{
  "schema_version": "1.7.0",
  "id": "RHSA-2026:57254",
  "related": [],
  "upstream": [
    "CVE-2024-56602",
    "CVE-2026-46120",
    "CVE-2026-52991",
    "CVE-2026-53189",
    "CVE-2026-63887",
    "CVE-2026-63888",
    "CVE-2026-64048",
    "CVE-2026-64379",
    "CVE-2026-68388"
  ],
  "published": "2026-08-20T10:20:11Z",
  "modified": "2026-08-20T10:20:11Z",
  "summary": "Red Hat Security Advisory: kernel-rt security, bug fix, and enhancement update",
  "severity": [
    {
      "type": "CVSS_V3",
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H"
    }
  ],
  "affected": [
    {
      "package": {
        "name": "kernel-rt",
        "ecosystem": "Red Hat:enterprise_linux:8::nfv",
        "purl": "pkg:rpm/redhat/kernel-rt"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0:4.18.0-553.157.1.rt7.498.el8_10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "name": "kernel-rt-core",
        "ecosystem": "Red Hat:enterprise_linux:8::nfv",
        "purl": "pkg:rpm/redhat/kernel-rt-core"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0:4.18.0-553.157.1.rt7.498.el8_10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "name": "kernel-rt-debug",
        "ecosystem": "Red Hat:enterprise_linux:8::nfv",
        "purl": "pkg:rpm/redhat/kernel-rt-debug"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0:4.18.0-553.157.1.rt7.498.el8_10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "name": "kernel-rt-debug-core",
        "ecosystem": "Red Hat:enterprise_linux:8::nfv",
        "purl": "pkg:rpm/redhat/kernel-rt-debug-core"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0:4.18.0-553.157.1.rt7.498.el8_10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "name": "kernel-rt-debug-debuginfo",
        "ecosystem": "Red Hat:enterprise_linux:8::nfv",
        "purl": "pkg:rpm/redhat/kernel-rt-debug-debuginfo"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0:4.18.0-553.157.1.rt7.498.el8_10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "name": "kernel-rt-debug-devel",
        "ecosystem": "Red Hat:enterprise_linux:8::nfv",
        "purl": "pkg:rpm/redhat/kernel-rt-debug-devel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0:4.18.0-553.157.1.rt7.498.el8_10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "name": "kernel-rt-debug-kvm",
        "ecosystem": "Red Hat:enterprise_linux:8::nfv",
        "purl": "pkg:rpm/redhat/kernel-rt-debug-kvm"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0:4.18.0-553.157.1.rt7.498.el8_10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "name": "kernel-rt-debug-modules",
        "ecosystem": "Red Hat:enterprise_linux:8::nfv",
        "purl": "pkg:rpm/redhat/kernel-rt-debug-modules"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0:4.18.0-553.157.1.rt7.498.el8_10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "name": "kernel-rt-debug-modules-extra",
        "ecosystem": "Red Hat:enterprise_linux:8::nfv",
        "purl": "pkg:rpm/redhat/kernel-rt-debug-modules-extra"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0:4.18.0-553.157.1.rt7.498.el8_10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "name": "kernel-rt-debuginfo",
        "ecosystem": "Red Hat:enterprise_linux:8::nfv",
        "purl": "pkg:rpm/redhat/kernel-rt-debuginfo"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0:4.18.0-553.157.1.rt7.498.el8_10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "name": "kernel-rt-debuginfo-common-x86_64",
        "ecosystem": "Red Hat:enterprise_linux:8::nfv",
        "purl": "pkg:rpm/redhat/kernel-rt-debuginfo-common-x86_64"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0:4.18.0-553.157.1.rt7.498.el8_10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "name": "kernel-rt-devel",
        "ecosystem": "Red Hat:enterprise_linux:8::nfv",
        "purl": "pkg:rpm/redhat/kernel-rt-devel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0:4.18.0-553.157.1.rt7.498.el8_10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "name": "kernel-rt-kvm",
        "ecosystem": "Red Hat:enterprise_linux:8::nfv",
        "purl": "pkg:rpm/redhat/kernel-rt-kvm"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0:4.18.0-553.157.1.rt7.498.el8_10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "name": "kernel-rt-modules",
        "ecosystem": "Red Hat:enterprise_linux:8::nfv",
        "purl": "pkg:rpm/redhat/kernel-rt-modules"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0:4.18.0-553.157.1.rt7.498.el8_10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "name": "kernel-rt-modules-extra",
        "ecosystem": "Red Hat:enterprise_linux:8::nfv",
        "purl": "pkg:rpm/redhat/kernel-rt-modules-extra"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0:4.18.0-553.157.1.rt7.498.el8_10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "name": "kernel-rt",
        "ecosystem": "Red Hat:enterprise_linux:8::realtime",
        "purl": "pkg:rpm/redhat/kernel-rt"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0:4.18.0-553.157.1.rt7.498.el8_10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "name": "kernel-rt-core",
        "ecosystem": "Red Hat:enterprise_linux:8::realtime",
        "purl": "pkg:rpm/redhat/kernel-rt-core"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0:4.18.0-553.157.1.rt7.498.el8_10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "name": "kernel-rt-debug",
        "ecosystem": "Red Hat:enterprise_linux:8::realtime",
        "purl": "pkg:rpm/redhat/kernel-rt-debug"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0:4.18.0-553.157.1.rt7.498.el8_10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "name": "kernel-rt-debug-core",
        "ecosystem": "Red Hat:enterprise_linux:8::realtime",
        "purl": "pkg:rpm/redhat/kernel-rt-debug-core"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0:4.18.0-553.157.1.rt7.498.el8_10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "name": "kernel-rt-debug-debuginfo",
        "ecosystem": "Red Hat:enterprise_linux:8::realtime",
        "purl": "pkg:rpm/redhat/kernel-rt-debug-debuginfo"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0:4.18.0-553.157.1.rt7.498.el8_10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "name": "kernel-rt-debug-devel",
        "ecosystem": "Red Hat:enterprise_linux:8::realtime",
        "purl": "pkg:rpm/redhat/kernel-rt-debug-devel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0:4.18.0-553.157.1.rt7.498.el8_10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "name": "kernel-rt-debug-modules",
        "ecosystem": "Red Hat:enterprise_linux:8::realtime",
        "purl": "pkg:rpm/redhat/kernel-rt-debug-modules"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0:4.18.0-553.157.1.rt7.498.el8_10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "name": "kernel-rt-debug-modules-extra",
        "ecosystem": "Red Hat:enterprise_linux:8::realtime",
        "purl": "pkg:rpm/redhat/kernel-rt-debug-modules-extra"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0:4.18.0-553.157.1.rt7.498.el8_10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "name": "kernel-rt-debuginfo",
        "ecosystem": "Red Hat:enterprise_linux:8::realtime",
        "purl": "pkg:rpm/redhat/kernel-rt-debuginfo"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0:4.18.0-553.157.1.rt7.498.el8_10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "name": "kernel-rt-debuginfo-common-x86_64",
        "ecosystem": "Red Hat:enterprise_linux:8::realtime",
        "purl": "pkg:rpm/redhat/kernel-rt-debuginfo-common-x86_64"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0:4.18.0-553.157.1.rt7.498.el8_10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "name": "kernel-rt-devel",
        "ecosystem": "Red Hat:enterprise_linux:8::realtime",
        "purl": "pkg:rpm/redhat/kernel-rt-devel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0:4.18.0-553.157.1.rt7.498.el8_10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "name": "kernel-rt-modules",
        "ecosystem": "Red Hat:enterprise_linux:8::realtime",
        "purl": "pkg:rpm/redhat/kernel-rt-modules"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0:4.18.0-553.157.1.rt7.498.el8_10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "name": "kernel-rt-modules-extra",
        "ecosystem": "Red Hat:enterprise_linux:8::realtime",
        "purl": "pkg:rpm/redhat/kernel-rt-modules-extra"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0:4.18.0-553.157.1.rt7.498.el8_10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:57254"
    },
    {
      "type": "ARTICLE",
      "url": "https://access.redhat.com/security/updates/classification/#important"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2334501"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482614"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492403"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492788"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502443"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502447"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502589"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2507135"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2513470"
    },
    {
      "type": "ADVISORY",
      "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_57254.json"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2024-56602"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2024-56602"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-56602"
    },
    {
      "type": "ARTICLE",
      "url": "https://lore.kernel.org/linux-cve-announce/2024122703-CVE-2024-56602-d030@gregkh/T"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-46120"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-46120"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46120"
    },
    {
      "type": "ARTICLE",
      "url": "https://lore.kernel.org/linux-cve-announce/2026052815-CVE-2026-46120-1a01@gregkh/T"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-52991"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-52991"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-52991"
    },
    {
      "type": "ARTICLE",
      "url": "https://lore.kernel.org/linux-cve-announce/2026062444-CVE-2026-52991-18fe@gregkh/T"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-53189"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-53189"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53189"
    },
    {
      "type": "ARTICLE",
      "url": "https://lore.kernel.org/linux-cve-announce/2026062557-CVE-2026-53189-1b4a@gregkh/T"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-63887"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-63887"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-63887"
    },
    {
      "type": "ARTICLE",
      "url": "https://lore.kernel.org/linux-cve-announce/2026071940-CVE-2026-63887-cf4b@gregkh/T"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-63888"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-63888"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-63888"
    },
    {
      "type": "ARTICLE",
      "url": "https://lore.kernel.org/linux-cve-announce/2026071940-CVE-2026-63888-a5d6@gregkh/T"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-64048"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-64048"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64048"
    },
    {
      "type": "ARTICLE",
      "url": "https://lore.kernel.org/linux-cve-announce/2026071907-CVE-2026-64048-a8e3@gregkh/T"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-64379"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-64379"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64379"
    },
    {
      "type": "ARTICLE",
      "url": "https://lore.kernel.org/linux-cve-announce/2026072525-CVE-2026-64379-242b@gregkh/T"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-68388"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-68388"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-68388"
    },
    {
      "type": "ARTICLE",
      "url": "https://lore.kernel.org/linux-cve-announce/2026081046-CVE-2026-68388-0434@gregkh/T"
    }
  ]
}