RHSA-2026:14339HighCVSS 8.1

Red Hat Security Advisory: kernel security update

Published
May 6, 2026
Last Modified
September 28, 2026

🔗 CVE IDs covered (7)

CVE-2025-68741 →CVE-2026-23243 →CVE-2026-23401 →CVE-2026-31431 →CVE-2026-31532 →CVE-2026-43077 →CVE-2024-53216 →

📋 Description

CVE-2024-53216 — kernel: nfsd: release svc_expkey/svc_export with rcu_work CVE-2025-68741 — kernel: scsi: qla2xxx: Fix improper freeing of purex item CVE-2026-23243 — kernel: Linux kernel: Denial of service and memory corruption in RDMA umad CVE-2026-23401 — kernel: Linux kernel KVM: Privilege escalation or denial of service due to improper shadow page table entry handling CVE-2026-31431 — kernel: crypto: algif_aead - Revert to operating out-of-place CVE-2026-31532 — kernel: can: raw: fix ro->uniq use-after-free in raw_rcv() CVE-2026-43077 — kernel: crypto: algif_aead - Fix minimum RX size check for decryption

🎯 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-0:5.14.0-570.112.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.6)
  • kernel-0:5.14.0-570.112.1.el9_6.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.6)
  • kernel-0:5.14.0-570.112.1.el9_6.s390x as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.6)
  • kernel-0:5.14.0-570.112.1.el9_6.src as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.6)
  • kernel-0:5.14.0-570.112.1.el9_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.6)
  • kernel-64k-0:5.14.0-570.112.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.6)
  • kernel-64k-core-0:5.14.0-570.112.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.6)
  • kernel-64k-debug-0:5.14.0-570.112.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.6)
  • kernel-64k-debug-core-0:5.14.0-570.112.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.6)
  • kernel-64k-debug-debuginfo-0:5.14.0-570.112.1.el9_6.aarch64 as a component of Red Hat CodeReady Linux Builder EUS (v.9.6)
  • kernel-64k-debug-debuginfo-0:5.14.0-570.112.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
  • kernel-64k-debug-debuginfo-0:5.14.0-570.112.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.6)
  • kernel-64k-debug-debuginfo-0:5.14.0-570.112.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux Real Time EUS (v.9.6)
  • kernel-64k-debug-devel-0:5.14.0-570.112.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
  • kernel-64k-debug-devel-matched-0:5.14.0-570.112.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
  • kernel-64k-debug-modules-0:5.14.0-570.112.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.6)
  • kernel-64k-debug-modules-core-0:5.14.0-570.112.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.6)
  • kernel-64k-debug-modules-extra-0:5.14.0-570.112.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.6)
  • kernel-64k-debuginfo-0:5.14.0-570.112.1.el9_6.aarch64 as a component of Red Hat CodeReady Linux Builder EUS (v.9.6)
  • kernel-64k-debuginfo-0:5.14.0-570.112.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
  • kernel-64k-debuginfo-0:5.14.0-570.112.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.6)
  • kernel-64k-debuginfo-0:5.14.0-570.112.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux Real Time EUS (v.9.6)
  • kernel-64k-devel-0:5.14.0-570.112.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
  • kernel-64k-devel-matched-0:5.14.0-570.112.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6)
  • kernel-64k-modules-0:5.14.0-570.112.1.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: To mitigate this issue on systems that do not require NFS server capabilities, prevent the nfsd kernel module from loading by adding a configuration file to /etc/modprobe.d/: # echo "install nfsd /bin/true" > /etc/modprobe.d/nfsd.conf If the NFS server service is currently running, stop and disable it: # systemctl stop nfs-server # systemctl disable nfs-server If the nfsd module is already loaded in memory, attempt to unload it or restart the system: # modprobe -r nfsd Warning: Blacklisting nfsd disables NFS export functionality on the host, though NFS client operations remain unaffected. Unloading the module or restarting the system will disrupt active NFS exports and existing client sessions. Workaround: To mitigate this issue, prevent module ib_umad 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: See the security bulletin for a detailed mitigation procedure. Workaround: To mitigate this issue, prevent the `can` kernel module from loading if CAN functionality is not required. This can be achieved by blacklisting the module. Create a file named `/etc/modprobe.d/blacklist-can.conf` with the following content: ``` blacklist can install can /bin/true ``` After creating the file, regenerate the initramfs and reboot the system for the changes to take effect. ```bash dracut -f -v reboot ``` This mitigation may impact systems that rely on CAN interfaces for their operation.

🔗 References (9)