CVE-2026-53222

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

ptp: ocp: fix resource freeing order

Commit a60fc3294a37 ("ptp: rework ptp_clock_unregister() to disable

events") added a call to ptp_disable_all_events() which changes the

configuration of pins if they support EXTTS events. In ptp_ocp_detach()

pins resources are freed before ptp_clock_unregister() and it leads to

use-after-free during driver removal. Fix it by changing the order of

free/unregister calls. To avoid irq handler running on the other core

while ptp device unregistering, call synchronize_irq() after HW is

configured to stop producing irqs and no irqs are in-flight.