[PATCH 3.2 44/92] [media] media-device: fix infoleak in ioctl media_enum_entities()

[Ben Hutchings]

3.2.60-rc1 review patch.  If anyone has any objections, please let me know.

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

From: Salva Peirà <speiro@xxxxxxxxxx>

commit e6a623460e5fc960ac3ee9f946d3106233fd28d8 upstream.

This fixes CVE-2014-1739.

Signed-off-by: Salva Peirà <speiro@xxxxxxxxxx>
Acked-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@xxxxxxxxxxx>
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
---
 drivers/media/media-device.c | 1 +
 1 file changed, 1 insertion(+)

--- a/drivers/media/media-device.c
+++ b/drivers/media/media-device.c
@@ -90,6 +90,7 @@ static long media_device_enum_entities(s
 	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;
 

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