RHSA-2025:14749HighCVSS 7.1

Red Hat Security Advisory: kernel-rt security update

Published
August 27, 2025
Last Modified
August 4, 2026

🔗 CVE IDs covered (8)

CVE-2025-37890 →CVE-2025-38350 →CVE-2022-49385 →CVE-2022-49977 →CVE-2022-49991 →CVE-2022-50044 →CVE-2023-53047 →CVE-2025-22026 →

📋 Description

CVE-2022-49385 — kernel: driver: base: fix UAF when driver_attach failed CVE-2022-49977 — kernel: ftrace: Fix NULL pointer dereference in is_ftrace_trampoline when ftrace is dead CVE-2022-49991 — kernel: mm/hugetlb: avoid corrupting page->mapping in hugetlb_mcopy_atomic_pte CVE-2022-50044 — kernel: net: qrtr: start MHI channel after endpoit creation CVE-2023-53047 — kernel: tee: amdtee: fix race condition in amdtee_open_session CVE-2025-22026 — kernel: nfsd: don't ignore the return code of svc_proc_register() CVE-2025-37890 — kernel: net_sched: hfsc: Fix a UAF vulnerability in class with netem as child qdisc CVE-2025-38350 — kernel: net/sched: Always pass notifications when child class becomes empty

🎯 Affected products32

  • Red Hat Enterprise Linux NFV E4S (v.9.0)
  • Red Hat Enterprise Linux Real Time E4S (v.9.0)
  • kernel-rt-0:5.14.0-70.144.1.rt21.216.el9_0.src as a component of Red Hat Enterprise Linux NFV E4S (v.9.0)
  • kernel-rt-0:5.14.0-70.144.1.rt21.216.el9_0.src as a component of Red Hat Enterprise Linux Real Time E4S (v.9.0)
  • kernel-rt-0:5.14.0-70.144.1.rt21.216.el9_0.x86_64 as a component of Red Hat Enterprise Linux NFV E4S (v.9.0)
  • kernel-rt-0:5.14.0-70.144.1.rt21.216.el9_0.x86_64 as a component of Red Hat Enterprise Linux Real Time E4S (v.9.0)
  • kernel-rt-core-0:5.14.0-70.144.1.rt21.216.el9_0.x86_64 as a component of Red Hat Enterprise Linux NFV E4S (v.9.0)
  • kernel-rt-core-0:5.14.0-70.144.1.rt21.216.el9_0.x86_64 as a component of Red Hat Enterprise Linux Real Time E4S (v.9.0)
  • kernel-rt-debug-0:5.14.0-70.144.1.rt21.216.el9_0.x86_64 as a component of Red Hat Enterprise Linux NFV E4S (v.9.0)
  • kernel-rt-debug-0:5.14.0-70.144.1.rt21.216.el9_0.x86_64 as a component of Red Hat Enterprise Linux Real Time E4S (v.9.0)
  • kernel-rt-debug-core-0:5.14.0-70.144.1.rt21.216.el9_0.x86_64 as a component of Red Hat Enterprise Linux NFV E4S (v.9.0)
  • kernel-rt-debug-core-0:5.14.0-70.144.1.rt21.216.el9_0.x86_64 as a component of Red Hat Enterprise Linux Real Time E4S (v.9.0)
  • kernel-rt-debug-debuginfo-0:5.14.0-70.144.1.rt21.216.el9_0.x86_64 as a component of Red Hat Enterprise Linux NFV E4S (v.9.0)
  • kernel-rt-debug-debuginfo-0:5.14.0-70.144.1.rt21.216.el9_0.x86_64 as a component of Red Hat Enterprise Linux Real Time E4S (v.9.0)
  • kernel-rt-debug-devel-0:5.14.0-70.144.1.rt21.216.el9_0.x86_64 as a component of Red Hat Enterprise Linux NFV E4S (v.9.0)
  • kernel-rt-debug-devel-0:5.14.0-70.144.1.rt21.216.el9_0.x86_64 as a component of Red Hat Enterprise Linux Real Time E4S (v.9.0)
  • kernel-rt-debug-kvm-0:5.14.0-70.144.1.rt21.216.el9_0.x86_64 as a component of Red Hat Enterprise Linux NFV E4S (v.9.0)
  • kernel-rt-debug-modules-0:5.14.0-70.144.1.rt21.216.el9_0.x86_64 as a component of Red Hat Enterprise Linux NFV E4S (v.9.0)
  • kernel-rt-debug-modules-0:5.14.0-70.144.1.rt21.216.el9_0.x86_64 as a component of Red Hat Enterprise Linux Real Time E4S (v.9.0)
  • kernel-rt-debug-modules-extra-0:5.14.0-70.144.1.rt21.216.el9_0.x86_64 as a component of Red Hat Enterprise Linux NFV E4S (v.9.0)
  • kernel-rt-debug-modules-extra-0:5.14.0-70.144.1.rt21.216.el9_0.x86_64 as a component of Red Hat Enterprise Linux Real Time E4S (v.9.0)
  • kernel-rt-debuginfo-0:5.14.0-70.144.1.rt21.216.el9_0.x86_64 as a component of Red Hat Enterprise Linux NFV E4S (v.9.0)
  • kernel-rt-debuginfo-0:5.14.0-70.144.1.rt21.216.el9_0.x86_64 as a component of Red Hat Enterprise Linux Real Time E4S (v.9.0)
  • kernel-rt-debuginfo-common-x86_64-0:5.14.0-70.144.1.rt21.216.el9_0.x86_64 as a component of Red Hat Enterprise Linux NFV E4S (v.9.0)
  • kernel-rt-debuginfo-common-x86_64-0:5.14.0-70.144.1.rt21.216.el9_0.x86_64 as a component of Red Hat Enterprise Linux Real Time E4S (v.9.0)
  • kernel-rt-devel-0:5.14.0-70.144.1.rt21.216.el9_0.x86_64 as a component of Red Hat Enterprise Linux NFV E4S (v.9.0)
  • kernel-rt-devel-0:5.14.0-70.144.1.rt21.216.el9_0.x86_64 as a component of Red Hat Enterprise Linux Real Time E4S (v.9.0)
  • kernel-rt-kvm-0:5.14.0-70.144.1.rt21.216.el9_0.x86_64 as a component of Red Hat Enterprise Linux NFV E4S (v.9.0)
  • kernel-rt-modules-0:5.14.0-70.144.1.rt21.216.el9_0.x86_64 as a component of Red Hat Enterprise Linux NFV E4S (v.9.0)
  • kernel-rt-modules-0:5.14.0-70.144.1.rt21.216.el9_0.x86_64 as a component of Red Hat Enterprise Linux Real Time E4S (v.9.0)
  • +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: To mitigate this issue, prevent module sch_hfsc 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 the sch_cbs module from being loaded. Please see https://access.redhat.com/solutions/41278 for how information on how to blacklist a kernel module to prevent it from loading automatically.

🔗 References (11)