linux-kernel - [PATCH 3.11 055/138] [media] media-device: fix infoleak in ioctl media_enum

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Message-Id: <1401795584-22664-56-git-send-email-luis.henriques@canonical.com>
Date:	Tue,  3 Jun 2014 12:38:21 +0100
From:	Luis Henriques <luis.henriques@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Salva Peiró <speiro@....upv.es>,
	Mauro Carvalho Chehab <m.chehab@...sung.com>,
	Luis Henriques <luis.henriques@...onical.com>
Subject: [PATCH 3.11 055/138] [media] media-device: fix infoleak in ioctl media_enum_entities()

3.11.10.11 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: =?UTF-8?q?Salva=20Peir=C3=B3?= <speiro@....upv.es>

commit e6a623460e5fc960ac3ee9f946d3106233fd28d8 upstream.

This fixes CVE-2014-1739.

Signed-off-by: Salva Peiró <speiro@....upv.es>
Acked-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@...sung.com>
Signed-off-by: Luis Henriques <luis.henriques@...onical.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

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