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security advisorymoderatekernel-rt

Rocky Linux 9 RLSB-2027-4823 kernel-rt Patch Advisory - Medium Risk Alert

Moderate: kernel-rt security update. {"type": "TYPE_SECURITY", "shortCode": "RL", "name": "RLSA-2026:3964", "synopsis": "Moderate: kernel-rt security update", "severity": "SEVERITY_MODERATE", "topic": "An update is available for kernel-rt.\nThis update affects Rocky Linux 8.\nA Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list", "description": "The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.\n\nSecurity Fix(es):\n\n* kernel: ipv6: BUG() in pskb_expand_head() as part of calipso_skbuff_setattr() (CVE-2025-71085)\n\n* kernel: macvlan: fix possible UAF in macvlan_forward_source() (CVE-2026-23001)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.", "solution": null, "affectedProducts": ["Rocky Linux 8"], "fixes": [{"ticket": "2429026", "sourceBy": "Red Hat", "sourceLink": "https://bugzilla.redhat.com/show_bug.cgi?id=2429026", "description": ""}, {"ticket": "2432664", "sourceBy": "Red Hat", "sourceLink": "https://bugzilla.redhat.com/show_bug.cgi?id=2432664", "description": ""}], "cves": [{"name": "CVE-2025-71085", "sourceBy": "MITRE", "sourceLink": "https://www.cve.org/CVERecord?id=CVE-2025-71085", "cvss3ScoringVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "cvss3BaseScore": "7.5", "cwe": "CWE-190"}, {"name": "CVE-2026-23001", "sourceBy": "MITRE", "sourceLink": "https://www.cve.org/CVERecord?id=CVE-2026-23001", "cvss3ScoringVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "cvss3BaseScore": "7.8", "cwe": "CWE-416"}], "references": [], "publishedAt": "2026-03-26T12:01:40.953151Z", "rpms": {"Rocky Linux 8": {"nvras": ["kernel-rt-0:4.18.0-553.111.1.rt7.452.el8_10.src.rpm", "kernel-rt-0:4.18.0-553.111.1.rt7.452.el8_10.x86_64.rpm","kernel-rt-core-0:4.18.0-553.111.1.rt7.452.el8_10.x86_64.rpm", "kernel-rt-debug-0:4.18.0-553.111.1.rt7.452.el8_10.x86_64.rpm", "kernel-rt-debug-core-0:4.18.0-553.111.1.rt7.452.el8_10.x86_64.rpm", "kernel-rt-debug-debuginfo-0:4.18.0-553.111.1.rt7.452.el8_10.x86_64.rpm", "kernel-rt-debug-devel-0:4.18.0-553.111.1.rt7.452.el8_10.x86_64.rpm", "kernel-rt-debuginfo-0:4.18.0-553.111.1.rt7.452.el8_10.x86_64.rpm", "kernel-rt-debuginfo-common-x86_64-0:4.18.0-553.111.1.rt7.452.el8_10.x86_64.rpm", "kernel-rt-debug-kvm-0:4.18.0-553.111.1.rt7.452.el8_10.x86_64.rpm", "kernel-rt-debug-modules-0:4.18.0-553.111.1.rt7.452.el8_10.x86_64.rpm", "kernel-rt-debug-modules-extra-0:4.18.0-553.111.1.rt7.452.el8_10.x86_64.rpm", "kernel-rt-devel-0:4.18.0-553.111.1.rt7.452.el8_10.x86_64.rpm", "kernel-rt-kvm-0:4.18.0-553.111.1.rt7.452.el8_10.x86_64.rpm", "kernel-rt-modules-0:4.18.0-553.111.1.rt7.452.el8_10.x86_64.rpm", "kernel-rt-modules-extra-0:4.18.0-553.111.1.rt7.452.el8_10.x86_64.rpm"]}}, "rebootSuggested": false, "buildReferences": []}. Moderate security update for kernel-rt in Rocky Linux addresses multiple issues including ipv6 and macvlan fixes.. kernel-rt security update, Rocky Linux kernel fix, moderate security patch. . LinuxSecurity.com Team

Mar 26, 2026 Rocky Linux