On Mon, 27 May 2019 at 09:19, Emil Velikov <emil.l.veli...@gmail.com> wrote:
>
> From: Emil Velikov <emil.veli...@collabora.com>
>
> The authentication can be circumvented, by design, by using the render
> node.
>
> From the driver POV there is no distinction between primary and render
> nodes, thus we can drop the token.
>
> Cc: Rob Clark <robdcl...@gmail.com>
> Cc: Sean Paul <s...@poorly.run>
> Cc: freedreno@lists.freedesktop.org
> Cc: David Airlie <airl...@linux.ie>
> Cc: Daniel Vetter <dan...@ffwll.ch>
> Signed-off-by: Emil Velikov <emil.veli...@collabora.com>
> ---
> drivers/gpu/drm/msm/msm_drv.c | 22 +++++++++++-----------
> 1 file changed, 11 insertions(+), 11 deletions(-)
>
> diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c
> index 31deb87abfc6..ac1c7a8a85d0 100644
> --- a/drivers/gpu/drm/msm/msm_drv.c
> +++ b/drivers/gpu/drm/msm/msm_drv.c
> @@ -983,17 +983,17 @@ static int msm_ioctl_submitqueue_close(struct
> drm_device *dev, void *data,
> }
>
> static const struct drm_ioctl_desc msm_ioctls[] = {
> - DRM_IOCTL_DEF_DRV(MSM_GET_PARAM, msm_ioctl_get_param,
> DRM_AUTH|DRM_RENDER_ALLOW),
> - DRM_IOCTL_DEF_DRV(MSM_GEM_NEW, msm_ioctl_gem_new,
> DRM_AUTH|DRM_RENDER_ALLOW),
> - DRM_IOCTL_DEF_DRV(MSM_GEM_INFO, msm_ioctl_gem_info,
> DRM_AUTH|DRM_RENDER_ALLOW),
> - DRM_IOCTL_DEF_DRV(MSM_GEM_CPU_PREP, msm_ioctl_gem_cpu_prep,
> DRM_AUTH|DRM_RENDER_ALLOW),
> - DRM_IOCTL_DEF_DRV(MSM_GEM_CPU_FINI, msm_ioctl_gem_cpu_fini,
> DRM_AUTH|DRM_RENDER_ALLOW),
> - DRM_IOCTL_DEF_DRV(MSM_GEM_SUBMIT, msm_ioctl_gem_submit,
> DRM_AUTH|DRM_RENDER_ALLOW),
> - DRM_IOCTL_DEF_DRV(MSM_WAIT_FENCE, msm_ioctl_wait_fence,
> DRM_AUTH|DRM_RENDER_ALLOW),
> - DRM_IOCTL_DEF_DRV(MSM_GEM_MADVISE, msm_ioctl_gem_madvise,
> DRM_AUTH|DRM_RENDER_ALLOW),
> - DRM_IOCTL_DEF_DRV(MSM_SUBMITQUEUE_NEW, msm_ioctl_submitqueue_new,
> DRM_AUTH|DRM_RENDER_ALLOW),
> - DRM_IOCTL_DEF_DRV(MSM_SUBMITQUEUE_CLOSE, msm_ioctl_submitqueue_close,
> DRM_AUTH|DRM_RENDER_ALLOW),
> - DRM_IOCTL_DEF_DRV(MSM_SUBMITQUEUE_QUERY, msm_ioctl_submitqueue_query,
> DRM_AUTH|DRM_RENDER_ALLOW),
> + DRM_IOCTL_DEF_DRV(MSM_GET_PARAM, msm_ioctl_get_param,
> DRM_RENDER_ALLOW),
> + DRM_IOCTL_DEF_DRV(MSM_GEM_NEW, msm_ioctl_gem_new,
> DRM_RENDER_ALLOW),
> + DRM_IOCTL_DEF_DRV(MSM_GEM_INFO, msm_ioctl_gem_info,
> DRM_RENDER_ALLOW),
> + DRM_IOCTL_DEF_DRV(MSM_GEM_CPU_PREP, msm_ioctl_gem_cpu_prep,
> DRM_RENDER_ALLOW),
> + DRM_IOCTL_DEF_DRV(MSM_GEM_CPU_FINI, msm_ioctl_gem_cpu_fini,
> DRM_RENDER_ALLOW),
> + DRM_IOCTL_DEF_DRV(MSM_GEM_SUBMIT, msm_ioctl_gem_submit,
> DRM_RENDER_ALLOW),
> + DRM_IOCTL_DEF_DRV(MSM_WAIT_FENCE, msm_ioctl_wait_fence,
> DRM_RENDER_ALLOW),
> + DRM_IOCTL_DEF_DRV(MSM_GEM_MADVISE, msm_ioctl_gem_madvise,
> DRM_RENDER_ALLOW),
> + DRM_IOCTL_DEF_DRV(MSM_SUBMITQUEUE_NEW, msm_ioctl_submitqueue_new,
> DRM_RENDER_ALLOW),
> + DRM_IOCTL_DEF_DRV(MSM_SUBMITQUEUE_CLOSE, msm_ioctl_submitqueue_close,
> DRM_RENDER_ALLOW),
> + DRM_IOCTL_DEF_DRV(MSM_SUBMITQUEUE_QUERY, msm_ioctl_submitqueue_query,
> DRM_RENDER_ALLOW),
> };
>
> static const struct vm_operations_struct vm_ops = {
> --
> 2.21.0
>
Humble poke?
Thanks,
Emil
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