Important: kernel security, bug fix, and enhancement update

{
  "id": "129ba39f91de7578afb8c721769d3f21b61e799e78da5e4e279e3631e393ea65",
  "url": "https://osv.dev/vulnerability/RLSA-2026%3A85321",
  "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: openvswitch: defer tunnel netdev_put to RCU release (CVE-2026-31678) * kernel: xfrm: espintcp: do not reuse an in-progress partial send (CVE-2026-52935) * kernel: sctp: diag: reject stale associations in dump_one path (CVE-2026-52917) * kernel: tipc: fix slab-use-after-free Read in tipc_aead_decrypt_done (CVE-2026-63801) * kernel: sctp: fix race between sctp_wait_for_connect and peeloff (CVE-2026-63971) * kernel: usb: typec: tcpm: bound altmode_desc[] per iteration in svdm_consume_modes() (CVE-2026-63962) * kernel: sctp: avoid auth_enable sysctl UAF during netns teardown (CVE-2026-68162) * kernel: tipc: clear sock->sk on the failed-insert path in tipc_sk_create() (CVE-2026-68117) * kernel: sctp: auth: verify auth requirement when auth_chunk is NULL (CVE-2026-68300) * kernel: sctp: validate stream count in sctp_process_strreset_inreq() (CVE-2026-68315) * kernel: Bluetooth: hci_sync: Fix advertising data UAFs (CVE-2026-74509) * kernel: sctp: keep chunk->transport in step with the list it is queued on (CVE-2026-74588) * kernel: sctp: validate cookie AUTH state before use (CVE-2026-74752) * kernel: smb: client: reject a tree connect response whose byte count is too small (CVE-2026-89631) * kernel: smb: client: fix OOB read/write from unvalidated DataOffset in coalesce_t2() (CVE-2026-89633) * kernel: signal: Prevent exec() race (CVE-2026-98256) * kernel: exec: Cleanup ",
    "evidence": "osv:RLSA-2026:85321",
    "products": [
      {
        "name": {
          "value": "kernel",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "0:6.12.0-211.67.1.el10_2",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "RLSA-2026:85321",
      "aliases": [
        "RLSA-2026:85321"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "0:6.12.0-211.67.1.el10_2"
                }
              ],
              "database_specific": {
                "yum_repository": "BaseOS"
              }
            }
          ],
          "package": {
            "name": "kernel",
            "purl": "pkg:rpm/rocky-linux/kernel?distro=rocky-linux-10&epoch=0",
            "ecosystem": "Rocky Linux:10"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/resf-osv-data/RLSA-2026:85321.json"
          }
        }
      ],
      "modified": "2026-10-21T12:30:02.604618184Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-31678",
        "CVE-2026-52917",
        "CVE-2026-52935",
        "CVE-2026-63801",
        "CVE-2026-63962",
        "CVE-2026-63971",
        "CVE-2026-68117",
        "CVE-2026-68162",
        "CVE-2026-68300",
        "CVE-2026-68315",
        "CVE-2026-74509",
        "CVE-2026-74588",
        "CVE-2026-74752",
        "CVE-2026-89631",
        "CVE-2026-89633",
        "CVE-2026-98256",
        "CVE-2026-98260"
      ],
      "references": [
        "https://errata.rockylinux.org/RLSA-2026:85321",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2461761",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2492098",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2492115",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2502254",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2502331",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2502356",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2513314",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2513397",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2513408",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2513474",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2516967",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2521384",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2524422",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2532089",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2532230",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2546482",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2546491",
        "https://access.redhat.com/errata/RHSA-2026:85321"
      ],
      "provider_metadata": {
        "license": "CC-BY-4.0",
        "license_url": "https://creativecommons.org/licenses/by/4.0/",
        "source_advisory": "RHSA-2026:85321"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-31678",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-52917",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-52935",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-63801",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-63962",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-63971",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-68117",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-68162",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-68300",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-68315",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-74509",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-74588",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-74752",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-89631",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-89633",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-98256",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-98260",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 393051,
  "published_at": "2026-10-21T12:08:03.04509+00:00"
}