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| author | Tiffany Lin <tiffany.lin@mediatek.com> | 2016-03-14 08:16:14 -0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-06-07 18:23:38 -0700 |
| commit | c3373d15e99654d544c1419179b32b7892eb98df (patch) | |
| tree | e1ff01432209e7c2b9ea58a18bb1d11366331ca5 | |
| parent | de98345b2bf53e1ca92d1a7dd3ef023b752fa568 (diff) | |
| download | lwn-c3373d15e99654d544c1419179b32b7892eb98df.tar.gz lwn-c3373d15e99654d544c1419179b32b7892eb98df.zip | |
media: v4l2-compat-ioctl32: fix missing reserved field copy in put_v4l2_create32
commit baf43c6eace43868e490f18560287fa3481b2159 upstream.
In v4l2-compliance utility, test VIDIOC_CREATE_BUFS will check whether reserved
filed of v4l2_create_buffers filled with zero
Reserved field is filled with zero in v4l_create_bufs.
This patch copy reserved field of v4l2_create_buffer from kernel space to user
space
Signed-off-by: Tiffany Lin <tiffany.lin@mediatek.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/media/v4l2-core/v4l2-compat-ioctl32.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/media/v4l2-core/v4l2-compat-ioctl32.c b/drivers/media/v4l2-core/v4l2-compat-ioctl32.c index 019644ff627d..bacecbd68a6d 100644 --- a/drivers/media/v4l2-core/v4l2-compat-ioctl32.c +++ b/drivers/media/v4l2-core/v4l2-compat-ioctl32.c @@ -280,7 +280,8 @@ static int put_v4l2_format32(struct v4l2_format *kp, struct v4l2_format32 __user static int put_v4l2_create32(struct v4l2_create_buffers *kp, struct v4l2_create_buffers32 __user *up) { if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_create_buffers32)) || - copy_to_user(up, kp, offsetof(struct v4l2_create_buffers32, format))) + copy_to_user(up, kp, offsetof(struct v4l2_create_buffers32, format)) || + copy_to_user(up->reserved, kp->reserved, sizeof(kp->reserved))) return -EFAULT; return __put_v4l2_format32(&kp->format, &up->format); } |