RHSA-2025:15224MediumCVSS 7.3

Red Hat Security Advisory: kernel-rt security update

Published
September 4, 2025
Last Modified
July 30, 2026

🔗 CVE IDs covered (4)

CVE-2025-38085 →CVE-2025-38159 →CVE-2025-38250 →CVE-2025-38464 →

📋 Description

CVE-2025-38085 — kernel: mm/hugetlb: fix huge_pmd_unshare() vs GUP-fast race CVE-2025-38159 — kernel: wifi: rtw88: fix the 'para' buffer size to avoid reading out of bounds CVE-2025-38250 — kernel: Bluetooth: hci_core: Fix use-after-free in vhci_flush() CVE-2025-38464 — kernel: tipc: Fix use-after-free in tipc_conn_close()

🎯 Affected products36

  • Red Hat Enterprise Linux Real Time E4S (v.9.2)
  • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2)
  • kernel-rt-0:5.14.0-284.136.1.rt14.421.el9_2.src as a component of Red Hat Enterprise Linux Real Time E4S (v.9.2)
  • kernel-rt-0:5.14.0-284.136.1.rt14.421.el9_2.src as a component of Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2)
  • kernel-rt-0:5.14.0-284.136.1.rt14.421.el9_2.x86_64 as a component of Red Hat Enterprise Linux Real Time E4S (v.9.2)
  • kernel-rt-0:5.14.0-284.136.1.rt14.421.el9_2.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2)
  • kernel-rt-core-0:5.14.0-284.136.1.rt14.421.el9_2.x86_64 as a component of Red Hat Enterprise Linux Real Time E4S (v.9.2)
  • kernel-rt-core-0:5.14.0-284.136.1.rt14.421.el9_2.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2)
  • kernel-rt-debug-0:5.14.0-284.136.1.rt14.421.el9_2.x86_64 as a component of Red Hat Enterprise Linux Real Time E4S (v.9.2)
  • kernel-rt-debug-0:5.14.0-284.136.1.rt14.421.el9_2.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2)
  • kernel-rt-debug-core-0:5.14.0-284.136.1.rt14.421.el9_2.x86_64 as a component of Red Hat Enterprise Linux Real Time E4S (v.9.2)
  • kernel-rt-debug-core-0:5.14.0-284.136.1.rt14.421.el9_2.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2)
  • kernel-rt-debug-debuginfo-0:5.14.0-284.136.1.rt14.421.el9_2.x86_64 as a component of Red Hat Enterprise Linux Real Time E4S (v.9.2)
  • kernel-rt-debug-debuginfo-0:5.14.0-284.136.1.rt14.421.el9_2.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2)
  • kernel-rt-debug-devel-0:5.14.0-284.136.1.rt14.421.el9_2.x86_64 as a component of Red Hat Enterprise Linux Real Time E4S (v.9.2)
  • kernel-rt-debug-devel-0:5.14.0-284.136.1.rt14.421.el9_2.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2)
  • kernel-rt-debug-kvm-0:5.14.0-284.136.1.rt14.421.el9_2.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2)
  • kernel-rt-debug-modules-0:5.14.0-284.136.1.rt14.421.el9_2.x86_64 as a component of Red Hat Enterprise Linux Real Time E4S (v.9.2)
  • kernel-rt-debug-modules-0:5.14.0-284.136.1.rt14.421.el9_2.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2)
  • kernel-rt-debug-modules-core-0:5.14.0-284.136.1.rt14.421.el9_2.x86_64 as a component of Red Hat Enterprise Linux Real Time E4S (v.9.2)
  • kernel-rt-debug-modules-core-0:5.14.0-284.136.1.rt14.421.el9_2.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2)
  • kernel-rt-debug-modules-extra-0:5.14.0-284.136.1.rt14.421.el9_2.x86_64 as a component of Red Hat Enterprise Linux Real Time E4S (v.9.2)
  • kernel-rt-debug-modules-extra-0:5.14.0-284.136.1.rt14.421.el9_2.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2)
  • kernel-rt-debuginfo-0:5.14.0-284.136.1.rt14.421.el9_2.x86_64 as a component of Red Hat Enterprise Linux Real Time E4S (v.9.2)
  • kernel-rt-debuginfo-0:5.14.0-284.136.1.rt14.421.el9_2.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2)
  • kernel-rt-debuginfo-common-x86_64-0:5.14.0-284.136.1.rt14.421.el9_2.x86_64 as a component of Red Hat Enterprise Linux Real Time E4S (v.9.2)
  • kernel-rt-debuginfo-common-x86_64-0:5.14.0-284.136.1.rt14.421.el9_2.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2)
  • kernel-rt-devel-0:5.14.0-284.136.1.rt14.421.el9_2.x86_64 as a component of Red Hat Enterprise Linux Real Time E4S (v.9.2)
  • kernel-rt-devel-0:5.14.0-284.136.1.rt14.421.el9_2.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2)
  • kernel-rt-kvm-0:5.14.0-284.136.1.rt14.421.el9_2.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2)
  • +6 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: To mitigate this issue, prevent module rtw88 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 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 tipc 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 (7)