RHSA-2025:4509HighCVSS 8.0

Red Hat Security Advisory: kernel security update

Published
May 6, 2025
Last Modified
August 19, 2026

🔗 CVE IDs covered (9)

CVE-2021-47386 →CVE-2023-52803 →CVE-2024-27056 →CVE-2025-21927 →CVE-2024-25739 →CVE-2024-35855 →CVE-2024-42322 →CVE-2024-43871 →CVE-2024-47745 →

📋 Description

CVE-2021-47386 — kernel: hwmon: (w83791d) Fix NULL pointer dereference by removing unnecessary structure field CVE-2023-52803 — kernel: SUNRPC: Fix RPC client cleaned up the freed pipefs dentries CVE-2024-25739 — kernel: crash due to a missing check for leb_size CVE-2024-27056 — kernel: wifi: iwlwifi: mvm: ensure offloading TID queue exists CVE-2024-35855 — kernel: mlxsw: spectrum_acl_tcam: Fix possible use-after-free during activity update CVE-2024-42322 — kernel: ipvs: properly dereference pe in ip_vs_add_service CVE-2024-43871 — kernel: devres: Fix memory leakage caused by driver API devm_free_percpu() CVE-2024-47745 — kernel: mm: call the security_mmap_file() LSM hook in remap_file_pages() CVE-2025-21927 — kernel: nvme-tcp: fix potential memory corruption in nvme_tcp_recv_pdu()

🎯 Affected products200

  • Red Hat CodeReady Linux Builder EUS (v.9.4)
  • Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • Red Hat Enterprise Linux BaseOS EUS (v.9.4)
  • Red Hat Enterprise Linux Real Time EUS (v.9.4)
  • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4)
  • bpftool-0:7.3.0-427.67.1.el9_4.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4)
  • bpftool-0:7.3.0-427.67.1.el9_4.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4)
  • bpftool-0:7.3.0-427.67.1.el9_4.s390x as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4)
  • bpftool-0:7.3.0-427.67.1.el9_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4)
  • bpftool-debuginfo-0:7.3.0-427.67.1.el9_4.aarch64 as a component of Red Hat CodeReady Linux Builder EUS (v.9.4)
  • bpftool-debuginfo-0:7.3.0-427.67.1.el9_4.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • bpftool-debuginfo-0:7.3.0-427.67.1.el9_4.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4)
  • bpftool-debuginfo-0:7.3.0-427.67.1.el9_4.ppc64le as a component of Red Hat CodeReady Linux Builder EUS (v.9.4)
  • bpftool-debuginfo-0:7.3.0-427.67.1.el9_4.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • bpftool-debuginfo-0:7.3.0-427.67.1.el9_4.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4)
  • bpftool-debuginfo-0:7.3.0-427.67.1.el9_4.s390x as a component of Red Hat CodeReady Linux Builder EUS (v.9.4)
  • bpftool-debuginfo-0:7.3.0-427.67.1.el9_4.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • bpftool-debuginfo-0:7.3.0-427.67.1.el9_4.s390x as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4)
  • bpftool-debuginfo-0:7.3.0-427.67.1.el9_4.x86_64 as a component of Red Hat CodeReady Linux Builder EUS (v.9.4)
  • bpftool-debuginfo-0:7.3.0-427.67.1.el9_4.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.4)
  • bpftool-debuginfo-0:7.3.0-427.67.1.el9_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4)
  • bpftool-debuginfo-0:7.3.0-427.67.1.el9_4.x86_64 as a component of Red Hat Enterprise Linux Real Time EUS (v.9.4)
  • bpftool-debuginfo-0:7.3.0-427.67.1.el9_4.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4)
  • kernel-0:5.14.0-427.67.1.el9_4.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4)
  • kernel-0:5.14.0-427.67.1.el9_4.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4)
  • kernel-0:5.14.0-427.67.1.el9_4.s390x as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4)
  • kernel-0:5.14.0-427.67.1.el9_4.src as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4)
  • kernel-0:5.14.0-427.67.1.el9_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4)
  • kernel-64k-0:5.14.0-427.67.1.el9_4.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4)
  • kernel-64k-core-0:5.14.0-427.67.1.el9_4.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.4)
  • +170 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: Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible. 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: The issue exists if SELinux W^X policy restrictions are being used. Workaround: To mitigate this issue, prevent the `nvme_tcp` module from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically. Note that this will make NVMe over TCP fabrics unavailable, and as such is not a suitable mitigation for systems relying on that technology.

🔗 References (10)