CVE-2023-52621

CVE-2023-52621: In the Linux kernel, a fix was added to bpf map helpers (bpf_map_lookup_elem, bpf_map_update_elem, bpf_map_delete_elem) to check rcu_read_lock_trace_held() before use when running sleepable BPF programs. The vulnerability arises when sleepable BPF programs manipulate BPF maps unde...