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CVE-2026-97409

Estado: RecibidaAlta (8.8)—

In the Linux kernel, the following vulnerability has been resolved:

nvme-fc: Do not cancel requests in io target before it is initialized

A new nvme-fc controller in CONNECTING state sees admin request timeout schedules ctrl->ioerr_work to abort inflight requests. This ends up calling __nvme_fc_abort_outstanding_ios() which aborts requests in both admin and io tagsets. In case fc_ctrl->tag_set was not initialized we see the warning below. This is because ctrl.queue_count is initialized early in nvme_fc_alloc_ctrl().

Update the check in __nvme_fc_abort_outstanding_ios() confirm that io tagset was created before iterating over busy requests. Also make sure to cancel ctrl->ioerr_work before removing io tagset.

Detalles técnicos trazas, registros y código del informe original
nvme nvme0: NVME-FC{0}: starting error recovery Connectivity Loss
INFO: trying to register non-static key.
The code is fine but needs lockdep annotation, or maybe
lpfc 0000:ab:00.0: queue 0 connect admin queue failed (-6).
you didn't initialize this object before use?
turning off the locking correctness validator.
Workqueue: nvme-reset-wq nvme_fc_ctrl_ioerr_work [nvme_fc]
Call Trace:
 <TASK>
 dump_stack_lvl+0x57/0x80
 register_lock_class+0x567/0x580
 __lock_acquire+0x330/0xb90
 lock_acquire.part.0+0xad/0x210
 blk_mq_tagset_busy_iter+0xf9/0xc00
 __nvme_fc_abort_outstanding_ios+0x23f/0x320 [nvme_fc]
 nvme_fc_ctrl_ioerr_work+0x172/0x210 [nvme_fc]
 process_one_work+0x82c/0x1450
 worker_thread+0x5ee/0xfd0
 kthread+0x3a0/0x750
 ret_from_fork+0x439/0x670
 ret_from_fork_asm+0x1a/0x30
 </TASK>

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

AV:A sin privilegios sugiere servicio remoto en red adyacente (T1210). Timeout y abort de requests indican potencial DoS en aplicación (T1499.004); lockdep warning indica fallo de inicialización, no RCE confirmado.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Vulnerability ScanningThreat Intelligence ProgramPrivileged Account ManagementNetwork SegmentationFilter Network TrafficDisable or Remove Feature or Program

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Linux — Linux KernelAI

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-97409",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 8.8,
          "attackVector": "ADJACENT_NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "52793d62a696e9188092eb0817fb1219ee5729ff",
              "lessThan": "5488e2706c58444a24e15773237dcc0bedcd771f",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "52793d62a696e9188092eb0817fb1219ee5729ff",
              "lessThan": "da930308b4bc24c335574e85ca84ff70a988cf05",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "52793d62a696e9188092eb0817fb1219ee5729ff",
              "lessThan": "dd39064d2948b14dbe4f364fe4b3c9cfc632cc21",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "52793d62a696e9188092eb0817fb1219ee5729ff",
              "lessThan": "ee38469f88492df99e1d97f03aa40ecfd218934f",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/nvme/host/fc.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.10"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "5.10",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.6.158",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.111",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.53",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/nvme/host/fc.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-09-24T17:17:18.463",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/5488e2706c58444a24e15773237dcc0bedcd771f",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/da930308b4bc24c335574e85ca84ff70a988cf05",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/dd39064d2948b14dbe4f364fe4b3c9cfc632cc21",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/ee38469f88492df99e1d97f03aa40ecfd218934f",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvme-fc: Do not cancel requests in io target before it is initialized\n\nA new nvme-fc controller in CONNECTING state sees admin request timeout\nschedules ctrl->ioerr_work to abort inflight requests. This ends up\ncalling __nvme_fc_abort_outstanding_ios() which aborts requests in both\nadmin and io tagsets. In case fc_ctrl->tag_set was not initialized we\nsee the warning below. This is because ctrl.queue_count is initialized\nearly in nvme_fc_alloc_ctrl().\n\nnvme nvme0: NVME-FC{0}: starting error recovery Connectivity Loss\nINFO: trying to register non-static key.\nThe code is fine but needs lockdep annotation, or maybe\nlpfc 0000:ab:00.0: queue 0 connect admin queue failed (-6).\nyou didn't initialize this object before use?\nturning off the locking correctness validator.\nWorkqueue: nvme-reset-wq nvme_fc_ctrl_ioerr_work [nvme_fc]\nCall Trace:\n <TASK>\n dump_stack_lvl+0x57/0x80\n register_lock_class+0x567/0x580\n __lock_acquire+0x330/0xb90\n lock_acquire.part.0+0xad/0x210\n blk_mq_tagset_busy_iter+0xf9/0xc00\n __nvme_fc_abort_outstanding_ios+0x23f/0x320 [nvme_fc]\n nvme_fc_ctrl_ioerr_work+0x172/0x210 [nvme_fc]\n process_one_work+0x82c/0x1450\n worker_thread+0x5ee/0xfd0\n kthread+0x3a0/0x750\n ret_from_fork+0x439/0x670\n ret_from_fork_asm+0x1a/0x30\n </TASK>\n\nUpdate the check in __nvme_fc_abort_outstanding_ios() confirm that io\ntagset was created before iterating over busy requests. Also make sure\nto cancel ctrl->ioerr_work before removing io tagset."
    }
  ],
  "lastModified": "2026-10-03T11:17:53.063",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}