APPLIED: [SRU][J][PATCH 0/1] CVE-2024-56538

[Stefan Bader]

On 17/11/2025 20:41, Alice C. Munduruca wrote:
> [ Impact ]
> 
> It is possible for the zynqmp gpu drm driver to handle the
> `drm_device` in such a way where usespace accesses can lead to UAFs.
> To mitigate this error path, we should unplug the device alongside
> freeing it.
> 
> [ Fix ]
> 
> jammy: backported from upstream commit.
> 
> [ Tests ]
> 
> Compile and boot tested. (+stress-ng cpu,iomix)
> 
> [ Where problems could occur ]
> 
> This is essentially a one line cherry pick (simply in a different
> location than the upstream patch) and so the risk of regression
> is very low, especially given the limited scope of changes. (just
> zynqmp hardware)
> 
> 
> Sean Anderson (1):
>    drm: zynqmp_kms: Unplug DRM device before removal
> 
>   drivers/gpu/drm/xlnx/zynqmp_dpsub.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 


Applied to jammy:linux/master-next. Thanks.

-Stefan

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