
 
 	if (count == 0 || count == 3 || count > 4)
 		return -EINVAL;


Patches currently in stable-queue which might be from dan.carpenter@oracle.com are

queue-3.14/iio-fix-some-warning-messages.patch
queue-3.14/intel_scu_ipcutil-underflow-in-scu_reg_access.patch