FKIE_CVE-2026-23376

Vulnerability from fkie_nvd - Published: 2026-03-25 11:16 - Updated: 2026-11-05 22:18
Severity
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: nvmet-fcloop: Check remoteport port_state before calling done callback In nvme_fc_handle_ls_rqst_work, the lsrsp->done callback is only set when remoteport->port_state is FC_OBJSTATE_ONLINE. Otherwise, the nvme_fc_xmt_ls_rsp's LLDD call to lport->ops->xmt_ls_rsp is expected to fail and the nvme-fc transport layer itself will directly call nvme_fc_xmt_ls_rsp_free instead of relying on LLDD's done callback to free the lsrsp resources. Update the fcloop_t2h_xmt_ls_rsp routine to check remoteport->port_state. If online, then lsrsp->done callback will free the lsrsp. Else, return -ENODEV to signal the nvme-fc transport to handle freeing lsrsp.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/31d3817bcd9e192b30abe3cf4b68f69d48864dd2Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/dd677d0598387ea623820ab2bd0e029c377445a3Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f30b95159a53e72529a9ca1667f11cd1970240a7Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.18
linux linux_kernel 7.0
linux linux_kernel 7.0
linux linux_kernel 7.0
linux linux_kernel 7.0
linux linux_kernel 7.0
linux linux_kernel 7.0
linux linux_kernel 7.0
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/nvme/target/fcloop.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "f30b95159a53e72529a9ca1667f11cd1970240a7",
              "status": "affected",
              "version": "10c165af35d225eb033f4edc7fcc699a8d2d533d",
              "versionType": "git"
            },
            {
              "lessThan": "31d3817bcd9e192b30abe3cf4b68f69d48864dd2",
              "status": "affected",
              "version": "10c165af35d225eb033f4edc7fcc699a8d2d533d",
              "versionType": "git"
            },
            {
              "lessThan": "dd677d0598387ea623820ab2bd0e029c377445a3",
              "status": "affected",
              "version": "10c165af35d225eb033f4edc7fcc699a8d2d533d",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "2cf857075bcc8e83c4aa5fe7d8f1efd6af51e04e",
              "versionType": "git"
            },
            {
              "lessThan": "6.18",
              "status": "affected",
              "version": "6.17.3",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/nvme/target/fcloop.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.18"
            },
            {
              "lessThan": "6.18",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.17",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
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              "matchCriteriaId": "01823571-21C8-47A7-A81B-D79D8F3C5262",
              "versionEndExcluding": "6.18",
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              "vulnerable": true
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              "versionStartIncluding": "6.18.1",
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            },
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              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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              "matchCriteriaId": "DCE57113-2223-4308-A0F2-5E6ECFBB3C23",
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              "vulnerable": true
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              "vulnerable": true
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          ],
          "negate": false,
          "operator": "OR"
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      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvmet-fcloop: Check remoteport port_state before calling done callback\n\nIn nvme_fc_handle_ls_rqst_work, the lsrsp-\u003edone callback is only set when\nremoteport-\u003eport_state is FC_OBJSTATE_ONLINE.  Otherwise, the\nnvme_fc_xmt_ls_rsp\u0027s LLDD call to lport-\u003eops-\u003exmt_ls_rsp is expected to\nfail and the nvme-fc transport layer itself will directly call\nnvme_fc_xmt_ls_rsp_free instead of relying on LLDD\u0027s done callback to free\nthe lsrsp resources.\n\nUpdate the fcloop_t2h_xmt_ls_rsp routine to check remoteport-\u003eport_state.\nIf online, then lsrsp-\u003edone callback will free the lsrsp.  Else, return\n-ENODEV to signal the nvme-fc transport to handle freeing lsrsp."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nnvmet-fcloop: Verificar el estado del puerto de remoteport antes de llamar a la funci\u00f3n de devoluci\u00f3n de llamada \u0027done\u0027\n\nEn nvme_fc_handle_ls_rqst_work, la funci\u00f3n de devoluci\u00f3n de llamada lsrsp-\u0026gt;done solo se establece cuando el estado del puerto de remoteport es FC_OBJSTATE_ONLINE. De lo contrario, se espera que la llamada LLDD de nvme_fc_xmt_ls_rsp a lport-\u0026gt;ops-\u0026gt;xmt_ls_rsp falle y la propia capa de transporte nvme-fc llamar\u00e1 directamente a nvme_fc_xmt_ls_rsp_free en lugar de depender de la funci\u00f3n de devoluci\u00f3n de llamada \u0027done\u0027 de LLDD para liberar los recursos de lsrsp.\n\nActualizar la rutina fcloop_t2h_xmt_ls_rsp para verificar el estado del puerto de remoteport. Si est\u00e1 en l\u00ednea, entonces la funci\u00f3n de devoluci\u00f3n de llamada lsrsp-\u0026gt;done liberar\u00e1 el lsrsp. De lo contrario, devolver -ENODEV para indicar al transporte nvme-fc que se encargue de liberar lsrsp."
    }
  ],
  "id": "CVE-2026-23376",
  "lastModified": "2026-11-05T22:18:18.810",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-23376",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-11-05T21:28:56.244322Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-03-25T11:16:37.383",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/31d3817bcd9e192b30abe3cf4b68f69d48864dd2"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/dd677d0598387ea623820ab2bd0e029c377445a3"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/f30b95159a53e72529a9ca1667f11cd1970240a7"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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