CVE-2025-21819

In the Linux kernel, the following vulnerability has been resolved:

Revert “drm/amd/display: Use HW lock mgr for PSR1”

This reverts commit
a2b5a9956269 (“drm/amd/display: Use HW lock mgr for PSR1”)

Because it may cause system hang while connect with two edp panel.

More information : https://git.kernel.org/stable/c/915697c2e69ac8d14dad498e6d6f43dbb7de3787