title: Red Hat Security Advisory: kernel security update
description: kernel: Bluetooth: l2cap: fix null-ptr-deref in l2cap_chan_timeout kernel: bpf: Add BPF_PROG_TYPE_CGROUP_SKB attach type enforcement in BPF_LINK_CREATE kernel: bpf: Fix a kernel verifier crash in stacksafe() kernel: nfsd: ensure that nfsd4_fattr_args.context is zeroed out kernel: bpf: Fix use-after-free in bpf_uprobe_multi_link_attach() kernel: bpf: Fix a sdiv overflow issue kernel: arm64: probes: Remove broken LDR (literal) uprobe support kernel: xfrm: fix one more kernel-infoleak in algo dumping kernel: KVM: nSVM: Ignore nCR3[4:0] when loading PDPTEs from memory kernel: Bluetooth: ISO: Fix UAF on iso_sock_timeout kernel: Bluetooth: SCO: Fix UAF on sco_sock_timeout kernel: xfrm: validate new SA&#39;s prefixlen using SA family when sel.family is unset kernel: Bluetooth: bnep: fix wild-memory-access in proto_unregister kernel: irqchip/gic-v4: Don't allow a VMOVP on a dying VPE kernel: sched/numa: Fix the potential null pointer dereference in task_numa_work() kernel: Bluetooth: hci: fix null-ptr-deref in hci_read_supported_codecs kernel: bpf: Fix out-of-bounds write in trie_get_next_key()
cpes: cpe:/a:redhat:enterprise_linux:9::appstream cpe:/a:redhat:enterprise_linux:9::crb cpe:/a:redhat:enterprise_linux:9::nfv cpe:/a:redhat:enterprise_linux:9::realtime cpe:/o:redhat:enterprise_linux:9::baseos