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CVE-2026-89842 (GCVE-0-2026-89842)

Vulnerability from cvelistv5 – Published: 2026-09-16 10:31 – Updated: 2026-09-16 10:31
VLAI
Title
scsi: qla2xxx: Skip NVMe LS reject IOCB when FW not started
Summary
In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Skip NVMe LS reject IOCB when FW not started qla_nvme_xmt_ls_rsp() bails out to the out: label when firmware is not started (!ha->flags.fw_started), but the out: path unconditionally calls qla_nvme_ls_reject_iocb(), which ends in qla2x00_start_iocbs() and an unconditional doorbell write to the request queue in-pointer register. This rings the firmware doorbell and queues an IOCB that stopped or resetting firmware cannot consume, and touches MMIO during the reset/EEH window where fw_started is also clear. Only emit the LS reject IOCB (and ring the doorbell) when fw_started is set; otherwise just clean up and return. The post-allocation failure cases (SRB alloc / qla2x00_start_sp() failure) run with firmware started and still send the reject. Apply the same guard to the reject emission in qla2xxx_process_purls_pkt().
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 875386b98857822b77ac7f95bdf367b70af5b78c , < 2935b730211c5c1433aa6101fa3b55df2b63869a (git)
Affected: 875386b98857822b77ac7f95bdf367b70af5b78c , < 7c1fc75dd3fb6b6414508fbdf7aeed0d757c9120 (git)
Affected: 875386b98857822b77ac7f95bdf367b70af5b78c , < ac4b019ac07844d3f67ea5e48b1d982b2170d1a7 (git)
Affected: 875386b98857822b77ac7f95bdf367b70af5b78c , < e9bfb56e2c1bda49d3c5442d824569d71eec07e2 (git)
Affected: 875386b98857822b77ac7f95bdf367b70af5b78c , < f7e46ebffc5781aab3f1f5a5d4350addbb5833f4 (git)
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Linux Linux Affected: 6.6
Unaffected: 0 , < 6.6 (semver)
Unaffected: 6.6.157 , ≤ 6.6.* (semver)
Unaffected: 6.12.110 , ≤ 6.12.* (semver)
Unaffected: 6.18.51 , ≤ 6.18.* (semver)
Unaffected: 7.2.5 , ≤ 7.2.* (semver)
Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix)
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{
  "containers": {
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/scsi/qla2xxx/qla_nvme.c"
          ],
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          ],
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          "vendor": "Linux",
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              "status": "unaffected",
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              "versionType": "semver"
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              "status": "unaffected",
              "version": "7.2.5",
              "versionType": "semver"
            },
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              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
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              "negate": false,
              "operator": "OR"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Skip NVMe LS reject IOCB when FW not started\n\nqla_nvme_xmt_ls_rsp() bails out to the out: label when firmware is not\nstarted (!ha-\u003eflags.fw_started), but the out: path unconditionally calls\nqla_nvme_ls_reject_iocb(), which ends in qla2x00_start_iocbs() and an\nunconditional doorbell write to the request queue in-pointer register.\nThis rings the firmware doorbell and queues an IOCB that stopped or\nresetting firmware cannot consume, and touches MMIO during the reset/EEH\nwindow where fw_started is also clear.\n\nOnly emit the LS reject IOCB (and ring the doorbell) when fw_started is\nset; otherwise just clean up and return. The post-allocation failure\ncases (SRB alloc / qla2x00_start_sp() failure) run with firmware started\nand still send the reject. Apply the same guard to the reject emission\nin qla2xxx_process_purls_pkt()."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-16T10:31:16.544Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
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          "url": "https://git.kernel.org/stable/c/2935b730211c5c1433aa6101fa3b55df2b63869a"
        },
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          "url": "https://git.kernel.org/stable/c/7c1fc75dd3fb6b6414508fbdf7aeed0d757c9120"
        },
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        },
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        },
        {
          "url": "https://git.kernel.org/stable/c/f7e46ebffc5781aab3f1f5a5d4350addbb5833f4"
        }
      ],
      "title": "scsi: qla2xxx: Skip NVMe LS reject IOCB when FW not started",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-89842",
    "datePublished": "2026-09-16T10:31:16.544Z",
    "dateReserved": "2026-09-11T19:38:34.770Z",
    "dateUpdated": "2026-09-16T10:31:16.544Z",
    "state": "PUBLISHED"
  },
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  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-89842",
      "date": "2026-09-17",
      "epss": "0.002",
      "percentile": "0.10117"
    },
    "microsoft_vex": {
      "current_release_date": "2026-09-17T01:12:41.000Z",
      "cve": "CVE-2026-89842",
      "id": "msrc_CVE-2026-89842",
      "initial_release_date": "2026-09-17T01:12:41.000Z",
      "product_status:known_affected": "1",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "scsi: qla2xxx: Skip NVMe LS reject IOCB when FW not started",
      "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-89842.json",
      "version": "1"
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  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.