Security update for the Linux Kernel (Live Patch 23 for SLE 15 SP5)

This update for the Linux Kernel 5.14.21-150500_55_94 fixes several issues. The following security issues were fixed: - CVE-2025-38177: sch_hfsc: make hfsc_qlen_notify() idempotent (bsc#1246356). - CVE-2025-38181: calipso: Fix null-ptr-deref in calipso_req_{set,del}attr() (bsc#1246001). - CVE-2025-38498: do_change_type(): refuse to operate on unmounted/not ours mounts (bsc#1247499). - CVE-2025-38555: usb: gadget : fix use-after-free in composite_dev_cleanup() (bsc#1248298). - CVE-2025-21756: vsock: Keep the binding until socket destruction (bsc#1245795). - CVE-2025-21755: vsock: Orphan socket after transport release (bsc#1245795).