Important: kernel security, bug fix, and enhancement update

{
  "id": "9dc3172ecba4eb6d7a7bfc7d9d941b8c376ba62861cf592b42ac9a5b575ee62d",
  "url": "https://osv.dev/vulnerability/RLSA-2026%3A86033",
  "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: USB: serial: mxuport: fix memory corruption with small endpoint (CVE-2026-63899) * kernel: bridge: mcast: Fix a possible use-after-free when removing a bridge port (CVE-2026-64032) * kernel: tcp: fix stale per-CPU tcp_tw_isn leak enabling ISN prediction (CVE-2026-64024) * kernel: usb: typec: tcpm: bound altmode_desc[] per iteration in svdm_consume_modes() (CVE-2026-63962) * kernel: Bluetooth: hci_sync: Set HCI_CMD_DRAIN_WORKQUEUE during device close (CVE-2026-63974) * kernel: ipv4: raw: reject IP_HDRINCL packets with ihl < 5 (CVE-2026-64114) * kernel: ipv4: fib: free fib_alias with kfree_rcu() on insert error path (CVE-2026-64572) * kernel: Bluetooth: hci_sync: Fix advertising data UAFs (CVE-2026-74509) * kernel: Linux kernel: Denial of Service due to incorrect GSO state handling in network fragment reassembly (CVE-2026-80590) * kernel: smb: client: fix OOB read/write from unvalidated DataOffset in coalesce_t2() (CVE-2026-89633) * kernel: perf: Fix addr_filter_ranges lifetime (CVE-2026-93817) * kernel: kernel: strparser: use-after-free via msg_timer_work rearm after strp_done() cancellation () * kernel: exec: Cleanup POSIX timers right after de_thread() (CVE-2026-98260) * kernel: ipv4: validate checksum_",
    "evidence": "osv:RLSA-2026:86033",
    "products": [
      {
        "name": {
          "value": "kernel",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "0:5.14.0-687.59.1.el9_8",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "RLSA-2026:86033",
      "aliases": [
        "RLSA-2026:86033"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "0:5.14.0-687.59.1.el9_8"
                }
              ],
              "database_specific": {
                "yum_repository": "BaseOS"
              }
            }
          ],
          "package": {
            "name": "kernel",
            "purl": "pkg:rpm/rocky-linux/kernel?distro=rocky-linux-9&epoch=0",
            "ecosystem": "Rocky Linux:9"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/resf-osv-data/RLSA-2026:86033.json"
          }
        }
      ],
      "modified": "2026-10-22T00:30:04.284939163Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-31678",
        "CVE-2026-52935",
        "CVE-2026-63899",
        "CVE-2026-63962",
        "CVE-2026-63974",
        "CVE-2026-64024",
        "CVE-2026-64032",
        "CVE-2026-64114",
        "CVE-2026-64572",
        "CVE-2026-74509",
        "CVE-2026-80590",
        "CVE-2026-89633",
        "CVE-2026-93817",
        "CVE-2026-98260",
        "CVE-2026-99999"
      ],
      "references": [
        "https://errata.rockylinux.org/RLSA-2026:86033",
        "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=2502325",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2502332",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2502333",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2502356",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2502462",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2502486",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2511413",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2516967",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2525413",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2532230",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2540391",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2546491",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2553429",
        "https://access.redhat.com/errata/RHSA-2026:86033"
      ],
      "provider_metadata": {
        "license": "CC-BY-4.0",
        "license_url": "https://creativecommons.org/licenses/by/4.0/",
        "source_advisory": "RHSA-2026:86033"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-31678",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-52935",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-63899",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-63962",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-63974",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-64024",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-64032",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-64114",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-64572",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-74509",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-80590",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-89633",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-93817",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-98260",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-99999",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 401164,
  "published_at": "2026-10-22T00:04:07.745746+00:00"
}