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

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This fixes CVE-2014-1739.

Signed-off-by: Salva Peiró <speiro@ai2.upv.es>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: stable@vger.kernel.org
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Change-Id: Ie7914a3f97650dd933d7ff4c836ff7fc850bae4a
(cherry picked from commit e6a623460e)
This commit is contained in:
Salva Peiró 2014-04-30 19:48:02 +02:00 committed by Sean McCreary
parent 617d03fced
commit 9d3edeaebe
1 changed files with 1 additions and 0 deletions
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drivers/media/media-device.c
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@ -90,6 +90,7 @@ 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;