Patch "[media] media: v4l2-compat-ioctl32: fix missing reserved field copy in put_v4l2_create32" has been added to the 4.4-stable tree

Patch "[media] media: v4l2-compat-ioctl32: fix missing reserved field copy in put_v4l2_create32" has been added to the 4.4-stable tree

[gregkh]

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

    [media] media: v4l2-compat-ioctl32: fix missing reserved field copy in put_v4l2_create32

to the 4.4-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:
     media-v4l2-compat-ioctl32-fix-missing-reserved-field-copy-in-put_v4l2_create32.patch
and it can be found in the queue-4.4 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 baf43c6eace43868e490f18560287fa3481b2159 Mon Sep 17 00:00:00 2001
From: Tiffany Lin <tiffany.lin@mediatek.com>
Date: Mon, 14 Mar 2016 08:16:14 -0300
Subject: [media] media: v4l2-compat-ioctl32: fix missing reserved field copy in put_v4l2_create32

From: Tiffany Lin <tiffany.lin@mediatek.com>

commit baf43c6eace43868e490f18560287fa3481b2159 upstream.

In v4l2-compliance utility, test VIDIOC_CREATE_BUFS will check whether reserved
filed of v4l2_create_buffers filled with zero
Reserved field is filled with zero in v4l_create_bufs.
This patch copy reserved field of v4l2_create_buffer from kernel space to user
space

Signed-off-by: Tiffany Lin <tiffany.lin@mediatek.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/media/v4l2-core/v4l2-compat-ioctl32.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/media/v4l2-core/v4l2-compat-ioctl32.c
+++ b/drivers/media/v4l2-core/v4l2-compat-ioctl32.c
@@ -280,7 +280,8 @@ static int put_v4l2_format32(struct v4l2
 static int put_v4l2_create32(struct v4l2_create_buffers *kp, struct v4l2_create_buffers32 __user *up)
 {
 	if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_create_buffers32)) ||
-	    copy_to_user(up, kp, offsetof(struct v4l2_create_buffers32, format)))
+	    copy_to_user(up, kp, offsetof(struct v4l2_create_buffers32, format)) ||
+	    copy_to_user(up->reserved, kp->reserved, sizeof(kp->reserved)))
 		return -EFAULT;
 	return __put_v4l2_format32(&kp->format, &up->format);
 }


Patches currently in stable-queue which might be from tiffany.lin@mediatek.com are

queue-4.4/media-v4l2-compat-ioctl32-fix-missing-reserved-field-copy-in-put_v4l2_create32.patch