From 9729d6d282a6d7ce88e64c9119cecdf79edf4e88 Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Date: Mon, 29 Oct 2018 13:32:38 -0400
Subject: [PATCH] media: vivid: set min width/height to a value > 0
Git-commit: 9729d6d282a6d7ce88e64c9119cecdf79edf4e88
Patch-mainline: v5.0-rc1
References: bsc#1051510

The capture DV timings capabilities allowed for a minimum width and
height of 0. So passing a timings struct with 0 values is allowed
and will later cause a division by zero.

Ensure that the width and height must be >= 16 to avoid this.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Reported-by: syzbot+57c3d83d71187054d56f@syzkaller.appspotmail.com
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/media/platform/vivid/vivid-vid-common.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/platform/vivid/vivid-vid-common.c b/drivers/media/platform/vivid/vivid-vid-common.c
index 9645a91b8782..661f4015fba1 100644
--- a/drivers/media/platform/vivid/vivid-vid-common.c
+++ b/drivers/media/platform/vivid/vivid-vid-common.c
@@ -21,7 +21,7 @@ const struct v4l2_dv_timings_cap vivid_dv_timings_cap = {
 	.type = V4L2_DV_BT_656_1120,
 	/* keep this initialization for compatibility with GCC < 4.4.6 */
 	.reserved = { 0 },
-	V4L2_INIT_BT_TIMINGS(0, MAX_WIDTH, 0, MAX_HEIGHT, 14000000, 775000000,
+	V4L2_INIT_BT_TIMINGS(16, MAX_WIDTH, 16, MAX_HEIGHT, 14000000, 775000000,
 		V4L2_DV_BT_STD_CEA861 | V4L2_DV_BT_STD_DMT |
 		V4L2_DV_BT_STD_CVT | V4L2_DV_BT_STD_GTF,
 		V4L2_DV_BT_CAP_PROGRESSIVE | V4L2_DV_BT_CAP_INTERLACED)
-- 
2.16.4