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CVE-2025-37866

Estado: AnalizadaMedia (5.5)—

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

mlxbf-bootctl: use sysfs_emit_at() in secure_boot_fuse_state_show()

The warning is triggered because the mlxbf-bootctl driver invokes "sysfs_emit()" with a buffer pointer that is not aligned to the start of the page. The driver should instead use "sysfs_emit_at()" to support non-zero offsets into the destination buffer.

Detalles técnicos trazas, registros y código del informe original
A warning is seen when running the latest kernel on a BlueField SOC:
[251.512704] ------------[ cut here ]------------
[251.512711] invalid sysfs_emit: buf:0000000003aa32ae
[251.512720] WARNING: CPU: 1 PID: 705264 at fs/sysfs/file.c:767 sysfs_emit+0xac/0xc8

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).

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2025-37866",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "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": "9886f575de5aefcfab537467c72e5176e5301df0",
              "lessThan": "5e1dcc5bfd7a2896178c604bc69d6ab9650967da",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "9886f575de5aefcfab537467c72e5176e5301df0",
              "lessThan": "b129005ddfc0e6daf04a6d3b928a9e474f9b3918",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/platform/mellanox/mlxbf-bootctl.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.14"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.14",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.14.4",
              "versionType": "semver",
              "lessThanOrEqual": "6.14.*"
            },
            {
              "status": "unaffected",
              "version": "6.15",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/platform/mellanox/mlxbf-bootctl.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2025-05-09T07:16:07.647",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/5e1dcc5bfd7a2896178c604bc69d6ab9650967da",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b129005ddfc0e6daf04a6d3b928a9e474f9b3918",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmlxbf-bootctl: use sysfs_emit_at() in secure_boot_fuse_state_show()\n\nA warning is seen when running the latest kernel on a BlueField SOC:\n[251.512704] ------------[ cut here ]------------\n[251.512711] invalid sysfs_emit: buf:0000000003aa32ae\n[251.512720] WARNING: CPU: 1 PID: 705264 at fs/sysfs/file.c:767 sysfs_emit+0xac/0xc8\n\nThe warning is triggered because the mlxbf-bootctl driver invokes\n\"sysfs_emit()\" with a buffer pointer that is not aligned to the\nstart of the page. The driver should instead use \"sysfs_emit_at()\"\nto support non-zero offsets into the destination buffer."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: mlxbf-bootctl: use sysfs_emit_at() en secure_boot_fuse_state_show() Se ve una advertencia al ejecutar el kernel más reciente en un SOC BlueField: [251.512704] ------------[ cortar aquí ]------------ [251.512711] sysfs_emit no válido: buf:0000000003aa32ae [251.512720] ADVERTENCIA: CPU: 1 PID: 705264 en fs/sysfs/file.c:767 sysfs_emit+0xac/0xc8 La advertencia se activa porque el controlador mlxbf-bootctl invoca \"sysfs_emit()\" con un puntero de búfer que no está alineado con el inicio de la página. En su lugar, el controlador debería utilizar \"sysfs_emit_at()\" para admitir desplazamientos distintos de cero en el búfer de destino."
    }
  ],
  "lastModified": "2026-06-17T09:15:35.860",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "5722F93B-F696-460E-B30C-6757CB22FAB4",
              "versionEndExcluding": "6.14.4",
              "versionStartIncluding": "6.14"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.15:rc1:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "8D465631-2980-487A-8E65-40AE2B9F8ED1"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.15:rc2:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "4C9D071F-B28E-46EC-AC61-22B913390211"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}