Patch "media: V4L2: ov7670: fix a wrong index, potentially Oopsing the kernel from user-space" has been added to the 3.14-stable tree

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

    media: V4L2: ov7670: fix a wrong index, potentially Oopsing the kernel from user-space

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:
     media-v4l2-ov7670-fix-a-wrong-index-potentially-oopsing-the-kernel-from-user-space.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@xxxxxxxxxxxxxxx> know about it.


>From cfece5857ca51d1dcdb157017aba226f594e9dcf Mon Sep 17 00:00:00 2001
From: Guennadi Liakhovetski <g.liakhovetski@xxxxxx>
Date: Mon, 14 Apr 2014 10:49:34 -0300
Subject: media: V4L2: ov7670: fix a wrong index, potentially Oopsing the kernel from user-space

From: Guennadi Liakhovetski <g.liakhovetski@xxxxxx>

commit cfece5857ca51d1dcdb157017aba226f594e9dcf upstream.

Commit 75e2bdad8901a0b599e01a96229be922eef1e488 "ov7670: allow
configuration of image size, clock speed, and I/O method" uses a wrong
index to iterate an array. Apart from being wrong, it also uses an
unchecked value from user-space, which can cause access to unmapped
memory in the kernel, triggered by a normal desktop user with rights to
use V4L2 devices.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@xxxxxx>
Acked-by: Jonathan Corbet <corbet@xxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 drivers/media/i2c/ov7670.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/media/i2c/ov7670.c
+++ b/drivers/media/i2c/ov7670.c
@@ -1109,7 +1109,7 @@ static int ov7670_enum_framesizes(struct
 	 * windows that fall outside that.
 	 */
 	for (i = 0; i < n_win_sizes; i++) {
-		struct ov7670_win_size *win = &info->devtype->win_sizes[index];
+		struct ov7670_win_size *win = &info->devtype->win_sizes[i];
 		if (info->min_width && win->width < info->min_width)
 			continue;
 		if (info->min_height && win->height < info->min_height)


Patches currently in stable-queue which might be from g.liakhovetski@xxxxxx are

queue-3.14/media-v4l2-fix-vidioc_create_bufs-in-64-32-bit-compatibility-mode.patch
queue-3.14/media-v4l2-ov7670-fix-a-wrong-index-potentially-oopsing-the-kernel-from-user-space.patch
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