{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "f6145e86d21fccd59bbb87bc1e1eb076658fd79a"
            },
            {
              "fixed": "71a7b6e3c7f121439f51a058e53d4a8e05b63dec"
            },
            {
              "fixed": "7257b5e1fb6c9387714f66e01b79ec82b717eede"
            },
            {
              "fixed": "f5b660e0b0d9190d8853c795c2522cc5f8c93003"
            },
            {
              "fixed": "6e217a9482eabbd8b29847be334c74cf468d3544"
            },
            {
              "fixed": "d6d856c722f40f0694ff755208552e658db6dd42"
            },
            {
              "fixed": "9fa1d71233a82416492d9c9de9756ebe140fe714"
            },
            {
              "fixed": "845d4abd92cd2f97551356c8b281ad6e197acb07"
            },
            {
              "fixed": "bb45bc4bd53c95a7bf6f782577b5ede94c0f8aa8"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.19.0"
            },
            {
              "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-2026-89847.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Avoid double completion in async IOCB timeout\n\nqla2x00_async_iocb_timeout() tries to abort a timed-out async IOCB. When\nqla24xx_async_abort_cmd() fails, both the SRB_LOGIN_CMD path and the\nSRB_CTRL_VP/default path scan outstanding_cmds[] for the SRB and then\ncall sp-\u003edone(sp, QLA_FUNCTION_TIMEOUT) unconditionally, without checking\nwhether the SRB was actually found and removed.\n\nIf the response ISR completes the same handle first, it removes the SRB\nunder qp_lock_ptr and runs sp-\u003edone() -\u003e complete(sp-\u003ecomp). The\nsubmitter qla24xx_control_vp() wakes from wait_for_completion(), clears\nsp-\u003ecomp, drops its reference and returns, reclaiming the on-stack\ncompletion. The timer reference keeps the SRB alive across the timeout\nhandler, but not the submitter's stack. The timeout then issues a second\nsp-\u003edone() -\u003e qla_ctrlvp_sp_done(), which evaluates \"if (sp-\u003ecomp)\ncomplete(sp-\u003ecomp)\"; with the pointer loaded before the submitter's NULL\nstore, complete() writes into the freed stack frame, a use-after-free.\n\nTrack whether this path removed the SRB from outstanding_cmds and only\ncall sp-\u003edone() when it did, so the command is completed exactly once by\nwhichever path owns it. This mirrors the sp_found guard already used in\nqla24xx_abort_iocb_timeout().",
  "id": "CVE-2026-89847",
  "modified": "2026-09-18T03:30:17.145016198Z",
  "published": "2026-09-16T10:31:21.286Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6e217a9482eabbd8b29847be334c74cf468d3544"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/71a7b6e3c7f121439f51a058e53d4a8e05b63dec"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7257b5e1fb6c9387714f66e01b79ec82b717eede"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/845d4abd92cd2f97551356c8b281ad6e197acb07"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9fa1d71233a82416492d9c9de9756ebe140fe714"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bb45bc4bd53c95a7bf6f782577b5ede94c0f8aa8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d6d856c722f40f0694ff755208552e658db6dd42"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f5b660e0b0d9190d8853c795c2522cc5f8c93003"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89847.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-89847"
    },
    {
      "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:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "scsi: qla2xxx: Avoid double completion in async IOCB timeout"
}