Threats tagged 'ghsa-rp2m-6293-6r8v'

CVE-2025-21816 addresses a vulnerability in the Linux kernel's hrtimers subsystem where timers queued after the CPUHP_AP_HRTIMERS_DYING stage could be incorrectly handled. This could result in timers being armed on an offline CPU, causing them to be ignored and potentially disrupting timer-based operations. The fix ensures that any timer enqueued from an offline CPU is migrated to an online CPU, eliminating the need for previous workarounds in related subsystems like RCU.