Important: kernel security, bug fix, and enhancement update

{
  "id": "ddff2e7363b0ba0db4c9aef0e6fbf831027219a3ebbcd6b17dace3434c270203",
  "url": "https://osv.dev/vulnerability/RLSA-2026%3A81406",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Important: kernel security, bug fix, and enhancement update",
    "summary": "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.",
    "evidence": "osv:RLSA-2026:81406",
    "products": [
      {
        "name": {
          "value": "kernel",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "0:6.12.0-211.65.1.el10_2",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "RLSA-2026:81406",
      "aliases": [
        "RLSA-2026:81406"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "0:6.12.0-211.65.1.el10_2"
                }
              ],
              "database_specific": {
                "yum_repository": "BaseOS"
              }
            }
          ],
          "package": {
            "name": "kernel",
            "purl": "pkg:rpm/rocky-linux/kernel?distro=rocky-linux-10-riscv64&epoch=0",
            "ecosystem": "Rocky Linux:10"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/resf-osv-data/RLSA-2026:81406.json"
          }
        }
      ],
      "modified": "2026-10-14T12:30:02.642712500Z",
      "provider": "osv",
      "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"
      ],
      "references": [
        "https://errata.rockylinux.org/RLSA-2026:81406",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2468043",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2502397",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2502872",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2507035",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2507153",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2507218",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2513451",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2516396",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2516657",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2524478",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2535265",
        "https://access.redhat.com/errata/RHSA-2026:81406"
      ],
      "provider_metadata": {
        "license": "CC-BY-4.0",
        "license_url": "https://creativecommons.org/licenses/by/4.0/",
        "source_advisory": "RHSA-2026:81406"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-43332",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-63925",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-64191",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-64385",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-64507",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-64508",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-68123",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-72289",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-72318",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-80521",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-89970",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 316296,
  "published_at": "2026-10-14T12:08:56.68559+00:00"
}