CVE-2026-10657

The CVE-2026-10657 vulnerability affects Zephyr's DNS resolver when MDNS (CONFIG_MDNS_RESOLVER) is enabled. The code uses memcmp(strrchr(query, '.'), ".local", 7) to detect mDNS queries, reading a fixed 7 bytes from the suffix pointer. If the final label is shorter than 7 bytes (e.g., .org, .com,...