title: Red Hat Security Advisory: kernel security update
description: kernel: x86/xen: Add some null pointer checking to smp.c kernel: fs: sysfs: Fix reference leak in sysfs_break_active_protection() kernel: TIPC message reassembly use-after-free remote code execution vulnerability kernel: wifi: mac80211: Avoid address calculations via out of bounds array indexing
cpes: cpe:/o:redhat:rhel_aus:8.4::baseos cpe:/o:redhat:rhel_e4s:8.4::baseos cpe:/o:redhat:rhel_tus:8.4::baseos