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

[Magali Lemes]

On 03/12/2024 20:44, Yuxuan Luo wrote:
> [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(-)
> 

Acked-by: Magali Lemes <magali.lemes at canonical.com>