Re: [PATCH for v3.18 00/18] Backport CVE-2017-13166 fixes to Kernel 3.18

[Inki Dae]

Hi Mauro,

2018ë 03ì 29ì 03:12ì Mauro Carvalho Chehab ì(ê) ì ê:
> Hi Greg,
> 
> Those are the backports meant to solve CVE-2017-13166 on Kernel 3.18.
> 
> It contains two v4l2-ctrls fixes that are required to avoid crashes
> at the test application.
> 
> I wrote two patches myself for Kernel 3.18 in order to solve some
> issues specific for Kernel 3.18 with aren't needed upstream.
> one is actually a one-line change backport. The other one makes
> sure that both 32-bits and 64-bits version of some ioctl calls
> will return the same value for a reserved field.
> 
> I noticed an extra bug while testing it, but the bug also hits upstream,
> and should be backported all the way down all stable/LTS versions.
> So, I'll send it the usual way, after merging upsream.

Really thanks for doing this. :) There would be many users who use Linux-3.18 for their products yet.

Thanks,
Inki Dae

> 
> Regards,
> Mauro
> 
> 
> Daniel Mentz (2):
>   media: v4l2-compat-ioctl32: Copy v4l2_window->global_alpha
>   media: v4l2-compat-ioctl32.c: refactor compat ioctl32 logic
> 
> Hans Verkuil (12):
>   media: v4l2-ioctl.c: don't copy back the result for -ENOTTY
>   media: v4l2-compat-ioctl32.c: add missing VIDIOC_PREPARE_BUF
>   media: v4l2-compat-ioctl32.c: fix the indentation
>   media: v4l2-compat-ioctl32.c: move 'helper' functions to
>     __get/put_v4l2_format32
>   media: v4l2-compat-ioctl32.c: avoid sizeof(type)
>   media: v4l2-compat-ioctl32.c: copy m.userptr in put_v4l2_plane32
>   media: v4l2-compat-ioctl32.c: fix ctrl_is_pointer
>   media: v4l2-compat-ioctl32.c: make ctrl_is_pointer work for subdevs
>   media: v4l2-compat-ioctl32.c: copy clip list in put_v4l2_window32
>   media: v4l2-compat-ioctl32.c: drop pr_info for unknown buffer type
>   media: v4l2-compat-ioctl32.c: don't copy back the result for certain
>     errors
>   media: v4l2-ctrls: fix sparse warning
> 
> Mauro Carvalho Chehab (2):
>   media: v4l2-compat-ioctl32: use compat_u64 for video standard
>   media: v4l2-compat-ioctl32: initialize a reserved field
> 
> Ricardo Ribalda (2):
>   vb2: V4L2_BUF_FLAG_DONE is set after DQBUF
>   media: media/v4l2-ctrls: volatiles should not generate CH_VALUE
> 
>  drivers/media/v4l2-core/v4l2-compat-ioctl32.c | 1020 +++++++++++++++----------
>  drivers/media/v4l2-core/v4l2-ctrls.c          |   96 ++-
>  drivers/media/v4l2-core/v4l2-ioctl.c          |    5 +-
>  drivers/media/v4l2-core/videobuf2-core.c      |    5 +
>  4 files changed, 691 insertions(+), 435 deletions(-)
>