[media] v4l2-ioctl: add blocks check for VIDIOC_SUBDEV_G/S_EDID
The maximum size of an EDID is 32768 bytes, which is 32768 / 128 = 256 blocks. Return -EINVAL if blocks > 256 to ensure that the memory allocation is sane. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Showing
Please register or sign in to comment