{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "ec89146215d124c429bff84b498dccdc4919ffa7"
            },
            {
              "fixed": "9fc03be982763a131913f84fe73b240ae45bca37"
            },
            {
              "fixed": "a152edab3854f01dd2daf3eaf8f32cbabdb3834e"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.8.0"
            },
            {
              "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-2026-89859.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Zero dport diagnostics buffer to avoid info leak\n\nqla2x00_do_dport_diagnostics() allocates the qla_dport_diag response\nbuffer with kmalloc_obj() (non-zeroing) and, on success, copies the full\nsizeof(*dd) back to user space via sg_copy_from_buffer(). The inbound\nsg_copy_to_buffer() only fills as many bytes as the user request payload\nprovides, and qla26xx_dport_diagnostics() zeroes only dd-\u003ebuf. The\noptions and unused[] fields are therefore copied out uninitialized,\nleaking kernel heap contents to user space.\n\nAllocate with kzalloc_obj(), matching qla2x00_do_dport_diagnostics_v2().",
  "id": "CVE-2026-89859",
  "modified": "2026-09-18T03:30:43.253767614Z",
  "published": "2026-09-16T10:31:31.554Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9fc03be982763a131913f84fe73b240ae45bca37"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a152edab3854f01dd2daf3eaf8f32cbabdb3834e"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89859.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-89859"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "scsi: qla2xxx: Zero dport diagnostics buffer to avoid info leak"
}