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Medium ELSA-2025-21398 1 CVE

Moderate: kernel security update (Oracle Linux 8)

Published Nov 17, 2025 · Updated Nov 17, 2025

Summary

[4.18.0-553.84.1]
- Update Oracle Linux certificates (Kevin Lyons)
- Disable signing for aarch64 (Ilya Okomin)
- Oracle Linux RHCK Module Signing Key was added to the kernel trusted keys list (olkmod_signing_key.pem) [Orabug: 29539237]
- Update x509.genkey [Orabug: 24817676]
- Conflict with shim-ia32 and shim-x64 <= 15.3-1.0.3
- Remove upstream reference during boot (Kevin Lyons) [Orabug: 34750652]
- Add new Oracle Linux Driver Signing (key 1) certificate [Orabug: 37985772]

[4.18.0-553.84.1]
- cgroup: don't put ERR_PTR() into fc->root (CKI Backport Bot) [RHEL-123775]
- vsock/virtio: Validate length in packet header before skb_put() (Jon Maloy) [RHEL-114296] {CVE-2025-39718}
- NFS: remove revoked delegation from server's delegation list (Benjamin Coddington) [RHEL-123005]

Fixed packages 20

ReleasePackageFixed in
Oracle Linux · 8 bpftool 0:4.18.0-553.84.1.el8_10
Oracle Linux · 8 kernel 0:4.18.0-553.84.1.el8_10
Oracle Linux · 8 kernel-abi-stablelists 0:4.18.0-553.84.1.el8_10
Oracle Linux · 8 kernel-core 0:4.18.0-553.84.1.el8_10
Oracle Linux · 8 kernel-cross-headers 0:4.18.0-553.84.1.el8_10
Oracle Linux · 8 kernel-debug 0:4.18.0-553.84.1.el8_10
Oracle Linux · 8 kernel-debug-core 0:4.18.0-553.84.1.el8_10
Oracle Linux · 8 kernel-debug-devel 0:4.18.0-553.84.1.el8_10
Oracle Linux · 8 kernel-debug-modules 0:4.18.0-553.84.1.el8_10
Oracle Linux · 8 kernel-debug-modules-extra 0:4.18.0-553.84.1.el8_10
Oracle Linux · 8 kernel-devel 0:4.18.0-553.84.1.el8_10
Oracle Linux · 8 kernel-doc 0:4.18.0-553.84.1.el8_10
Oracle Linux · 8 kernel-headers 0:4.18.0-553.84.1.el8_10
Oracle Linux · 8 kernel-modules 0:4.18.0-553.84.1.el8_10
Oracle Linux · 8 kernel-modules-extra 0:4.18.0-553.84.1.el8_10
Oracle Linux · 8 kernel-tools 0:4.18.0-553.84.1.el8_10
Oracle Linux · 8 kernel-tools-libs 0:4.18.0-553.84.1.el8_10
Oracle Linux · 8 kernel-tools-libs-devel 0:4.18.0-553.84.1.el8_10
Oracle Linux · 8 perf 0:4.18.0-553.84.1.el8_10
Oracle Linux · 8 python3-perf 0:4.18.0-553.84.1.el8_10

Vulnerabilities 1

  • High 8.4

    vsock/virtio: Validate length in packet header before skb_put()

    In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: Validate length in packet header before skb_put() When receiving a vsock packet in the guest, only the virtqueue buffer size is validated prior to virtio_vsock_skb_rx_put(). Unf…