rlsa-2026:49213
Vulnerability from osv_rocky
Published
2026-08-04 12:01
Modified
2026-08-14 18:09
Summary
Important: kernel-rt security update
Details

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

Security Fix(es):

  • kernel: rtnetlink: add missing netlink_ns_capable() check for peer netns (CVE-2026-31692)

  • kernel: netfilter: ctnetlink: ensure safe access to master conntrack (CVE-2026-43116)

  • kernel: fanotify: fix false positive on permission events (CVE-2026-46150)

  • kernel: net: sched: UAF via missing handler for TC_ACT_CONSUMED in tcf_qevent_handle ()

  • kernel: net/sched: cls_api: Handle TC_ACT_CONSUMED in tcf_qevent_handle (CVE-2026-64530)

For 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.

Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Credits
Rocky Enterprise Software Foundation
Red Hat
References
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "Rocky Linux:8",
        "name": "kernel-rt",
        "purl": "pkg:rpm/rocky-linux/kernel-rt?distro=rocky-linux-8\u0026epoch=0"
      },
      "ranges": [
        {
          "database_specific": {
            "yum_repository": "NFV"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0:4.18.0-553.150.1.rt7.491.el8_10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "credits": [
    {
      "name": "Rocky Enterprise Software Foundation"
    },
    {
      "name": "Red Hat"
    }
  ],
  "database_specific": {
    "license": "CC-BY-4.0",
    "license_url": "https://creativecommons.org/licenses/by/4.0/",
    "source_advisory": "RHSA-2026:49213"
  },
  "details": "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: rtnetlink: add missing netlink_ns_capable() check for peer netns (CVE-2026-31692)\n\n* kernel: netfilter: ctnetlink: ensure safe access to master conntrack (CVE-2026-43116)\n\n* kernel: fanotify: fix false positive on permission events (CVE-2026-46150)\n\n* kernel: net: sched: UAF via missing handler for TC_ACT_CONSUMED in tcf_qevent_handle ()\n\n* kernel: net/sched: cls_api: Handle TC_ACT_CONSUMED in tcf_qevent_handle (CVE-2026-64530)\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.",
  "id": "RLSA-2026:49213",
  "modified": "2026-08-14T18:09:02.400140Z",
  "published": "2026-08-04T12:01:45.048076Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://errata.rockylinux.org/RLSA-2026:49213"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2464093"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467005"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482612"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2504052"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:49213"
    }
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Important: kernel-rt security update",
  "upstream": [
    "CVE-2026-31692",
    "CVE-2026-43116",
    "CVE-2026-46150",
    "CVE-2026-64530"
  ]
}



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