{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "68ca949cdb04b4dc71451a999148fbc5f187a220"
            },
            {
              "fixed": "1710a69fd74d0b4bdfcc57c3309b1c4057f70d85"
            },
            {
              "fixed": "f1f4d1cb93eeeb250eac9405121933e268eefbd3"
            },
            {
              "fixed": "19788a55cab61d78e33e0914a5a31d27843e8a4a"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.6.31"
            },
            {
              "fixed": "6.18.53"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/97xxx/CVE-2026-97536.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Fix use-after-free of qpair work on queue teardown\n\nThe response queue MSI-X handler qla2xxx_msix_rsp_q() schedules\nqla_do_work() via queue_work(ha-\u003ewq, \u0026qpair-\u003eq_work). qla_do_work()\ndereferences the qpair (vha, rsp) and takes qpair-\u003eqp_lock.\n\nDuring teardown, qla2xxx_delete_qpair() deletes the response queue, which\ncalls free_irq() in qla25xx_free_rsp_que(), and then frees the queue and\nthe qpair. free_irq() waits for running hardirq handlers but does not\ncancel work already placed on ha-\u003ewq. A still-pending q_work then runs\nqla_do_work() against the freed qpair and response queue, causing a\nuse-after-free. This is especially likely during full adapter teardown,\nwhere destroy_workqueue(ha-\u003ewq) forces pending work to run after the queue\npairs have been freed.\n\nFlush the work item with cancel_work_sync() in qla25xx_free_rsp_que()\nafter free_irq() has released the interrupt (so no new work can be\nqueued) and before the response queue and qpair memory are freed (so the\nflushed handler still sees valid memory). Guard on rsp-\u003eqpair and ha-\u003ewq\nto match the INIT_WORK() condition and avoid operating on an\nuninitialized work_struct.",
  "id": "CVE-2026-97536",
  "modified": "2026-09-27T03:30:15.919664985Z",
  "published": "2026-09-25T10:21:34.991Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1710a69fd74d0b4bdfcc57c3309b1c4057f70d85"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/19788a55cab61d78e33e0914a5a31d27843e8a4a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f1f4d1cb93eeeb250eac9405121933e268eefbd3"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/97xxx/CVE-2026-97536.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-97536"
    },
    {
      "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:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "scsi: qla2xxx: Fix use-after-free of qpair work on queue teardown"
}