ACK: [SRU Bionic, Focal, OEM-5.10, HWE-5.11, Impish, OEM-5.14, Jammy 0/1] CVE-2022-22942

[Ian May]

Acked-by: Ian May <ian.may at canonical.com>

On 2022-01-27 17:58:10 , Thadeu Lima de Souza Cascardo wrote:
> [Impact]
> Unprivileged users with DRM access on a system using vmwgfx could gain
> access to files opened by other processes.
> 
> [Fix]
> Backports were provided by author and tested on kernels 4.15, 5.4, 5.10,
> 5.11, 5.13, 5.14 and 5.15.
> 
> [Test case]
> A program that exercises the changed path gets EFAULT as expected.
> 
> [Potential regression]
> Only vmwgfx users should be affected.
> 
> Mathias Krause (1):
>   UBUNTU: SAUCE: drm/vmwgfx: Fix stale file descriptors on failed
>     usercopy
> 
>  drivers/gpu/drm/vmwgfx/vmwgfx_drv.h     |  5 ++--
>  drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c | 34 ++++++++++++-------------
>  drivers/gpu/drm/vmwgfx/vmwgfx_fence.c   |  2 +-
>  drivers/gpu/drm/vmwgfx/vmwgfx_kms.c     |  2 +-
>  4 files changed, 21 insertions(+), 22 deletions(-)
> 
> -- 
> 2.32.0
> 
> 
> -- 
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