CVE-2026-64036

The CVE-2026-64036 issue affects the Linux kernel cgroup/rstat path. The vuln arises because css_rstat_updated(), a BPF kfunc, accepts a caller-provided cpu value used for per-cpu rstat lookups without validating it against a valid CPU. A BPF iter/cgroup program with CAP_BPF and CAP_PERFMON could...