CVE-2026-89842 (GCVE-0-2026-89842)
Vulnerability from cvelistv5
Published
2026-09-16 10:31
Modified
2026-10-19 08:53
Severity ?
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().
References
Impacted products
Vendor Product Version
Linux Linux Version: 875386b98857822b77ac7f95bdf367b70af5b78c
Version: 875386b98857822b77ac7f95bdf367b70af5b78c
Version: 875386b98857822b77ac7f95bdf367b70af5b78c
Version: 875386b98857822b77ac7f95bdf367b70af5b78c
Version: 875386b98857822b77ac7f95bdf367b70af5b78c
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/scsi/qla2xxx/qla_nvme.c"
          ],
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          ]
        },
        {
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          "product": "Linux",
          "programFiles": [
            "drivers/scsi/qla2xxx/qla_nvme.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.6"
            },
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              "version": "0",
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              "status": "unaffected",
              "version": "6.6.157",
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              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.51",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
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                },
                {
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                },
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              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "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": "2026-10-19T08:53:35.290Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/2935b730211c5c1433aa6101fa3b55df2b63869a"
        },
        {
          "url": "https://git.kernel.org/stable/c/7c1fc75dd3fb6b6414508fbdf7aeed0d757c9120"
        },
        {
          "url": "https://git.kernel.org/stable/c/ac4b019ac07844d3f67ea5e48b1d982b2170d1a7"
        },
        {
          "url": "https://git.kernel.org/stable/c/e9bfb56e2c1bda49d3c5442d824569d71eec07e2"
        },
        {
          "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": "2026-10-19T08:53:35.290Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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