CVE-2022-49709

CVE-2022-49709 is a Linux kernel issue where using RCU_NONIDLE during the __cfi_slowpath_diag cpuidle code path can leave the RCU state invalid. The concrete details across connected documents show the root cause: improper RCU usage in cpuidle, leading to a warning trace (rcu_eqs_enter, rcu_idle_...