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CVE-2025-38041

Estado: AnalizadaMedia (5.5)—

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

clk: sunxi-ng: h616: Reparent GPU clock during frequency changes

The H616 manual does not state that the GPU PLL supports dynamic frequency configuration, so we must take extra care when changing the frequency. Currently any attempt to do device DVFS on the GPU lead to panfrost various ooops, and GPU hangs.

The manual describes the algorithm for changing the PLL frequency, which the CPU PLL notifier code already support, so we reuse that to reparent the GPU clock to GPU1 clock during frequency changes.

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-2025-38041",
  "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": "88dde5e23da1a16fe9a417171e6c941736b8d3a6",
              "lessThan": "1439673b78185eaaa5fae444b3a9d58c434ee78e",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "88dde5e23da1a16fe9a417171e6c941736b8d3a6",
              "lessThan": "eb963d7948ce6571939c6875424b557b25f16610",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/clk/sunxi-ng/ccu-sun50i-h616.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.12"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "5.12",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.14.9",
              "versionType": "semver",
              "lessThanOrEqual": "6.14.*"
            },
            {
              "status": "unaffected",
              "version": "6.15",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/clk/sunxi-ng/ccu-sun50i-h616.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2025-06-18T10:15:36.533",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/1439673b78185eaaa5fae444b3a9d58c434ee78e",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/eb963d7948ce6571939c6875424b557b25f16610",
      "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\nclk: sunxi-ng: h616: Reparent GPU clock during frequency changes\n\nThe H616 manual does not state that the GPU PLL supports\ndynamic frequency configuration, so we must take extra care when changing\nthe frequency. Currently any attempt to do device DVFS on the GPU lead\nto panfrost various ooops, and GPU hangs.\n\nThe manual describes the algorithm for changing the PLL\nfrequency, which the CPU PLL notifier code already support, so we reuse\nthat to reparent the GPU clock to GPU1 clock during frequency\nchanges."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: clk: sunxi-ng: h616: Reasignación del reloj de la GPU durante cambios de frecuencia. El manual de H616 no indica que el PLL de la GPU admita la configuración dinámica de frecuencia, por lo que debemos tener especial cuidado al cambiarla. Actualmente, cualquier intento de realizar la configuración dinámica de frecuencia (DVFS) del dispositivo en la GPU provoca varios errores de panfrost y bloqueos de la GPU. El manual describe el algoritmo para cambiar la frecuencia del PLL, que ya es compatible con el código del notificador del PLL de la CPU, por lo que lo reutilizamos para reasignar el reloj de la GPU al reloj de la GPU1 durante los cambios de frecuencia."
    }
  ],
  "lastModified": "2026-06-17T09:15:56.243",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "77E9095E-F219-488D-B19D-B194A129A9D6",
              "versionEndExcluding": "6.14.9"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}