CVE-2026-89458 (GCVE-0-2026-89458)

Vulnerability from cvelistv5 – Published: 2026-09-11 19:43 – Updated: 2026-10-19 08:47
VLAI
Title
s390/dasd: Do not complete a failed ESE read as successful
Summary
In the Linux kernel, the following vulnerability has been resolved: s390/dasd: Do not complete a failed ESE read as successful dasd_int_handler() completes an NRF read of an unallocated ESE track by calling ese_read() and unconditionally marking the request DASD_CQR_SUCCESS. dasd_eckd_ese_read() can return an error before it has zeroed the destination buffer: a failed sense-data parse or a current track outside the requested range both return early, leaving the destination pages untouched. The request is still completed successfully, so the block layer is handed stale / uninitialized memory instead of zeros. Check the ese_read() return value and fail the request through the normal error path instead of forcing DASD_CQR_SUCCESS.
Severity
No CVSS data available.
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 7018 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 5e6bdd37c5526ef01326df5dabb93011ee89237e , < 8cb96cffceead3cbd0541154d7ecc5e6474edda1 (git)
Affected: 5e6bdd37c5526ef01326df5dabb93011ee89237e , < 77168af195d04b34c6de62b874624e74d64cef8d (git)
Affected: 5e6bdd37c5526ef01326df5dabb93011ee89237e , < 921ff697bb6f7067059793becf8b2d00de71ce41 (git)
Affected: 5e6bdd37c5526ef01326df5dabb93011ee89237e , < 55f4df40178cdfede0d7ae848fbab00efa9b95c1 (git)
Affected: 5e6bdd37c5526ef01326df5dabb93011ee89237e , < c9adf8399732306dfc97b3adb4778038743e3f5e (git)
Affected: 5e6bdd37c5526ef01326df5dabb93011ee89237e , < 52b331c99baac653ca794bd8487c8ec4de8db203 (git)
Affected: 5e6bdd37c5526ef01326df5dabb93011ee89237e , < b0d94dd6e82df396e2254c8b0f25eff7d19c2e7f (git)
Affected: 5e6bdd37c5526ef01326df5dabb93011ee89237e , < cddb447c62466f3076938ce120028d7b591f9f37 (git)
Affected: fbbacd0dcbc3ae9398c569dbea96ae4b5ad97e04 (git)
Affected: 5f7c9989f11305aaa43e0f4378f4f070022a9f2b (git)
Affected: 5.4.26 , < 5.5 (semver)
Affected: 5.5.10 , < 5.6 (semver)
guessed Create a notification for this product.
Linux Linux Affected: 5.6
Unaffected: 0 , < 5.6 (semver)
Unaffected: 5.10.270 , ≤ 5.10.* (semver)
Unaffected: 5.15.221 , ≤ 5.15.* (semver)
Unaffected: 6.1.188 , ≤ 6.1.* (semver)
Unaffected: 6.6.157 , ≤ 6.6.* (semver)
Unaffected: 6.12.109 , ≤ 6.12.* (semver)
Unaffected: 6.18.50 , ≤ 6.18.* (semver)
Unaffected: 7.2.4 , ≤ 7.2.* (semver)
Unaffected: 7.3 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/s390/block/dasd.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "8cb96cffceead3cbd0541154d7ecc5e6474edda1",
              "status": "affected",
              "version": "5e6bdd37c5526ef01326df5dabb93011ee89237e",
              "versionType": "git"
            },
            {
              "lessThan": "77168af195d04b34c6de62b874624e74d64cef8d",
              "status": "affected",
              "version": "5e6bdd37c5526ef01326df5dabb93011ee89237e",
              "versionType": "git"
            },
            {
              "lessThan": "921ff697bb6f7067059793becf8b2d00de71ce41",
              "status": "affected",
              "version": "5e6bdd37c5526ef01326df5dabb93011ee89237e",
              "versionType": "git"
            },
            {
              "lessThan": "55f4df40178cdfede0d7ae848fbab00efa9b95c1",
              "status": "affected",
              "version": "5e6bdd37c5526ef01326df5dabb93011ee89237e",
              "versionType": "git"
            },
            {
              "lessThan": "c9adf8399732306dfc97b3adb4778038743e3f5e",
              "status": "affected",
              "version": "5e6bdd37c5526ef01326df5dabb93011ee89237e",
              "versionType": "git"
            },
            {
              "lessThan": "52b331c99baac653ca794bd8487c8ec4de8db203",
              "status": "affected",
              "version": "5e6bdd37c5526ef01326df5dabb93011ee89237e",
              "versionType": "git"
            },
            {
              "lessThan": "b0d94dd6e82df396e2254c8b0f25eff7d19c2e7f",
              "status": "affected",
              "version": "5e6bdd37c5526ef01326df5dabb93011ee89237e",
              "versionType": "git"
            },
            {
              "lessThan": "cddb447c62466f3076938ce120028d7b591f9f37",
              "status": "affected",
              "version": "5e6bdd37c5526ef01326df5dabb93011ee89237e",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "fbbacd0dcbc3ae9398c569dbea96ae4b5ad97e04",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "5f7c9989f11305aaa43e0f4378f4f070022a9f2b",
              "versionType": "git"
            },
            {
              "lessThan": "5.5",
              "status": "affected",
              "version": "5.4.26",
              "versionType": "semver"
            },
            {
              "lessThan": "5.6",
              "status": "affected",
              "version": "5.5.10",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/s390/block/dasd.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.6"
            },
            {
              "lessThan": "5.6",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.270",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.221",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.188",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.157",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.109",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.50",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.270",
                  "versionStartIncluding": "5.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.221",
                  "versionStartIncluding": "5.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.188",
                  "versionStartIncluding": "5.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.157",
                  "versionStartIncluding": "5.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.109",
                  "versionStartIncluding": "5.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.50",
                  "versionStartIncluding": "5.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.4",
                  "versionStartIncluding": "5.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3",
                  "versionStartIncluding": "5.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "5.4.26",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "5.5.10",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/dasd: Do not complete a failed ESE read as successful\n\ndasd_int_handler() completes an NRF read of an unallocated ESE track by\ncalling ese_read() and unconditionally marking the request\nDASD_CQR_SUCCESS. dasd_eckd_ese_read() can return an error before it has\nzeroed the destination buffer: a failed sense-data parse or a current\ntrack outside the requested range both return early, leaving the\ndestination pages untouched. The request is still completed successfully,\nso the block layer is handed stale / uninitialized memory instead of\nzeros.\n\nCheck the ese_read() return value and fail the request through the normal\nerror path instead of forcing DASD_CQR_SUCCESS."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T08:47:07.708Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/8cb96cffceead3cbd0541154d7ecc5e6474edda1"
        },
        {
          "url": "https://git.kernel.org/stable/c/77168af195d04b34c6de62b874624e74d64cef8d"
        },
        {
          "url": "https://git.kernel.org/stable/c/921ff697bb6f7067059793becf8b2d00de71ce41"
        },
        {
          "url": "https://git.kernel.org/stable/c/55f4df40178cdfede0d7ae848fbab00efa9b95c1"
        },
        {
          "url": "https://git.kernel.org/stable/c/c9adf8399732306dfc97b3adb4778038743e3f5e"
        },
        {
          "url": "https://git.kernel.org/stable/c/52b331c99baac653ca794bd8487c8ec4de8db203"
        },
        {
          "url": "https://git.kernel.org/stable/c/b0d94dd6e82df396e2254c8b0f25eff7d19c2e7f"
        },
        {
          "url": "https://git.kernel.org/stable/c/cddb447c62466f3076938ce120028d7b591f9f37"
        }
      ],
      "title": "s390/dasd: Do not complete a failed ESE read as successful",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-89458",
    "datePublished": "2026-09-11T19:43:21.346Z",
    "dateReserved": "2026-09-11T19:38:34.707Z",
    "dateUpdated": "2026-10-19T08:47:07.708Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-89458",
      "date": "2026-11-01",
      "epss": "0.00177",
      "percentile": "0.07202"
    },
    "microsoft_vex": {
      "current_release_date": "2026-09-15T01:54:33.000Z",
      "cve": "CVE-2026-89458",
      "id": "msrc_CVE-2026-89458",
      "initial_release_date": "2026-09-13T01:05:23.000Z",
      "product_status:known_not_affected": "1",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "s390/dasd: Do not complete a failed ESE read as successful",
      "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-89458.json",
      "version": "3"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
                  "drivers/s390/block/dasd.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "lessThan": "8cb96cffceead3cbd0541154d7ecc5e6474edda1",
                    "status": "affected",
                    "version": "5e6bdd37c5526ef01326df5dabb93011ee89237e",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "77168af195d04b34c6de62b874624e74d64cef8d",
                    "status": "affected",
                    "version": "5e6bdd37c5526ef01326df5dabb93011ee89237e",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "921ff697bb6f7067059793becf8b2d00de71ce41",
                    "status": "affected",
                    "version": "5e6bdd37c5526ef01326df5dabb93011ee89237e",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "55f4df40178cdfede0d7ae848fbab00efa9b95c1",
                    "status": "affected",
                    "version": "5e6bdd37c5526ef01326df5dabb93011ee89237e",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "c9adf8399732306dfc97b3adb4778038743e3f5e",
                    "status": "affected",
                    "version": "5e6bdd37c5526ef01326df5dabb93011ee89237e",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "52b331c99baac653ca794bd8487c8ec4de8db203",
                    "status": "affected",
                    "version": "5e6bdd37c5526ef01326df5dabb93011ee89237e",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "b0d94dd6e82df396e2254c8b0f25eff7d19c2e7f",
                    "status": "affected",
                    "version": "5e6bdd37c5526ef01326df5dabb93011ee89237e",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "cddb447c62466f3076938ce120028d7b591f9f37",
                    "status": "affected",
                    "version": "5e6bdd37c5526ef01326df5dabb93011ee89237e",
                    "versionType": "git"
                  },
                  {
                    "status": "affected",
                    "version": "fbbacd0dcbc3ae9398c569dbea96ae4b5ad97e04",
                    "versionType": "git"
                  },
                  {
                    "status": "affected",
                    "version": "5f7c9989f11305aaa43e0f4378f4f070022a9f2b",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "5.5",
                    "status": "affected",
                    "version": "5.4.26",
                    "versionType": "semver"
                  },
                  {
                    "lessThan": "5.6",
                    "status": "affected",
                    "version": "5.5.10",
                    "versionType": "semver"
                  }
                ]
              },
              {
                "defaultStatus": "affected",
                "product": "Linux",
                "programFiles": [
                  "drivers/s390/block/dasd.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "status": "affected",
                    "version": "5.6"
                  },
                  {
                    "lessThan": "5.6",
                    "status": "unaffected",
                    "version": "0",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.10.*",
                    "status": "unaffected",
                    "version": "5.10.270",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.15.*",
                    "status": "unaffected",
                    "version": "5.15.221",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.1.*",
                    "status": "unaffected",
                    "version": "6.1.188",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.6.*",
                    "status": "unaffected",
                    "version": "6.6.157",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.12.*",
                    "status": "unaffected",
                    "version": "6.12.109",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.18.*",
                    "status": "unaffected",
                    "version": "6.18.50",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "7.2.*",
                    "status": "unaffected",
                    "version": "7.2.4",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "*",
                    "status": "unaffected",
                    "version": "7.3",
                    "versionType": "original_commit_for_fix"
                  }
                ]
              }
            ],
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/dasd: Do not complete a failed ESE read as successful\n\ndasd_int_handler() completes an NRF read of an unallocated ESE track by\ncalling ese_read() and unconditionally marking the request\nDASD_CQR_SUCCESS. dasd_eckd_ese_read() can return an error before it has\nzeroed the destination buffer: a failed sense-data parse or a current\ntrack outside the requested range both return early, leaving the\ndestination pages untouched. The request is still completed successfully,\nso the block layer is handed stale / uninitialized memory instead of\nzeros.\n\nCheck the ese_read() return value and fail the request through the normal\nerror path instead of forcing DASD_CQR_SUCCESS."
          }
        ],
        "id": "CVE-2026-89458",
        "lastModified": "2026-10-19T09:17:38.187",
        "metrics": {},
        "published": "2026-09-11T20:19:26.657",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/52b331c99baac653ca794bd8487c8ec4de8db203"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/55f4df40178cdfede0d7ae848fbab00efa9b95c1"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/77168af195d04b34c6de62b874624e74d64cef8d"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/8cb96cffceead3cbd0541154d7ecc5e6474edda1"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/921ff697bb6f7067059793becf8b2d00de71ce41"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/b0d94dd6e82df396e2254c8b0f25eff7d19c2e7f"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/c9adf8399732306dfc97b3adb4778038743e3f5e"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/cddb447c62466f3076938ce120028d7b591f9f37"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Received"
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-10-24T04:34:09+00:00",
      "cve": "CVE-2026-89458",
      "id": "CVE-2026-89458",
      "initial_release_date": "2026-09-11T00:00:00+00:00",
      "product_status:known_affected": "187",
      "product_status:known_not_affected": "91",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: s390/dasd: Do not complete a failed ESE read as successful",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89458.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-10-20T01:12:14Z",
      "cve": "CVE-2026-89458",
      "id": "CVE-2026-89458",
      "initial_release_date": "2026-09-15T00:59:08Z",
      "product_status:known_affected": "261",
      "product_status:known_not_affected": "93",
      "product_status:recommended": "4",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-89458",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/2026/cve-2026-89458.json",
      "version": "4"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON
How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Loading timeline…




    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.