RLSA-2026:98100 (CVE-2026-46330)

Vulnerability from osv_rocky – Published: 2026-11-12 12:02 – Updated: 2026-11-12 12:13 – Source website
VLAI
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: Revert "net/smc: Introduce TCP ULP support" (CVE-2026-46330)

  • kernel: Linux kernel: PPP over L2TP Use-After-Free vulnerability (CVE-2026-68398)

  • kernel: openvswitch: fix GSO userspace truncation underflow (CVE-2026-68123)

  • kernel: Bluetooth: mgmt: fix UAF in pair command cancellation (CVE-2026-74510)

  • kernel: net: bridge: mcast: fix use-after-free of a master VLAN's multicast context (CVE-2026-80842)

  • kernel: ALSA: seq: midi: Serialize input teardown with event_input (CVE-2026-90207)

  • kernel: ALSA: pcm: Serialize PCM mmap with buffer reallocation to fix page UAF (CVE-2026-98116)

  • kernel: s390/boot: Avoid IPL parameter append past command line (CVE-2026-98403)

  • kernel: kernel: Denial of Service via unvalidated task in iSCSI management responses (CVE-2026-99152)

  • kernel: kernel: Denial of service via unvalidated task tag in iSCSI Reject PDU (CVE-2026-99153)

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": "0:4.18.0-553.185.1.rt7.526.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-2026:98100"
  },
  "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: Revert \"net/smc: Introduce TCP ULP support\" (CVE-2026-46330)\n\n* kernel: Linux kernel: PPP over L2TP Use-After-Free vulnerability (CVE-2026-68398)\n\n* kernel: openvswitch: fix GSO userspace truncation underflow (CVE-2026-68123)\n\n* kernel: Bluetooth: mgmt: fix UAF in pair command cancellation (CVE-2026-74510)\n\n* kernel: net: bridge: mcast: fix use-after-free of a master VLAN\u0027s multicast context (CVE-2026-80842)\n\n* kernel: ALSA: seq: midi: Serialize input teardown with event_input (CVE-2026-90207)\n\n* kernel: ALSA: pcm: Serialize PCM mmap with buffer reallocation to fix page UAF (CVE-2026-98116)\n\n* kernel: s390/boot: Avoid IPL parameter append past command line (CVE-2026-98403)\n\n* kernel: kernel: Denial of Service via unvalidated task in iSCSI management responses (CVE-2026-99152)\n\n* kernel: kernel: Denial of service via unvalidated task tag in iSCSI Reject PDU (CVE-2026-99153)\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-2026:98100",
  "modified": "2026-11-12T12:13:58.619538Z",
  "published": "2026-11-12T12:02:05.404384Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://errata.rockylinux.org/RLSA-2026:98100"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2486999"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2513188"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2513451"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2516970"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2528639"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2536701"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2541360"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2552209"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2562697"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2562706"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:98100"
    }
  ],
  "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-2026-46330",
    "CVE-2026-68123",
    "CVE-2026-68398",
    "CVE-2026-74510",
    "CVE-2026-80842",
    "CVE-2026-90207",
    "CVE-2026-98116",
    "CVE-2026-98403",
    "CVE-2026-99152",
    "CVE-2026-99153"
  ]
}



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