ACK: [SRU Mantic 0/1] CVE-2023-5633

[Roxana Nicolescu]

On 30/10/2023 09:44, Thadeu Lima de Souza Cascardo wrote:
> [Impact]
> vmwgfx driver can be exploited by users with access to drm devices to drop
> a refcount earlier, leading to a use-after-free, which may allow for local
> privilege escalation.
>
> [Backport]
> On 6.5, this is a clean cherry-pick. Though this affects 6.2 and 6.1, the
> backports for those will be submitted at a later opportunity.
>
> [Potential regression]
> Graphics users on some virtual environments may regress.
>
> Zack Rusin (1):
>    drm/vmwgfx: Keep a gem reference to user bos in surfaces
>
>   drivers/gpu/drm/vmwgfx/vmwgfx_bo.c       |  7 +++---
>   drivers/gpu/drm/vmwgfx/vmwgfx_bo.h       | 17 +++++++++----
>   drivers/gpu/drm/vmwgfx/vmwgfx_cotable.c  |  6 ++---
>   drivers/gpu/drm/vmwgfx/vmwgfx_drv.h      |  4 +++
>   drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c  | 10 +++++---
>   drivers/gpu/drm/vmwgfx/vmwgfx_gem.c      | 18 +++++++++++---
>   drivers/gpu/drm/vmwgfx/vmwgfx_kms.c      |  6 ++---
>   drivers/gpu/drm/vmwgfx/vmwgfx_overlay.c  |  2 +-
>   drivers/gpu/drm/vmwgfx/vmwgfx_resource.c | 12 ++++-----
>   drivers/gpu/drm/vmwgfx/vmwgfx_shader.c   |  4 +--
>   drivers/gpu/drm/vmwgfx/vmwgfx_surface.c  | 31 +++++++++---------------
>   11 files changed, 68 insertions(+), 49 deletions(-)
>
Acked-by: Roxana Nicolescu <roxana.nicolescu at canonical.com>