APPLIED: [SRU][F][PATCH 0/1] CVE-2024-43863

Mehmet Basaran mehmet.basaran at canonical.com
Mon Jan 13 06:25:46 UTC 2025


Yuxuan Luo <yuxuan.luo at canonical.com> writes:

> [Impact]
> A potential deadlock could occur in the vmwgfx subsystem when performing
> fenced poll operation, leading to system denial of service.
>
> [Backport]
> Focal: A negligible context conflict exists due to missing be4f77ac6884
> ("drm/vmwgfx: Cleanup fifo mmio handling") commit. Backport the fix
> commit by ignore the context conflict and apply the changes.
>
> Bionic: Sent to ESM mailing list.
> Xenial: Sent to ESM mailing list.
>
> [Test]
> Due to lack of proper hardware, only compile and boot testing are
> performed.
>
> [Where Problems Could Occur]
> Potential regression might occur when vmwgfx users are performing poll
> operations.
>
> Zack Rusin (1):
>   drm/vmwgfx: Fix a deadlock in dma buf fence polling
>
>  drivers/gpu/drm/vmwgfx/vmwgfx_fence.c | 16 +++++++---------
>  1 file changed, 7 insertions(+), 9 deletions(-)
>
> --
> 2.43.0
>
>
> --
> kernel-team mailing list
> kernel-team at lists.ubuntu.com
> https://lists.ubuntu.com/mailman/listinfo/kernel-team
Applied to focal:linux master-next branch. Thanks!
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