{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "d74595278f4ab192af66d9e60a9087464638beee"
            },
            {
              "fixed": "7ac5be2a8609679fc6bbfea881360444a5ce8202"
            },
            {
              "fixed": "1486cc18be3e2b4c2a730f4a1b0448d009381b3d"
            },
            {
              "fixed": "10e9f05f7fd0a103886a867ec8afe621fe4b906a"
            },
            {
              "fixed": "157ca7d1af45f87aa14a286754f19c3f72386988"
            },
            {
              "fixed": "505753ec2594c6af09a601f0dd60be7d840c1d2d"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.10.0"
            },
            {
              "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-2026-89848.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Quiesce response IRQ before freeing request queue\n\nqla2xxx_delete_qpair() deletes the request queue before the response\nqueue. qla25xx_delete_req_que() frees the request queue memory\n(kfree(req) in qla25xx_free_req_que()), but the response-queue MSI-X is\nonly released later, in qla25xx_free_rsp_que(). In that window the\nresponse interrupt can still fire, qla2xxx_msix_rsp_q() queues\nqpair-\u003eq_work, and qla_do_work() -\u003e qla24xx_process_response_queue()\ndereferences the now-freed rsp-\u003ereq (LOGINOUT/CT/ELS entries and the\nstatus path), a use-after-free.\n\nThe cancel_work_sync() added for the qpair teardown lives in the\nresponse free path, which runs after the request queue is already freed,\nso it does not protect rsp-\u003ereq.\n\nRelease the response-queue interrupt and flush qpair-\u003eq_work before\ndeleting the request queue, so no late completion can reach the freed\nrequest queue. Clearing have_irq makes the subsequent\nqla25xx_free_rsp_que() skip its free_irq(), and the firmware\nqueue-delete order (request then response) is preserved; the\nrequest-delete mailbox completes on the default vector and is unaffected\nby dropping the qpair response interrupt early.",
  "id": "CVE-2026-89848",
  "modified": "2026-09-18T03:30:51.997592694Z",
  "published": "2026-09-16T10:31:22.197Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/10e9f05f7fd0a103886a867ec8afe621fe4b906a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1486cc18be3e2b4c2a730f4a1b0448d009381b3d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/157ca7d1af45f87aa14a286754f19c3f72386988"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/505753ec2594c6af09a601f0dd60be7d840c1d2d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7ac5be2a8609679fc6bbfea881360444a5ce8202"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89848.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-89848"
    },
    {
      "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:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "scsi: qla2xxx: Quiesce response IRQ before freeing request queue"
}