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OpenAdvisories
High RHSA-2025:18298 3 CVEs

Red Hat Security Advisory: kernel-rt security update

Published Oct 21, 2025 · Updated Oct 16, 2026

Ecosystem: Red Hat

Fixed packages 28

ReleasePackageFixed in
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt 0:4.18.0-553.80.1.rt7.421.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-core 0:4.18.0-553.80.1.rt7.421.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-debug 0:4.18.0-553.80.1.rt7.421.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-debug-core 0:4.18.0-553.80.1.rt7.421.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-debug-debuginfo 0:4.18.0-553.80.1.rt7.421.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-debug-devel 0:4.18.0-553.80.1.rt7.421.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-debug-kvm 0:4.18.0-553.80.1.rt7.421.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-debug-modules 0:4.18.0-553.80.1.rt7.421.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-debug-modules-extra 0:4.18.0-553.80.1.rt7.421.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-debuginfo 0:4.18.0-553.80.1.rt7.421.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-debuginfo-common-x86_64 0:4.18.0-553.80.1.rt7.421.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-devel 0:4.18.0-553.80.1.rt7.421.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-kvm 0:4.18.0-553.80.1.rt7.421.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-modules 0:4.18.0-553.80.1.rt7.421.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-modules-extra 0:4.18.0-553.80.1.rt7.421.el8_10
Red Hat · RHEL 8 enterprise_linux:8::realtime kernel-rt 0:4.18.0-553.80.1.rt7.421.el8_10
Red Hat · RHEL 8 enterprise_linux:8::realtime kernel-rt-core 0:4.18.0-553.80.1.rt7.421.el8_10
Red Hat · RHEL 8 enterprise_linux:8::realtime kernel-rt-debug 0:4.18.0-553.80.1.rt7.421.el8_10
Red Hat · RHEL 8 enterprise_linux:8::realtime kernel-rt-debug-core 0:4.18.0-553.80.1.rt7.421.el8_10
Red Hat · RHEL 8 enterprise_linux:8::realtime kernel-rt-debug-debuginfo 0:4.18.0-553.80.1.rt7.421.el8_10
Red Hat · RHEL 8 enterprise_linux:8::realtime kernel-rt-debug-devel 0:4.18.0-553.80.1.rt7.421.el8_10
Red Hat · RHEL 8 enterprise_linux:8::realtime kernel-rt-debug-modules 0:4.18.0-553.80.1.rt7.421.el8_10
Red Hat · RHEL 8 enterprise_linux:8::realtime kernel-rt-debug-modules-extra 0:4.18.0-553.80.1.rt7.421.el8_10
Red Hat · RHEL 8 enterprise_linux:8::realtime kernel-rt-debuginfo 0:4.18.0-553.80.1.rt7.421.el8_10
Red Hat · RHEL 8 enterprise_linux:8::realtime kernel-rt-debuginfo-common-x86_64 0:4.18.0-553.80.1.rt7.421.el8_10
Red Hat · RHEL 8 enterprise_linux:8::realtime kernel-rt-devel 0:4.18.0-553.80.1.rt7.421.el8_10
Red Hat · RHEL 8 enterprise_linux:8::realtime kernel-rt-modules 0:4.18.0-553.80.1.rt7.421.el8_10
Red Hat · RHEL 8 enterprise_linux:8::realtime kernel-rt-modules-extra 0:4.18.0-553.80.1.rt7.421.el8_10

Vulnerabilities 3

  • High 7.8
    CVE-2023-53373

    crypto: seqiv - Handle EBUSY correctly

    In the Linux kernel, the following vulnerability has been resolved: crypto: seqiv - Handle EBUSY correctly As it is seqiv only handles the special return value of EINPROGERSS, which means that in all other cases it will free data related to the request. Howev…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  • Unscored —
    CVE-2025-39751 Rejected

    This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.

    linux-raspi2 linux-hwe linux-azure linux-riscv Ubuntu
  • Unscored —
    CVE-2025-39757

    ALSA: usb-audio: Validate UAC3 cluster segment descriptors

    In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Validate UAC3 cluster segment descriptors UAC3 class segment descriptors need to be verified whether their sizes match with the declared lengths and whether they fit with the…

    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=2394615
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2394624
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2396379
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2025/rhsa-2025_18298.json
  • report
    https://access.redhat.com/security/cve/CVE-2023-53373
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2023-53373
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2023-53373
  • article
    https://lore.kernel.org/linux-cve-announce/2025091855-CVE-2023-53373-087e@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2025-39751
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2025-39751
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2025-39751
  • article
    https://lore.kernel.org/linux-cve-announce/2025091142-CVE-2025-39751-c340@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2025-39757
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2025-39757
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2025-39757
  • article
    https://lore.kernel.org/linux-cve-announce/2025091144-CVE-2025-39757-e212@gregkh/T