RHSA-2025:23445HighCVSS 7.8

Red Hat Security Advisory: kernel security update

Published
December 17, 2025
Last Modified
August 5, 2026

🔗 CVE IDs covered (31)

CVE-2023-53213 →CVE-2023-53297 →CVE-2025-39864 →CVE-2025-39825 →CVE-2022-48701 →CVE-2022-50406 →CVE-2025-39817 →CVE-2022-50367 →CVE-2025-38718 →CVE-2025-38724 →CVE-2025-38729 →CVE-2025-39697 →CVE-2022-50410 →CVE-2023-53178 →CVE-2023-53393 →CVE-2025-40186 →CVE-2022-50356 →CVE-2022-50403 · pendingCVE-2023-53354 →CVE-2023-53373 →CVE-2024-46679 →CVE-2025-39841 →CVE-2025-39883 →CVE-2025-39955 →CVE-2022-50386 →CVE-2022-50408 →CVE-2023-53365 →CVE-2023-53226 →CVE-2023-53305 →CVE-2023-53680 →CVE-2025-39757 →

📋 Description

CVE-2022-48701 — kernel: ALSA: usb-audio: ALSA USB Audio Out-of-Bounds Bug CVE-2022-50356 — kernel: net: sched: sfb: fix null pointer access issue when sfb_init() fails CVE-2022-50367 — kernel: fs: fix UAF/GPF bug in nilfs_mdt_destroy CVE-2022-50386 — kernel: Bluetooth: L2CAP: Fix user-after-free CVE-2022-50403 — kernel: ext4: fix undefined behavior in bit shift for ext4_check_flag_values CVE-2022-50406 — kernel: iomap: iomap: fix memory corruption when recording errors during writeback CVE-2022-50408 — kernel: wifi: brcmfmac: fix use-after-free bug in brcmf_netdev_start_xmit() CVE-2022-50410 — kernel: NFSD: Protect against send buffer overflow in NFSv2 READ CVE-2023-53178 — kernel: mm: fix zswap writeback race condition CVE-2023-53213 — kernel: wifi: brcmfmac: slab-out-of-bounds read in brcmf_get_assoc_ies() CVE-2023-53226 — kernel: wifi: mwifiex: Fix OOB and integer underflow when rx packets CVE-2023-53297 — kernel: Bluetooth: L2CAP: fix "bad unlock balance" in l2cap_disconnect_rsp CVE-2023-53305 — kernel: Bluetooth: L2CAP: Fix use-after-free CVE-2023-53354 — kernel: skbuff: skb_segment, Call zero copy functions before using skbuff frags CVE-2023-53365 — kernel: ip6mr: Fix skb_under_panic in ip6mr_cache_report() CVE-2023-53373 — kernel: crypto: seqiv - Handle EBUSY correctly CVE-2023-53393 — kernel: RDMA/mlx5: Fix mlx5_ib_get_hw_stats when used for device CVE-2023-53680 — kernel: NFSD: Avoid calling OPDESC() with ops->opnum == OP_ILLEGAL CVE-2024-46679 — kernel: ethtool: check device is present when getting link settings CVE-2025-38718 — kernel: sctp: linearize cloned gso packets in sctp_rcv CVE-2025-38724 — kernel: nfsd: handle get_client_locked() failure in nfsd4_setclientid_confirm() CVE-2025-38729 — kernel: ALSA: usb-audio: Validate UAC3 power domain descriptors, too CVE-2025-39697 — kernel: NFS: Fix a race when updating an existing write CVE-2025-39757 — kernel: ALSA: usb-audio: Validate UAC3 cluster segment descriptors CVE-2025-39817 — kernel: efivarfs: Fix slab-out-of-bounds in efivarfs_d_compare CVE-2025-39825 — kernel: smb: client: fix race with concurrent opens in rename(2) CVE-2025-39841 — kernel: scsi: lpfc: Fix buffer free/clear order in deferred receive path CVE-2025-39864 — kernel: wifi: cfg80211: fix use-after-free in cmp_bss() CVE-2025-39883 — kernel: mm/memory-failure: fix VM_BUG_ON_PAGE(PagePoisoned(page)) when unpoison memory CVE-2025-39955 — kernel: tcp: Clear tcp_sk(sk)->fastopen_rsk in tcp_disconnect() CVE-2025-40186 — kernel: Linux kernel: Privilege escalation or Denial of Service via TCP Fast Open vulnerability

🎯 Affected products26

  • Red Hat Enterprise Linux BaseOS AUS (v. 8.2)
  • bpftool-0:4.18.0-193.178.1.el8_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v. 8.2)
  • bpftool-debuginfo-0:4.18.0-193.178.1.el8_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v. 8.2)
  • kernel-0:4.18.0-193.178.1.el8_2.src as a component of Red Hat Enterprise Linux BaseOS AUS (v. 8.2)
  • kernel-0:4.18.0-193.178.1.el8_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v. 8.2)
  • kernel-abi-whitelists-0:4.18.0-193.178.1.el8_2.noarch as a component of Red Hat Enterprise Linux BaseOS AUS (v. 8.2)
  • kernel-core-0:4.18.0-193.178.1.el8_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v. 8.2)
  • kernel-debug-0:4.18.0-193.178.1.el8_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v. 8.2)
  • kernel-debug-core-0:4.18.0-193.178.1.el8_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v. 8.2)
  • kernel-debug-debuginfo-0:4.18.0-193.178.1.el8_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v. 8.2)
  • kernel-debug-devel-0:4.18.0-193.178.1.el8_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v. 8.2)
  • kernel-debug-modules-0:4.18.0-193.178.1.el8_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v. 8.2)
  • kernel-debug-modules-extra-0:4.18.0-193.178.1.el8_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v. 8.2)
  • kernel-debuginfo-0:4.18.0-193.178.1.el8_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v. 8.2)
  • kernel-debuginfo-common-x86_64-0:4.18.0-193.178.1.el8_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v. 8.2)
  • kernel-devel-0:4.18.0-193.178.1.el8_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v. 8.2)
  • kernel-doc-0:4.18.0-193.178.1.el8_2.noarch as a component of Red Hat Enterprise Linux BaseOS AUS (v. 8.2)
  • kernel-modules-0:4.18.0-193.178.1.el8_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v. 8.2)
  • kernel-modules-extra-0:4.18.0-193.178.1.el8_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v. 8.2)
  • kernel-tools-0:4.18.0-193.178.1.el8_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v. 8.2)
  • kernel-tools-debuginfo-0:4.18.0-193.178.1.el8_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v. 8.2)
  • kernel-tools-libs-0:4.18.0-193.178.1.el8_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v. 8.2)
  • perf-0:4.18.0-193.178.1.el8_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v. 8.2)
  • perf-debuginfo-0:4.18.0-193.178.1.el8_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v. 8.2)
  • python3-perf-0:4.18.0-193.178.1.el8_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v. 8.2)
  • python3-perf-debuginfo-0:4.18.0-193.178.1.el8_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v. 8.2)

✅ 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 don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability. Workaround: To mitigate these vulnerabilities on the operating system level, disable the Bluetooth functionality via blocklisting kernel modules in the Linux kernel. The kernel modules can be prevented from being loaded by using system-wide modprobe rules. Instructions on how to disable Bluetooth modules are available on the customer portal at https://access.redhat.com/solutions/2682931. Alternatively, bluetooth can be disabled within the hardware or at the BIOS level, which will also provide effective mitigation as the kernel will not detect Bluetooth hardware on the system. Workaround: To mitigate this issue, prevent module brcmfmac 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: To mitigate this issue, prevent module mwifiex 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: To mitigate this issue, prevent module nfs 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: To mitigate this issue, prevent module sctp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.

🔗 References (34)