CVE-2026-80845

CVE-2026-80845 affects the Linux kernel xfrm subsystem, specifically the NAT keepalive worker. The root cause is an AB-BA lock inversion : nat_keepalive_work() acquires x->lock while holding xfrm_state_lock, whereas the SA deletion path (xfrm_state_delete() / __xfrm_state_delete()) takes the s...