CVE-2026-10646 Use-after-return in `zsock_getaddrinfo()` when a timed-out DNS query is retried without cancellation

Zephyr's BSD-sockets getaddrinfo implementation subsys/net/lib/sockets/getaddrinfo.c passes a pointer to a stack-allocated state object struct getaddrinfostate aistate as the userdata of an asynchronous DNS resolver query. The socket layer waits on a semaphore with a timeout deliberately set...