scsi: qla2xxx: Hold vport reference in qla24xx_report_id_acquisition()

{
  "id": "a1f454a7cbf65c7300edaba045de8e87678cbfbc4495557c5a0e97a4fbe1880e",
  "url": "https://osv.dev/vulnerability/CVE-2026-89861",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "scsi: qla2xxx: Hold vport reference in qla24xx_report_id_acquisition()",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Hold vport reference in qla24xx_report_id_acquisition() In the format 1 path, the virtual port is located on ha->vp_list while holding vport_slock, but the lock is dropped before vp is used: qla_update_host_map() is called and VP_IDX_ACQUIRED/REGISTER_FC4_NEEDED/ REGISTER_FDMI_NEEDED are set on vp. No reference is taken across that window, so a concurrent qla24xx_deallocate_vp_id() can tear the vport down and free it, leading to a use-after-free. Take a vport reference (vref_count) under vport_slock when the matching vp is found, and drop it after the last use of vp. qla24xx_deallocate_vp_id() waits for vref_count to reach zero before unlinking and freeing the vport, so the pointer stays valid. This matches the reference idiom already used by the other ha->vp_list traversals.",
    "evidence": "osv:CVE-2026-89861",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.10.270",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.15.221",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.1.188",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.157",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.110",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.18.51",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "7.2.5",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-89861",
      "aliases": [
        "CVE-2026-89861"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "2c3dfe3f6ad8daff5acdb01713e4f2b116e78136"
                },
                {
                  "fixed": "d09ef32af1e05d79f29b460521a20bc4e6fd2ecf"
                },
                {
                  "fixed": "4b7f0a95bfeb1d3673da4c29bbe9872a61bc1a69"
                },
                {
                  "fixed": "267533b28ddf2c9223d30ad7e6960fa9e936428e"
                },
                {
                  "fixed": "f8d2eb510c063a8ca79a5dc766a4303d3925fe83"
                },
                {
                  "fixed": "f6b3bcc7cb2f4c37464958b9fd97dc7f185ea297"
                },
                {
                  "fixed": "47272152a13d202d98496208f9bf382c1cf4d4fb"
                },
                {
                  "fixed": "d556f899964d184e6cb788f3fa9dcddcafe1ab2d"
                },
                {
                  "fixed": "793cedee296fd819bfadc2a7ec4d52faf9c09a0a"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89861.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "2.6.23"
                },
                {
                  "fixed": "5.10.270"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.11.0"
                },
                {
                  "fixed": "5.15.221"
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              ]
            },
            {
              "type": "ECOSYSTEM",
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                {
                  "introduced": "5.16.0"
                },
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                  "fixed": "6.1.188"
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              "type": "ECOSYSTEM",
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                  "introduced": "6.2.0"
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            {
              "type": "ECOSYSTEM",
              "events": [
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                  "introduced": "6.7.0"
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                  "fixed": "6.12.110"
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            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
                },
                {
                  "fixed": "6.18.51"
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              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.19.0"
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                {
                  "fixed": "7.2.5"
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            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89861.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:48.638558214Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/267533b28ddf2c9223d30ad7e6960fa9e936428e",
        "https://git.kernel.org/stable/c/47272152a13d202d98496208f9bf382c1cf4d4fb",
        "https://git.kernel.org/stable/c/4b7f0a95bfeb1d3673da4c29bbe9872a61bc1a69",
        "https://git.kernel.org/stable/c/793cedee296fd819bfadc2a7ec4d52faf9c09a0a",
        "https://git.kernel.org/stable/c/d09ef32af1e05d79f29b460521a20bc4e6fd2ecf",
        "https://git.kernel.org/stable/c/d556f899964d184e6cb788f3fa9dcddcafe1ab2d",
        "https://git.kernel.org/stable/c/f6b3bcc7cb2f4c37464958b9fd97dc7f185ea297",
        "https://git.kernel.org/stable/c/f8d2eb510c063a8ca79a5dc766a4303d3925fe83",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89861.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-89861",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89861.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-89861",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 517091,
  "published_at": "2026-09-16T10:31:32.987+00:00"
}