Security update for the Linux Kernel RT (Live Patch 7 for SUSE Linux Enterprise Micro 6.0)

This update for the SUSE Linux Enterprise Kernel 6.4.0-30.1 fixes various security issues The following security issues were fixed: - CVE-2025-39973: i40e: add validation for ring_len param (bsc#1252036). - CVE-2025-40018: ipvs: Defer ip_vs_ftp unregister during netns cleanup (bsc#1252689). - CVE-2025-40159: xsk: Harden userspace-supplied xdp_desc validation (bsc#1253404). - CVE-2025-71120: SUNRPC: svcauth_gss: avoid NULL deref on zero length gss_token in gss_read_proxy_verf (bsc#1256780). - CVE-2026-22999: net/sched: sch_qfq: do not free existing class in qfq_change_class() (bsc#1257238). - CVE-2026-23074: net/sched: Enforce that teql can only be used as root qdisc (bsc#1258051). - CVE-2026-23111: netfilter: nf_tables: fix inverted genmask check in nft_map_catchall_activate() (bsc#1258183). - CVE-2026-23209: macvlan: fix error recovery in macvlan_common_newlink() (bsc#1258784).