CVE-2026-89858 (GCVE-0-2026-89858)

Vulnerability from cvelistv5 – Published: 2026-09-16 10:31 – Updated: 2026-10-19 08:53
VLAI
Title
scsi: qla2xxx: Bound image count in qla2x00_update_fru_versions()
Summary
In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Bound image count in qla2x00_update_fru_versions() qla2x00_update_fru_versions() copies the user-supplied BSG request into a fixed 256-byte stack buffer (bsg[DMA_POOL_SIZE]) and then iterates list->count times over the qla_image_version array embedded in that buffer, advancing the image pointer each iteration. count is taken directly from user input with no upper bound, while only (DMA_POOL_SIZE - sizeof(list->count)) / sizeof(struct qla_image_version) = 6 entries actually fit. A larger count walks the image pointer off the end of the stack buffer, reading adjacent kernel stack memory and sending it to the device via qla2x00_write_sfp(). Reject requests whose declared count does not fit in the buffer.
Severity
No CVSS data available.
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6639 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 697a4bc69159c3396035b0506ffa55c4b2d0b1f4 , < af733bbfcf667af1871a2735fba2835b0da71efb (git)
Affected: 697a4bc69159c3396035b0506ffa55c4b2d0b1f4 , < a9706d5e754e77515a92bb532bd0d73644979a1f (git)
Affected: 697a4bc69159c3396035b0506ffa55c4b2d0b1f4 , < 7e3154c97ec15460f715dbbe4097c255cce110b1 (git)
Affected: 697a4bc69159c3396035b0506ffa55c4b2d0b1f4 , < 047f1f7ee6f85bde28abfdda9fa550191ddc0532 (git)
Affected: 697a4bc69159c3396035b0506ffa55c4b2d0b1f4 , < f93e8039e6fd54a3c027c6184daf00b745b576a0 (git)
Affected: 697a4bc69159c3396035b0506ffa55c4b2d0b1f4 , < 7b22b4cb8822805cef7ba618da6f76e1474d68bd (git)
Affected: 697a4bc69159c3396035b0506ffa55c4b2d0b1f4 , < f2d4f025b67fcbfb2bbbadd3b5a6a43c4b436514 (git)
Affected: 697a4bc69159c3396035b0506ffa55c4b2d0b1f4 , < de62cf265dbe309f34f144a6cdbca9240317727e (git)
guessed Create a notification for this product.
Linux Linux Affected: 3.2
Unaffected: 0 , < 3.2 (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: 6.12.110 , ≤ 6.12.* (semver)
Unaffected: 6.18.51 , ≤ 6.18.* (semver)
Unaffected: 7.2.5 , ≤ 7.2.* (semver)
Unaffected: 7.3 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Bound image count in qla2x00_update_fru_versions()\n\nqla2x00_update_fru_versions() copies the user-supplied BSG request into\na fixed 256-byte stack buffer (bsg[DMA_POOL_SIZE]) and then iterates\nlist-\u003ecount times over the qla_image_version array embedded in that\nbuffer, advancing the image pointer each iteration. count is taken\ndirectly from user input with no upper bound, while only (DMA_POOL_SIZE\n- sizeof(list-\u003ecount)) / sizeof(struct qla_image_version) = 6 entries\nactually fit. A larger count walks the image pointer off the end of the\nstack buffer, reading adjacent kernel stack memory and sending it to the\ndevice via qla2x00_write_sfp().\n\nReject requests whose declared count does not fit in the buffer."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T08:53:50.969Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
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          "url": "https://git.kernel.org/stable/c/af733bbfcf667af1871a2735fba2835b0da71efb"
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        {
          "url": "https://git.kernel.org/stable/c/a9706d5e754e77515a92bb532bd0d73644979a1f"
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          "url": "https://git.kernel.org/stable/c/de62cf265dbe309f34f144a6cdbca9240317727e"
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      "title": "scsi: qla2xxx: Bound image count in qla2x00_update_fru_versions()",
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    "datePublished": "2026-09-16T10:31:30.876Z",
    "dateReserved": "2026-09-11T19:38:34.771Z",
    "dateUpdated": "2026-10-19T08:53:50.969Z",
    "state": "PUBLISHED"
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      "product_status:known_affected": "2",
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      "source": "Microsoft CSAF VEX",
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          }
        ],
        "id": "CVE-2026-89858",
        "lastModified": "2026-10-19T09:18:30.243",
        "metrics": {},
        "published": "2026-09-16T11:16:53.693",
        "references": [
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            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Received"
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-11-06T01:24:59+00:00",
      "cve": "CVE-2026-89858",
      "id": "CVE-2026-89858",
      "initial_release_date": "2026-09-16T00:00:00+00:00",
      "product_status:known_affected": "203",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: scsi: qla2xxx: Bound image count in qla2x00_update_fru_versions()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89858.json",
      "version": "3"
    }
  }
}



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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.

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    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.