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

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commit e6a623460e upstream.

This fixes CVE-2014-1739.

Signed-off-by: Salva Peiró <speiro@ai2.upv.es>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Salva Peiró 2014-04-30 19:48:02 +02:00 • committed by Greg Kroah-Hartman
commit 4e32a7c66f
1 changed files with 1 additions and 0 deletions
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drivers/media/media-device.c
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@ -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;