* [PATCH v2] media: v4l2-compat-ioctl32: fix missing length copy in put_v4l2_buffer32
@ 2016-01-15 2:58 Tiffany Lin
0 siblings, 0 replies; only message in thread
From: Tiffany Lin @ 2016-01-15 2:58 UTC (permalink / raw)
To: Mauro Carvalho Chehab, Hans Verkuil
Cc: Eddie Huang, Yingjoe Chen, linux-media, linux-mediatek, Tiffany Lin
In v4l2-compliance utility, test QUERYBUF required correct length
value to go through each planar to check planar's length in
multi-planar buffer type
Change-Id: I98faddc5711c24f17beda52e6d18c657add251ac
Signed-off-by: Tiffany Lin <tiffany.lin@mediatek.com>
---
drivers/media/v4l2-core/v4l2-compat-ioctl32.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/media/v4l2-core/v4l2-compat-ioctl32.c b/drivers/media/v4l2-core/v4l2-compat-ioctl32.c
index 327e83a..6c01920 100644
--- a/drivers/media/v4l2-core/v4l2-compat-ioctl32.c
+++ b/drivers/media/v4l2-core/v4l2-compat-ioctl32.c
@@ -516,6 +516,9 @@ static int put_v4l2_buffer32(struct v4l2_buffer *kp, struct v4l2_buffer32 __user
put_user(kp->reserved, &up->reserved))
return -EFAULT;
+ if (put_user(kp->length, &up->length))
+ return -EFAULT;
+
if (V4L2_TYPE_IS_MULTIPLANAR(kp->type)) {
num_planes = kp->length;
if (num_planes == 0)
--
1.7.9.5
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