RLSA-2026:81406 (CVE-2026-43332)

Vulnerability from osv_rocky – Published: 2026-10-14 12:08 – Updated: 2026-10-17 00:15 – Source website
VLAI
Summary
Important: kernel security, bug fix, and enhancement update
Details

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

  • kernel: thermal: core: Fix thermal zone device registration error path (CVE-2026-43332)

  • kernel: macsec: fix replay protection at XPN lower-PN wrap (CVE-2026-63925)

  • kernel: i2c: stub: Reject I2C block transfers with invalid length (CVE-2026-64191)

  • kernel: Kernel SMB client: Double-free vulnerability allows remote denial of service or privilege escalation (CVE-2026-64385)

  • kernel: bpf: Support for hardening against JIT spraying (CVE-2026-64508)

  • kernel: x86/bugs: Enable IBPB flush on BPF JIT allocation (CVE-2026-64507)

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

  • kernel: cifs: validate DFS referral string offsets (CVE-2026-72318)

  • kernel: KVM: arm64: vgic: Check the interrupt is still ours before migrating it (CVE-2026-72289)

  • kernel: af_unix: Unlink scc_entry in unix_del_edge() (CVE-2026-80521)

  • kernel: nvmet-auth: Synchronize timeout work during SQ teardown (CVE-2026-89970)

Bug Fix(es) and Enhancement(s):

  • net/tls backports for 10.2 (JIRA:Rocky Linux-275027)

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

{
  "affected": [
    {
      "package": {
        "ecosystem": "Rocky Linux:10",
        "name": "kernel",
        "purl": "pkg:rpm/rocky-linux/kernel?distro=rocky-linux-10-riscv64\u0026epoch=0"
      },
      "ranges": [
        {
          "database_specific": {
            "yum_repository": "BaseOS"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0:6.12.0-211.65.1.el10_2"
            }
          ],
          "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-2026:81406"
  },
  "details": "The kernel packages contain the Linux kernel, the core of any Linux operating system.\n\nSecurity Fix(es):\n\n* kernel: thermal: core: Fix thermal zone device registration error path (CVE-2026-43332)\n\n* kernel: macsec: fix replay protection at XPN lower-PN wrap (CVE-2026-63925)\n\n* kernel: i2c: stub: Reject I2C block transfers with invalid length (CVE-2026-64191)\n\n* kernel: Kernel SMB client: Double-free vulnerability allows remote denial of service or privilege escalation (CVE-2026-64385)\n\n* kernel: bpf: Support for hardening against JIT spraying (CVE-2026-64508)\n\n* kernel: x86/bugs: Enable IBPB flush on BPF JIT allocation (CVE-2026-64507)\n\n* kernel: openvswitch: fix GSO userspace truncation underflow (CVE-2026-68123)\n\n* kernel: cifs: validate DFS referral string offsets (CVE-2026-72318)\n\n* kernel: KVM: arm64: vgic: Check the interrupt is still ours before migrating it (CVE-2026-72289)\n\n* kernel: af_unix: Unlink scc_entry in unix_del_edge() (CVE-2026-80521)\n\n* kernel: nvmet-auth: Synchronize timeout work during SQ teardown (CVE-2026-89970)\n\nBug Fix(es) and Enhancement(s):\n\n* net/tls backports for 10.2 (JIRA:Rocky Linux-275027)\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-2026:81406",
  "modified": "2026-10-17T00:15:43.111624Z",
  "published": "2026-10-14T12:08:56.685590Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://errata.rockylinux.org/RLSA-2026:81406"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2468043"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502397"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502872"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2507035"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2507153"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2507218"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2513451"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2516396"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2516657"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2524478"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2535265"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:81406"
    }
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Important: kernel security, bug fix, and enhancement update",
  "upstream": [
    "CVE-2026-43332",
    "CVE-2026-63925",
    "CVE-2026-64191",
    "CVE-2026-64385",
    "CVE-2026-64507",
    "CVE-2026-64508",
    "CVE-2026-68123",
    "CVE-2026-72289",
    "CVE-2026-72318",
    "CVE-2026-80521",
    "CVE-2026-89970"
  ]
}



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