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OpenAdvisories
High RHSA-2025:21398 1 CVE

Red Hat Security Advisory: kernel security update

Published Nov 17, 2025 · Updated Jul 30, 2026

Ecosystem: Red Hat

Fixed packages 43

ReleasePackageFixed in
Red Hat · RHEL 8 enterprise_linux:8::baseos bpftool 0:4.18.0-553.84.1.el8_10
Red Hat · RHEL 8 enterprise_linux:8::baseos bpftool-debuginfo 0:4.18.0-553.84.1.el8_10
Red Hat · RHEL 8 enterprise_linux:8::baseos kernel 0:4.18.0-553.84.1.el8_10
Red Hat · RHEL 8 enterprise_linux:8::baseos kernel-abi-stablelists 0:4.18.0-553.84.1.el8_10
Red Hat · RHEL 8 enterprise_linux:8::baseos kernel-core 0:4.18.0-553.84.1.el8_10
Red Hat · RHEL 8 enterprise_linux:8::baseos kernel-debug 0:4.18.0-553.84.1.el8_10
Red Hat · RHEL 8 enterprise_linux:8::baseos kernel-debug-core 0:4.18.0-553.84.1.el8_10
Red Hat · RHEL 8 enterprise_linux:8::baseos kernel-debug-debuginfo 0:4.18.0-553.84.1.el8_10
Red Hat · RHEL 8 enterprise_linux:8::baseos kernel-debug-devel 0:4.18.0-553.84.1.el8_10
Red Hat · RHEL 8 enterprise_linux:8::baseos kernel-debug-modules 0:4.18.0-553.84.1.el8_10
Red Hat · RHEL 8 enterprise_linux:8::baseos kernel-debug-modules-extra 0:4.18.0-553.84.1.el8_10
Red Hat · RHEL 8 enterprise_linux:8::baseos kernel-debuginfo 0:4.18.0-553.84.1.el8_10
Red Hat · RHEL 8 enterprise_linux:8::baseos kernel-debuginfo-common-aarch64 0:4.18.0-553.84.1.el8_10
Red Hat · RHEL 8 enterprise_linux:8::baseos kernel-debuginfo-common-ppc64le 0:4.18.0-553.84.1.el8_10
Red Hat · RHEL 8 enterprise_linux:8::baseos kernel-debuginfo-common-s390x 0:4.18.0-553.84.1.el8_10
Red Hat · RHEL 8 enterprise_linux:8::baseos kernel-debuginfo-common-x86_64 0:4.18.0-553.84.1.el8_10
Red Hat · RHEL 8 enterprise_linux:8::baseos kernel-devel 0:4.18.0-553.84.1.el8_10
Red Hat · RHEL 8 enterprise_linux:8::baseos kernel-doc 0:4.18.0-553.84.1.el8_10
Red Hat · RHEL 8 enterprise_linux:8::baseos kernel-modules 0:4.18.0-553.84.1.el8_10
Red Hat · RHEL 8 enterprise_linux:8::baseos kernel-modules-extra 0:4.18.0-553.84.1.el8_10
Red Hat · RHEL 8 enterprise_linux:8::baseos kernel-tools 0:4.18.0-553.84.1.el8_10
Red Hat · RHEL 8 enterprise_linux:8::baseos kernel-tools-debuginfo 0:4.18.0-553.84.1.el8_10
Red Hat · RHEL 8 enterprise_linux:8::baseos kernel-tools-libs 0:4.18.0-553.84.1.el8_10
Red Hat · RHEL 8 enterprise_linux:8::baseos kernel-zfcpdump 0:4.18.0-553.84.1.el8_10
Red Hat · RHEL 8 enterprise_linux:8::baseos kernel-zfcpdump-core 0:4.18.0-553.84.1.el8_10
Red Hat · RHEL 8 enterprise_linux:8::baseos kernel-zfcpdump-debuginfo 0:4.18.0-553.84.1.el8_10
Red Hat · RHEL 8 enterprise_linux:8::baseos kernel-zfcpdump-devel 0:4.18.0-553.84.1.el8_10
Red Hat · RHEL 8 enterprise_linux:8::baseos kernel-zfcpdump-modules 0:4.18.0-553.84.1.el8_10
Red Hat · RHEL 8 enterprise_linux:8::baseos kernel-zfcpdump-modules-extra 0:4.18.0-553.84.1.el8_10
Red Hat · RHEL 8 enterprise_linux:8::baseos perf 0:4.18.0-553.84.1.el8_10
Red Hat · RHEL 8 enterprise_linux:8::baseos perf-debuginfo 0:4.18.0-553.84.1.el8_10
Red Hat · RHEL 8 enterprise_linux:8::baseos python3-perf 0:4.18.0-553.84.1.el8_10
Red Hat · RHEL 8 enterprise_linux:8::baseos python3-perf-debuginfo 0:4.18.0-553.84.1.el8_10
Red Hat · RHEL 8 enterprise_linux:8::crb bpftool-debuginfo 0:4.18.0-553.84.1.el8_10
Red Hat · RHEL 8 enterprise_linux:8::crb kernel-debug-debuginfo 0:4.18.0-553.84.1.el8_10
Red Hat · RHEL 8 enterprise_linux:8::crb kernel-debuginfo 0:4.18.0-553.84.1.el8_10
Red Hat · RHEL 8 enterprise_linux:8::crb kernel-debuginfo-common-aarch64 0:4.18.0-553.84.1.el8_10
Red Hat · RHEL 8 enterprise_linux:8::crb kernel-debuginfo-common-ppc64le 0:4.18.0-553.84.1.el8_10
Red Hat · RHEL 8 enterprise_linux:8::crb kernel-debuginfo-common-x86_64 0:4.18.0-553.84.1.el8_10
Red Hat · RHEL 8 enterprise_linux:8::crb kernel-tools-debuginfo 0:4.18.0-553.84.1.el8_10
Red Hat · RHEL 8 enterprise_linux:8::crb kernel-tools-libs-devel 0:4.18.0-553.84.1.el8_10
Red Hat · RHEL 8 enterprise_linux:8::crb perf-debuginfo 0:4.18.0-553.84.1.el8_10
Red Hat · RHEL 8 enterprise_linux:8::crb python3-perf-debuginfo 0:4.18.0-553.84.1.el8_10

Vulnerabilities 1

  • High 8.4
    CVE-2025-39718

    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…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux

References

  • article
    https://access.redhat.com/security/updates/classification/#moderate
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2393507
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2025/rhsa-2025_21398.json
  • report
    https://access.redhat.com/security/cve/CVE-2025-39718
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2025-39718
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2025-39718
  • article
    https://lore.kernel.org/linux-cve-announce/2025090551-CVE-2025-39718-2e2c@gregkh/T