CVE-2025-40327 perf/core: Fix system hang caused by cpu-clock usage

In the Linux kernel, the following vulnerability has been resolved: perf/core: Fix system hang caused by cpu-clock usage cpu-clock usage by the async-profiler tool can trigger a system hang, which got bisected back to the following commit by Octavia Togami: 18dbcbfabfff "perf: Fix the POLLHUP...