RHSA-2026:4011MediumCVSS 7.8

Red Hat Security Advisory: kernel security update

Published
March 9, 2026
Last Modified
July 30, 2026

🔗 CVE IDs covered (7)

CVE-2024-47727 →CVE-2024-56603 →CVE-2025-22056 →CVE-2025-38024 →CVE-2025-38129 →CVE-2025-38141 →CVE-2025-38703 →

📋 Description

CVE-2024-47727 — kernel: x86/tdx: Fix "in-kernel MMIO" check CVE-2024-56603 — kernel: net: af_can: do not leave a dangling sk pointer in can_create() CVE-2025-22056 — kernel: netfilter: nft_tunnel: fix geneve_opt type confusion addition CVE-2025-38024 — kernel: Linux kernel: RDMA/rxe use-after-free vulnerability leading to potential arbitrary code execution CVE-2025-38129 — kernel: Linux kernel: Use-after-free vulnerability in page_pool_recycle_in_ring can lead to arbitrary code execution CVE-2025-38141 — kernel: Linux kernel: Use-after-free in device mapper due to race condition in zone reporting CVE-2025-38703 — kernel: drm/xe: Make dma-fences compliant with the safe access rules

🎯 Affected products200

  • Red Hat CodeReady Linux Builder EUS (v.9.6)
  • Red Hat Enterprise Linux AppStream EUS (v.9.6)
  • Red Hat Enterprise Linux BaseOS EUS (v.9.6)
  • Red Hat Enterprise Linux Real Time EUS (v.9.6)
  • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.6)
  • kernel-0:5.14.0-570.96.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.6)
  • kernel-0:5.14.0-570.96.1.el9_6.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.6)
  • kernel-0:5.14.0-570.96.1.el9_6.s390x as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.6)
  • kernel-0:5.14.0-570.96.1.el9_6.src as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.6)
  • kernel-0:5.14.0-570.96.1.el9_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.6)
  • kernel-64k-0:5.14.0-570.96.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.6)
  • kernel-64k-core-0:5.14.0-570.96.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.6)
  • kernel-64k-debug-0:5.14.0-570.96.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.6)
  • kernel-64k-debug-core-0:5.14.0-570.96.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.6)
  • kernel-64k-debug-debuginfo-0:5.14.0-570.96.1.el9_6.aarch64 as a component of Red Hat CodeReady Linux Builder EUS (v.9.6)
  • kernel-64k-debug-debuginfo-0:5.14.0-570.96.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
  • kernel-64k-debug-debuginfo-0:5.14.0-570.96.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.6)
  • kernel-64k-debug-debuginfo-0:5.14.0-570.96.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux Real Time EUS (v.9.6)
  • kernel-64k-debug-devel-0:5.14.0-570.96.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
  • kernel-64k-debug-devel-matched-0:5.14.0-570.96.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
  • kernel-64k-debug-modules-0:5.14.0-570.96.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.6)
  • kernel-64k-debug-modules-core-0:5.14.0-570.96.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.6)
  • kernel-64k-debug-modules-extra-0:5.14.0-570.96.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.6)
  • kernel-64k-debuginfo-0:5.14.0-570.96.1.el9_6.aarch64 as a component of Red Hat CodeReady Linux Builder EUS (v.9.6)
  • kernel-64k-debuginfo-0:5.14.0-570.96.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
  • kernel-64k-debuginfo-0:5.14.0-570.96.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.6)
  • kernel-64k-debuginfo-0:5.14.0-570.96.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux Real Time EUS (v.9.6)
  • kernel-64k-devel-0:5.14.0-570.96.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
  • kernel-64k-devel-matched-0:5.14.0-570.96.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
  • kernel-64k-modules-0:5.14.0-570.96.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.6)
  • +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: 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: 1. This flaw can be mitigated by preventing the affected netfilter module with the name nft_tunnel 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 the `rxe` kernel module from loading. This can be achieved by creating a blacklist rule. 1. Create a file `/etc/modprobe.d/blacklist-rxe.conf` with the following content: ``` blacklist rxe install rxe /bin/true ``` 2. Rebuild the initial ramdisk: ```bash dracut -f -v ``` 3. Reboot the system for the changes to take effect. Warning: Blacklisting the `rxe` module may impact functionality that relies on Soft RoCE.

🔗 References (10)