media: v4l: ioctl: Validate num_planes before using it

Browse source

The for loop to reset the memory of the plane reserved fields runs over
num_planes provided by the user without validating it. Ensure num_planes
is no more than VIDEO_MAX_PLANES before the loop.

Fixes: 4e1e0eb0e0 ("media: v4l2-ioctl: Zero v4l2_plane_pix_format reserved fields")

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

...

This commit is contained in:

Sakari Ailus 2019-01-10 07:43:19 -05:00 • committed by Mauro Carvalho Chehab

parent dd91642ac7

commit 9048b2e15b

1 changed files with 8 additions and 0 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

8

drivers/media/v4l2-core/v4l2-ioctl.c

View file