{"id":"RHSA-2026:66324","summary":"Red Hat Security Advisory: kernel-rt security, bug fix, and enhancement update","modified":"2026-09-10T10:31:06.315933487Z","published":"2026-09-10T10:17:16Z","upstream":["CVE-2025-68745","CVE-2026-46149","CVE-2026-52917","CVE-2026-52942","CVE-2026-52986","CVE-2026-53091","CVE-2026-53246","CVE-2026-63801","CVE-2026-63971","CVE-2026-64015","CVE-2026-64113","CVE-2026-68117","CVE-2026-68300","CVE-2026-68315","CVE-2026-68376"],"references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:66324"},{"type":"ARTICLE","url":"https://access.redhat.com/security/updates/classification/#important"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2425039"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2482566"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2492091"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2492115"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2492270"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2492397"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2492771"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2502254"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2502331"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2502380"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2502541"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2513253"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2513397"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2513408"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2513474"},{"type":"ADVISORY","url":"https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_66324.json"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2025-68745"},{"type":"ADVISORY","url":"https://www.cve.org/CVERecord?id=CVE-2025-68745"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-68745"},{"type":"ARTICLE","url":"https://lore.kernel.org/linux-cve-announce/2025122416-CVE-2025-68745-69b5@gregkh/T"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-46149"},{"type":"ADVISORY","url":"https://www.cve.org/CVERecord?id=CVE-2026-46149"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46149"},{"type":"ARTICLE","url":"https://lore.kernel.org/linux-cve-announce/2026052822-CVE-2026-46149-ad2e@gregkh/T"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-52917"},{"type":"ADVISORY","url":"https://www.cve.org/CVERecord?id=CVE-2026-52917"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-52917"},{"type":"ARTICLE","url":"https://lore.kernel.org/linux-cve-announce/2026062429-CVE-2026-52917-d3b0@gregkh/T"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-52942"},{"type":"ADVISORY","url":"https://www.cve.org/CVERecord?id=CVE-2026-52942"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-52942"},{"type":"ARTICLE","url":"https://lore.kernel.org/linux-cve-announce/2026062435-CVE-2026-52942-2530@gregkh/T"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-52986"},{"type":"ADVISORY","url":"https://www.cve.org/CVERecord?id=CVE-2026-52986"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-52986"},{"type":"ARTICLE","url":"https://lore.kernel.org/linux-cve-announce/2026062443-CVE-2026-52986-b7fa@gregkh/T"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-53091"},{"type":"ADVISORY","url":"https://www.cve.org/CVERecord?id=CVE-2026-53091"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53091"},{"type":"ARTICLE","url":"https://lore.kernel.org/linux-cve-announce/2026062409-CVE-2026-53091-cb58@gregkh/T"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-53246"},{"type":"ADVISORY","url":"https://www.cve.org/CVERecord?id=CVE-2026-53246"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53246"},{"type":"ARTICLE","url":"https://lore.kernel.org/linux-cve-announce/2026062512-CVE-2026-53246-e748@gregkh/T"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-63801"},{"type":"ADVISORY","url":"https://www.cve.org/CVERecord?id=CVE-2026-63801"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-63801"},{"type":"ARTICLE","url":"https://lore.kernel.org/linux-cve-announce/2026071901-CVE-2026-63801-f5e2@gregkh/T"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-63971"},{"type":"ADVISORY","url":"https://www.cve.org/CVERecord?id=CVE-2026-63971"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-63971"},{"type":"ARTICLE","url":"https://lore.kernel.org/linux-cve-announce/2026071959-CVE-2026-63971-dd46@gregkh/T"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-64015"},{"type":"ADVISORY","url":"https://www.cve.org/CVERecord?id=CVE-2026-64015"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64015"},{"type":"ARTICLE","url":"https://lore.kernel.org/linux-cve-announce/2026071957-CVE-2026-64015-19c9@gregkh/T"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-64113"},{"type":"ADVISORY","url":"https://www.cve.org/CVERecord?id=CVE-2026-64113"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64113"},{"type":"ARTICLE","url":"https://lore.kernel.org/linux-cve-announce/2026071922-CVE-2026-64113-87d9@gregkh/T"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-68117"},{"type":"ADVISORY","url":"https://www.cve.org/CVERecord?id=CVE-2026-68117"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-68117"},{"type":"ARTICLE","url":"https://lore.kernel.org/linux-cve-announce/2026081055-CVE-2026-68117-dd27@gregkh/T"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-68300"},{"type":"ADVISORY","url":"https://www.cve.org/CVERecord?id=CVE-2026-68300"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-68300"},{"type":"ARTICLE","url":"https://lore.kernel.org/linux-cve-announce/2026081029-CVE-2026-68300-ab03@gregkh/T"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-68315"},{"type":"ADVISORY","url":"https://www.cve.org/CVERecord?id=CVE-2026-68315"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-68315"},{"type":"ARTICLE","url":"https://lore.kernel.org/linux-cve-announce/2026081032-CVE-2026-68315-b0e7@gregkh/T"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-68376"},{"type":"ADVISORY","url":"https://www.cve.org/CVERecord?id=CVE-2026-68376"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-68376"},{"type":"ARTICLE","url":"https://lore.kernel.org/linux-cve-announce/2026081043-CVE-2026-68376-5dfa@gregkh/T"}],"affected":[{"package":{"name":"kernel-rt","ecosystem":"Red Hat:enterprise_linux:8::nfv","purl":"pkg:rpm/redhat/kernel-rt"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:4.18.0-553.162.1.rt7.503.el8_10"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:66324.json"}},{"package":{"name":"kernel-rt-core","ecosystem":"Red Hat:enterprise_linux:8::nfv","purl":"pkg:rpm/redhat/kernel-rt-core"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:4.18.0-553.162.1.rt7.503.el8_10"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:66324.json"}},{"package":{"name":"kernel-rt-debug","ecosystem":"Red Hat:enterprise_linux:8::nfv","purl":"pkg:rpm/redhat/kernel-rt-debug"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:4.18.0-553.162.1.rt7.503.el8_10"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:66324.json"}},{"package":{"name":"kernel-rt-debug-core","ecosystem":"Red Hat:enterprise_linux:8::nfv","purl":"pkg:rpm/redhat/kernel-rt-debug-core"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:4.18.0-553.162.1.rt7.503.el8_10"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:66324.json"}},{"package":{"name":"kernel-rt-debug-debuginfo","ecosystem":"Red Hat:enterprise_linux:8::nfv","purl":"pkg:rpm/redhat/kernel-rt-debug-debuginfo"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:4.18.0-553.162.1.rt7.503.el8_10"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:66324.json"}},{"package":{"name":"kernel-rt-debug-devel","ecosystem":"Red Hat:enterprise_linux:8::nfv","purl":"pkg:rpm/redhat/kernel-rt-debug-devel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:4.18.0-553.162.1.rt7.503.el8_10"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:66324.json"}},{"package":{"name":"kernel-rt-debug-kvm","ecosystem":"Red Hat:enterprise_linux:8::nfv","purl":"pkg:rpm/redhat/kernel-rt-debug-kvm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:4.18.0-553.162.1.rt7.503.el8_10"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:66324.json"}},{"package":{"name":"kernel-rt-debug-modules","ecosystem":"Red Hat:enterprise_linux:8::nfv","purl":"pkg:rpm/redhat/kernel-rt-debug-modules"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:4.18.0-553.162.1.rt7.503.el8_10"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:66324.json"}},{"package":{"name":"kernel-rt-debug-modules-extra","ecosystem":"Red Hat:enterprise_linux:8::nfv","purl":"pkg:rpm/redhat/kernel-rt-debug-modules-extra"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:4.18.0-553.162.1.rt7.503.el8_10"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:66324.json"}},{"package":{"name":"kernel-rt-debuginfo","ecosystem":"Red Hat:enterprise_linux:8::nfv","purl":"pkg:rpm/redhat/kernel-rt-debuginfo"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:4.18.0-553.162.1.rt7.503.el8_10"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:66324.json"}},{"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":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:4.18.0-553.162.1.rt7.503.el8_10"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:66324.json"}},{"package":{"name":"kernel-rt-devel","ecosystem":"Red Hat:enterprise_linux:8::nfv","purl":"pkg:rpm/redhat/kernel-rt-devel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:4.18.0-553.162.1.rt7.503.el8_10"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:66324.json"}},{"package":{"name":"kernel-rt-kvm","ecosystem":"Red Hat:enterprise_linux:8::nfv","purl":"pkg:rpm/redhat/kernel-rt-kvm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:4.18.0-553.162.1.rt7.503.el8_10"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:66324.json"}},{"package":{"name":"kernel-rt-modules","ecosystem":"Red Hat:enterprise_linux:8::nfv","purl":"pkg:rpm/redhat/kernel-rt-modules"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:4.18.0-553.162.1.rt7.503.el8_10"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:66324.json"}},{"package":{"name":"kernel-rt-modules-extra","ecosystem":"Red Hat:enterprise_linux:8::nfv","purl":"pkg:rpm/redhat/kernel-rt-modules-extra"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:4.18.0-553.162.1.rt7.503.el8_10"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:66324.json"}},{"package":{"name":"kernel-rt","ecosystem":"Red Hat:enterprise_linux:8::realtime","purl":"pkg:rpm/redhat/kernel-rt"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:4.18.0-553.162.1.rt7.503.el8_10"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:66324.json"}},{"package":{"name":"kernel-rt-core","ecosystem":"Red Hat:enterprise_linux:8::realtime","purl":"pkg:rpm/redhat/kernel-rt-core"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:4.18.0-553.162.1.rt7.503.el8_10"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:66324.json"}},{"package":{"name":"kernel-rt-debug","ecosystem":"Red Hat:enterprise_linux:8::realtime","purl":"pkg:rpm/redhat/kernel-rt-debug"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:4.18.0-553.162.1.rt7.503.el8_10"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:66324.json"}},{"package":{"name":"kernel-rt-debug-core","ecosystem":"Red Hat:enterprise_linux:8::realtime","purl":"pkg:rpm/redhat/kernel-rt-debug-core"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:4.18.0-553.162.1.rt7.503.el8_10"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:66324.json"}},{"package":{"name":"kernel-rt-debug-debuginfo","ecosystem":"Red Hat:enterprise_linux:8::realtime","purl":"pkg:rpm/redhat/kernel-rt-debug-debuginfo"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:4.18.0-553.162.1.rt7.503.el8_10"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:66324.json"}},{"package":{"name":"kernel-rt-debug-devel","ecosystem":"Red Hat:enterprise_linux:8::realtime","purl":"pkg:rpm/redhat/kernel-rt-debug-devel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:4.18.0-553.162.1.rt7.503.el8_10"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:66324.json"}},{"package":{"name":"kernel-rt-debug-modules","ecosystem":"Red Hat:enterprise_linux:8::realtime","purl":"pkg:rpm/redhat/kernel-rt-debug-modules"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:4.18.0-553.162.1.rt7.503.el8_10"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:66324.json"}},{"package":{"name":"kernel-rt-debug-modules-extra","ecosystem":"Red Hat:enterprise_linux:8::realtime","purl":"pkg:rpm/redhat/kernel-rt-debug-modules-extra"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:4.18.0-553.162.1.rt7.503.el8_10"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:66324.json"}},{"package":{"name":"kernel-rt-debuginfo","ecosystem":"Red Hat:enterprise_linux:8::realtime","purl":"pkg:rpm/redhat/kernel-rt-debuginfo"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:4.18.0-553.162.1.rt7.503.el8_10"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:66324.json"}},{"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":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:4.18.0-553.162.1.rt7.503.el8_10"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:66324.json"}},{"package":{"name":"kernel-rt-devel","ecosystem":"Red Hat:enterprise_linux:8::realtime","purl":"pkg:rpm/redhat/kernel-rt-devel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:4.18.0-553.162.1.rt7.503.el8_10"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:66324.json"}},{"package":{"name":"kernel-rt-modules","ecosystem":"Red Hat:enterprise_linux:8::realtime","purl":"pkg:rpm/redhat/kernel-rt-modules"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:4.18.0-553.162.1.rt7.503.el8_10"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:66324.json"}},{"package":{"name":"kernel-rt-modules-extra","ecosystem":"Red Hat:enterprise_linux:8::realtime","purl":"pkg:rpm/redhat/kernel-rt-modules-extra"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:4.18.0-553.162.1.rt7.503.el8_10"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:66324.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}