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 3.10-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-3.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From b1d353ad3d5835b16724653b33c05124e1b5acf1 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Date: Tue, 26 Jan 2016 12:24:25 +0300
Subject: intel_scu_ipcutil: underflow in scu_reg_access()
From: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
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@xxxxxxxxxx>
Signed-off-by: Darren Hart <dvhart@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
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@xxxxxxxxxx are
queue-3.10/intel_scu_ipcutil-underflow-in-scu_reg_access.patch
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