CVE-2026-93044

CVE-2026-93044 affects the Linux kernel BPF subsystem. The BPF interpreter does not support arena-related instructions (ST/LDX/STX). When a BPF program using an arena map falls back to the interpreter (via core.c::__bpf_prog_select_runtime()), execution hits a BUG_ON() at kernel/bpf/core.c:2349, ...