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

drm/v3d: Stop active perfmon if it is being destroyed

If the active performance monitor (`v3d->active_perfmon`) is being
destroyed, stop it first. Currently, the active perfmon is not
stopped during destruction, leaving the `v3d->active_perfmon` pointer
stale. This can lead to undefined behavior and instability.

This patch ensures that the active perfmon is stopped before being
destroyed, aligning with the behavior introduced in commit
7d1fd3638ee3 ("drm/v3d: Stop the active perfmon before being destroyed").

https://git.kernel.org/stable/c/1c5673a2c8926adbb61f340c779b28e18188a8cd

https://git.kernel.org/stable/c/21f1435b1e6b012a07c42f36b206d2b66fc8f13b

https://git.kernel.org/stable/c/95036d4c01167568166108d42c2b0e9f8dbd7d2b

https://git.kernel.org/stable/c/eb0e0eca0eab93f310c6c37b8564049366704691

https://git.kernel.org/stable/c/f8805b12f477bd964e2820a87921c7b58cc2dee3