linux/drivers/media/pci/cx25821
Hans Verkuil a877e2771a [media] cx25821: do not expose broken video output streams
The cx25821 driver has support for one audio output channel and two video
output channels.
This is implemented in a very ugly and very evil way through a custom ioctl
that passes the filename of a file containing the video data, which is then
read by the driver itself using vfs.
There are a number of problems with this:
1) it's very ugly and very evil (I can't say that often enough).
2) V4L2 supports video output, so why not use that?
3) it's very buggy, closing the filehandle through which you passed the ioctl
   will oops the kernel.
4) it's a nasty security leak since this allows you to load any file in the
   system as a video or audio source, so in theory you can output /etc/passwd
   to audio or video out and record & decode it on another device.
Because of all these issues we no longer register those output video nodes.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-15 08:34:37 -03:00
..
cx25821-alsa.c
cx25821-audio-upstream.c [media] cx25821: Cleanup filename assignment code 2013-03-18 20:37:09 -03:00
cx25821-audio-upstream.h
cx25821-audio.h
cx25821-biffuncs.h [media] cx25821: get rid of warning: no previous prototype 2012-10-27 18:02:07 -02:00
cx25821-cards.c
cx25821-core.c Drivers: media: remove __dev* attributes. 2013-01-03 15:57:02 -08:00
cx25821-gpio.c
cx25821-i2c.c [media] cx25821: get rid of warning: no previous prototype 2012-10-27 18:02:07 -02:00
cx25821-medusa-defines.h
cx25821-medusa-reg.h
cx25821-medusa-video.c
cx25821-medusa-video.h
cx25821-reg.h
cx25821-sram.h
cx25821-video-upstream-ch2.c [media] drivers/media/pci/cx25821/cx25821-video-upstream-ch2.c: fix error return code 2012-11-22 15:39:11 -02:00
cx25821-video-upstream-ch2.h
cx25821-video-upstream.c [media] drivers/media/pci/cx25821/cx25821-video-upstream.c: fix error return code 2012-11-22 14:20:22 -02:00
cx25821-video-upstream.h
cx25821-video.c [media] cx25821: do not expose broken video output streams 2013-04-15 08:34:37 -03:00
cx25821-video.h [media] v4l2: add const to argument of write-only s_register ioctl 2013-03-24 08:47:01 -03:00
cx25821.h
Kconfig drivers/media/video/cx25821: remove depends on CONFIG_EXPERIMENTAL 2013-01-11 11:38:06 -08:00
Makefile [media] btcx-risc: move from media/i2c to media/common 2013-02-08 16:11:25 -02:00