CVE-2026-80705: drm/amd/display: check if dml21_add_phantom_plane() is successful
Published Aug 28, 2026
·Updated
In the Linux kernel, the following vulnerability has been resolved:
drm/amd/display: check if dml21addphantomplane() is successful
Verify that the phantom plane was allocated to avoid a later segfault.
(cherry picked from commit 5adb54abe5a8e82cbff7f8806db30a5f4924329f)
Affected Software
1 affected component
Linux Linux kernel
Event History
Aug 28, 2026
CVE Published
via MITRE·06:53 AM
Data Sourced
via MITRE·06:53 AM
Description
Frequently Asked Questions
1
What is the observed failure mode if the affected code encounters an allocation failure?
A later segmentation fault can occur when a phantom plane was not allocated successfully.
2
How can I identify the upstream fixes for this issue?
The referenced stable kernel fixes are commits 062cfd6c678f6647c8841f684d6dadab08d95512 and 000acb4ce7fb9feba3072ce468ad681f6585cd5d.