{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "430eef03a763e5e76a371ba6d02779ae4a64b6ea"
            },
            {
              "fixed": "e8f1b0cb9782338c6341ceed816e9c1243743cdd"
            },
            {
              "fixed": "6ed66e2a67bbd22877008ff9aa64bd574a7fc011"
            },
            {
              "fixed": "776e4e8cbcf155302f430ce9793d1502e3c113a0"
            },
            {
              "fixed": "7d0b3f745efb24c0aac5e06b49b3420bc65d23b9"
            },
            {
              "fixed": "7944039ba9cb5c3a935d17c91004e3b8649ff58e"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.3.0"
            },
            {
              "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-2026-89844.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Hold vport_slock for host map update in report ID acquisition\n\nqla24xx_report_id_acquisition() format-1 handling drops vport_slock after\ntaking the vport reference and then calls qla_update_host_map() without\nthe lock. That reaches qla_update_vp_map(), which mutates the ha-\u003ehost_map\nbtree via btree_insert32()/btree_update32()/btree_remove32() and is\ndocumented to require vport_slock to be held by the caller. Running it\nunlocked can race concurrent host_map updates and corrupt the btree.\n\nThe format-2 path in the same function already wraps its host_map update\n(SET_AL_PA) in vport_slock; the format-1 path is the lone outlier.\n\nHold vport_slock across the format-1 qla_update_host_map() call to honor\nthe documented locking contract. The vref_count taken in the loop keeps\nthe vport valid, so this only adds the missing host_map serialization.",
  "id": "CVE-2026-89844",
  "modified": "2026-09-18T03:30:23.851428045Z",
  "published": "2026-09-16T10:31:18.439Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6ed66e2a67bbd22877008ff9aa64bd574a7fc011"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/776e4e8cbcf155302f430ce9793d1502e3c113a0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7944039ba9cb5c3a935d17c91004e3b8649ff58e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7d0b3f745efb24c0aac5e06b49b3420bc65d23b9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e8f1b0cb9782338c6341ceed816e9c1243743cdd"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89844.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-89844"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "scsi: qla2xxx: Hold vport_slock for host map update in report ID acquisition"
}