RHSA-2024:8870MediumCVSS 7.3

Red Hat Security Advisory: kernel-rt security update

Published
November 5, 2024
Last Modified
August 19, 2026

🔗 CVE IDs covered (42)

CVE-2024-43889 →CVE-2022-48936 · pendingCVE-2024-27017 →CVE-2024-27062 →CVE-2024-35939 →CVE-2024-38541 →CVE-2024-40984 →CVE-2024-26851 →CVE-2024-26924 →CVE-2024-35839 →CVE-2024-40983 →CVE-2024-41009 →CVE-2024-24857 →CVE-2024-38586 →CVE-2024-39503 →CVE-2024-40961 →CVE-2024-42070 →CVE-2024-42301 →CVE-2024-43880 →CVE-2024-46826 →CVE-2024-35898 →CVE-2024-41042 →CVE-2024-42079 →CVE-2024-42292 →CVE-2024-38608 →CVE-2024-41092 →CVE-2024-43892 →CVE-2024-44989 →CVE-2024-44990 →CVE-2024-45018 →CVE-2024-47668 →CVE-2022-48773 →CVE-2023-52492 →CVE-2024-26976 →CVE-2024-42244 →CVE-2024-42284 →CVE-2024-44935 →CVE-2024-38540 →CVE-2024-40924 →CVE-2024-41093 →CVE-2024-41066 →CVE-2024-43854 →

📋 Description

CVE-2022-48773 — kernel: xprtrdma: fix pointer derefs in error cases of rpcrdma_ep_create CVE-2022-48936 — kernel: gso: do not skip outer ip header in case of ipip and net_failover CVE-2023-52492 — kernel: dmaengine: fix NULL pointer in channel unregistration function CVE-2024-24857 — kernel: net/bluetooth: race condition in conn_info_{min,max}_age_set() CVE-2024-26851 — kernel: netfilter: nf_conntrack_h323: Add protection for bmp length out of range CVE-2024-26924 — kernel: netfilter: nft_set_pipapo: do not free live element CVE-2024-26976 — kernel: KVM: Always flush async #PF workqueue when vCPU is being destroyed CVE-2024-27017 — kernel: netfilter: nft_set_pipapo: walk over current view on netlink dump CVE-2024-27062 — kernel: nouveau: lock the client object tree. CVE-2024-35839 — kernel: netfilter: bridge: replace physindev with physinif in nf_bridge_info CVE-2024-35898 — kernel: netfilter: nf_tables: Fix potential data-race in __nft_flowtable_type_get() CVE-2024-35939 — kernel: dma-direct: Leak pages on dma_set_decrypted() failure CVE-2024-38540 — kernel: bnxt_re: avoid shift undefined behavior in bnxt_qplib_alloc_init_hwq CVE-2024-38541 — kernel: of: module: add buffer overflow check in of_modalias() CVE-2024-38586 — kernel: r8169: Fix possible ring buffer corruption on fragmented Tx packets. CVE-2024-38608 — kernel: net/mlx5e: Fix netif state handling CVE-2024-39503 — kernel: netfilter: ipset: Fix race between namespace cleanup and gc in the list:set type CVE-2024-40924 — kernel: drm/i915/dpt: Make DPT object unshrinkable CVE-2024-40961 — kernel: ipv6: prevent possible NULL deref in fib6_nh_init() CVE-2024-40983 — kernel: tipc: force a dst refcount before doing decryption CVE-2024-40984 — kernel: ACPICA: Revert "ACPICA: avoid Info: mapping multiple BARs. Your kernel is fine." CVE-2024-41009 — kernel: bpf: Fix overrunning reservations in ringbuf CVE-2024-41042 — kernel: netfilter: nf_tables: prefer nft_chain_validate CVE-2024-41066 — kernel: ibmvnic: Add tx check to prevent skb leak CVE-2024-41092 — kernel: drm/i915/gt: Fix potential UAF by revoke of fence registers CVE-2024-41093 — kernel: drm/amdgpu: avoid using null object of framebuffer CVE-2024-42070 — kernel: netfilter: nf_tables: fully validate NFT_DATA_VALUE on store to data registers CVE-2024-42079 — kernel: gfs2: Fix NULL pointer dereference in gfs2_log_flush CVE-2024-42244 — kernel: USB: serial: mos7840: fix crash on resume CVE-2024-42284 — kernel: tipc: Return non-zero value from tipc_udp_addr2str() on error CVE-2024-42292 — kernel: kobject_uevent: Fix OOB access within zap_modalias_env() CVE-2024-42301 — kernel: dev/parport: fix the array out-of-bounds risk CVE-2024-43854 — kernel: block: initialize integrity buffer to zero before writing it to media CVE-2024-43880 — kernel: mlxsw: spectrum_acl_erp: Fix object nesting warning CVE-2024-43889 — kernel: padata: Fix possible divide-by-0 panic in padata_mt_helper() CVE-2024-43892 — kernel: memcg: protect concurrent access to mem_cgroup_idr CVE-2024-44935 — kernel: sctp: Fix null-ptr-deref in reuseport_add_sock(). CVE-2024-44989 — kernel: bonding: fix xfrm real_dev null pointer dereference CVE-2024-44990 — kernel: bonding: fix null pointer deref in bond_ipsec_offload_ok CVE-2024-45018 — kernel: netfilter: flowtable: initialise extack before use CVE-2024-46826 — kernel: ELF: fix kernel.randomize_va_space double read CVE-2024-47668 — kernel: lib/generic-radix-tree.c: Fix rare race in __genradix_ptr_alloc()

🎯 Affected products32

  • Red Hat Enterprise Linux NFV (v. 8)
  • Red Hat Enterprise Linux RT (v. 8)
  • kernel-rt-0:4.18.0-553.27.1.rt7.368.el8_10.src as a component of Red Hat Enterprise Linux NFV (v. 8)
  • kernel-rt-0:4.18.0-553.27.1.rt7.368.el8_10.src as a component of Red Hat Enterprise Linux RT (v. 8)
  • kernel-rt-0:4.18.0-553.27.1.rt7.368.el8_10.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)
  • kernel-rt-0:4.18.0-553.27.1.rt7.368.el8_10.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8)
  • kernel-rt-core-0:4.18.0-553.27.1.rt7.368.el8_10.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)
  • kernel-rt-core-0:4.18.0-553.27.1.rt7.368.el8_10.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8)
  • kernel-rt-debug-0:4.18.0-553.27.1.rt7.368.el8_10.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)
  • kernel-rt-debug-0:4.18.0-553.27.1.rt7.368.el8_10.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8)
  • kernel-rt-debug-core-0:4.18.0-553.27.1.rt7.368.el8_10.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)
  • kernel-rt-debug-core-0:4.18.0-553.27.1.rt7.368.el8_10.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8)
  • kernel-rt-debug-debuginfo-0:4.18.0-553.27.1.rt7.368.el8_10.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)
  • kernel-rt-debug-debuginfo-0:4.18.0-553.27.1.rt7.368.el8_10.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8)
  • kernel-rt-debug-devel-0:4.18.0-553.27.1.rt7.368.el8_10.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)
  • kernel-rt-debug-devel-0:4.18.0-553.27.1.rt7.368.el8_10.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8)
  • kernel-rt-debug-kvm-0:4.18.0-553.27.1.rt7.368.el8_10.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)
  • kernel-rt-debug-modules-0:4.18.0-553.27.1.rt7.368.el8_10.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)
  • kernel-rt-debug-modules-0:4.18.0-553.27.1.rt7.368.el8_10.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8)
  • kernel-rt-debug-modules-extra-0:4.18.0-553.27.1.rt7.368.el8_10.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)
  • kernel-rt-debug-modules-extra-0:4.18.0-553.27.1.rt7.368.el8_10.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8)
  • kernel-rt-debuginfo-0:4.18.0-553.27.1.rt7.368.el8_10.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)
  • kernel-rt-debuginfo-0:4.18.0-553.27.1.rt7.368.el8_10.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8)
  • kernel-rt-debuginfo-common-x86_64-0:4.18.0-553.27.1.rt7.368.el8_10.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)
  • kernel-rt-debuginfo-common-x86_64-0:4.18.0-553.27.1.rt7.368.el8_10.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8)
  • kernel-rt-devel-0:4.18.0-553.27.1.rt7.368.el8_10.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)
  • kernel-rt-devel-0:4.18.0-553.27.1.rt7.368.el8_10.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8)
  • kernel-rt-kvm-0:4.18.0-553.27.1.rt7.368.el8_10.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)
  • kernel-rt-modules-0:4.18.0-553.27.1.rt7.368.el8_10.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)
  • kernel-rt-modules-0:4.18.0-553.27.1.rt7.368.el8_10.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8)
  • +2 more not shown

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect. Workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability. Workaround: Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability. Workaround: 1. This flaw can be mitigated by preventing the affected netfilter (nf_tables) kernel module from being loaded. For instructions on how to blacklist a kernel module, please see https://access.redhat.com/solutions/41278. 2. If the module cannot be disabled, on non-containerized deployments of Red Hat Enterprise Linux, the mitigation is to disable user namespaces: ``` # echo "user.max_user_namespaces=0" > /etc/sysctl.d/userns.conf # sysctl -p /etc/sysctl.d/userns.conf ``` On containerized deployments, such as Red Hat OpenShift Container Platform, do not use the second mitigation (disabling user namespaces) as the functionality is needed to be enabled. The first mitigation (blacklisting nf_tables) is still viable for containerized deployments, providing the environment is not using netfilter. Workaround: To mitigate this issue, prevent module ibmvnic from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically. Workaround: Fix this issue by adding the __GFP_ZERO flag to allocations for writes.

🔗 References (39)