[3.11.y.z extended stable] Patch "[media] media-device: fix infoleak in ioctl media_enum_entities()" has been added to staging queue

[Luis Henriques]

This is a note to let you know that I have just added a patch titled

    [media] media-device: fix infoleak in ioctl media_enum_entities()

to the linux-3.11.y-queue branch of the 3.11.y.z extended stable tree 
which can be found at:

 http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.11.y-queue

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.11.y.z tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Luis

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>From e5b8dd36bcc47f565e25b2aa69f3c56e0e9b4e68 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Salva=20Peir=C3=B3?= <speiro at ai2.upv.es>
Date: Wed, 30 Apr 2014 19:48:02 +0200
Subject: [media] media-device: fix infoleak in ioctl media_enum_entities()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit e6a623460e5fc960ac3ee9f946d3106233fd28d8 upstream.

This fixes CVE-2014-1739.

Signed-off-by: Salva Peiró <speiro at ai2.upv.es>
Acked-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab at samsung.com>
Signed-off-by: Luis Henriques <luis.henriques at canonical.com>
---
 drivers/media/media-device.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/media/media-device.c b/drivers/media/media-device.c
index d5a7a135f75d..703560fa5e73 100644
--- a/drivers/media/media-device.c
+++ b/drivers/media/media-device.c
@@ -93,6 +93,7 @@ static long media_device_enum_entities(struct media_device *mdev,
 	struct media_entity *ent;
 	struct media_entity_desc u_ent;

+	memset(&u_ent, 0, sizeof(u_ent));
 	if (copy_from_user(&u_ent.id, &uent->id, sizeof(u_ent.id)))
 		return -EFAULT;

--
1.9.1