Database/AI/ML frameworks & serving
Linux perf/x86/amd/uncore - memory leak in the events array: Per-CPU northbridge and last-level-cache uncore contexts
CVE-2022-49784AI/ML frameworks & servingcurated
Impact
Per-CPU northbridge and last-level-cache uncore contexts are allocated but not freed when a CPU comes online, leaking memory on every hotplug. Uncore counters are what you use to measure memory bandwidth and cache behaviour on AMD - i.e. the telemetry an AI operator actually cares about - so this leaks in proportion to how much you monitor.
Who can reach it
Local, driven by CPU hotplug with uncore perf events in use.
What to do
Distro kernel update plus reboot.
References
This entry is curated: imported from vendor advisories with machine assistance, not yet individually verified. Confirm against your vendor's advisory before acting, and report anything wrong.