CVE-2025-38087 is a use-after-free vulnerability in the Linux kernel's taprio_dev_notifier function within the net/sched subsystem. The issue arises because taprio_dev_notifier() is not protected by an RCU read-side critical section, allowing a race condition with advance_sched() that can lead to use-after-free. This flaw has been fixed by adding rcu_read_lock() inside taprio_dev_notifier().