{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "697a4bc69159c3396035b0506ffa55c4b2d0b1f4"
            },
            {
              "fixed": "af733bbfcf667af1871a2735fba2835b0da71efb"
            },
            {
              "fixed": "a9706d5e754e77515a92bb532bd0d73644979a1f"
            },
            {
              "fixed": "7e3154c97ec15460f715dbbe4097c255cce110b1"
            },
            {
              "fixed": "047f1f7ee6f85bde28abfdda9fa550191ddc0532"
            },
            {
              "fixed": "f93e8039e6fd54a3c027c6184daf00b745b576a0"
            },
            {
              "fixed": "7b22b4cb8822805cef7ba618da6f76e1474d68bd"
            },
            {
              "fixed": "f2d4f025b67fcbfb2bbbadd3b5a6a43c4b436514"
            },
            {
              "fixed": "de62cf265dbe309f34f144a6cdbca9240317727e"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.2.0"
            },
            {
              "fixed": "5.10.270"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.221"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.188"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.157"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.110"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.51"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89858.json"
  },
  "details": "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.",
  "id": "CVE-2026-89858",
  "modified": "2026-09-18T03:30:50.461620412Z",
  "published": "2026-09-16T10:31:30.876Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/047f1f7ee6f85bde28abfdda9fa550191ddc0532"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7b22b4cb8822805cef7ba618da6f76e1474d68bd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7e3154c97ec15460f715dbbe4097c255cce110b1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a9706d5e754e77515a92bb532bd0d73644979a1f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/af733bbfcf667af1871a2735fba2835b0da71efb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/de62cf265dbe309f34f144a6cdbca9240317727e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f2d4f025b67fcbfb2bbbadd3b5a6a43c4b436514"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f93e8039e6fd54a3c027c6184daf00b745b576a0"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89858.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-89858"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "scsi: qla2xxx: Bound image count in qla2x00_update_fru_versions()"
}