« Volver al listado

CVE-2025-38330

Estado: AnalizadaAlta (7.1)—

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

firmware: cs_dsp: Fix OOB memory read access in KUnit test (ctl cache)

KASAN reported out of bounds access - cs_dsp_ctl_cache_init_multiple_offsets(). The code uses mock_coeff_template.length_bytes (4 bytes) for register value allocations. But later, this length is set to 8 bytes which causes test code failures.

As fix, just remove the lenght override, keeping the original value 4 for all operations.

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.

Acceso local (AV:L) sin interacción (UI:N) con privilegios (PR:L) en Linux kernel; OOB read puede permitir escalada o ejecución de código. CWE-125 (lectura fuera de límites) en contexto de kernel.

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

Execution PreventionThreat Intelligence ProgramRestrict Web-Based ContentPrivileged Account ManagementLimit Software InstallationBehavior Prevention on Endpoint

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2025-38330",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.1,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.2,
        "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": "9b33a4fc500cedc1adc9c0ee01e30ffd50e5887a",
              "lessThan": "e3dafc64b90546eb769f33333afabd9e3e915757",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "9b33a4fc500cedc1adc9c0ee01e30ffd50e5887a",
              "lessThan": "f4ba2ea57da51d616b689c4b8826c517ff5a8523",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/firmware/cirrus/test/cs_dsp_test_control_cache.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": "6.15.4",
              "versionType": "semver",
              "lessThanOrEqual": "6.15.*"
            },
            {
              "status": "unaffected",
              "version": "6.16",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/firmware/cirrus/test/cs_dsp_test_control_cache.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2025-07-10T09:15:27.363",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/e3dafc64b90546eb769f33333afabd9e3e915757",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/f4ba2ea57da51d616b689c4b8826c517ff5a8523",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: cs_dsp: Fix OOB memory read access in KUnit test (ctl cache)\n\nKASAN reported out of bounds access - cs_dsp_ctl_cache_init_multiple_offsets().\nThe code uses mock_coeff_template.length_bytes (4 bytes) for register value\nallocations. But later, this length is set to 8 bytes which causes\ntest code failures.\n\nAs fix, just remove the lenght override, keeping the original value 4\nfor all operations."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: firmware: cs_dsp: Se corrige el acceso de lectura a memoria fuera de los límites en la prueba KUnit (caché CTL). KASAN reportó un acceso fuera de los límites: cs_dsp_ctl_cache_init_multiple_offsets(). El código usa mock_coeff_template.length_bytes (4 bytes) para la asignación de valores de registro. Sin embargo, posteriormente, esta longitud se establece en 8 bytes, lo que provoca fallos en el código de prueba. Como solución, simplemente elimine la anulación de longitud, manteniendo el valor original de 4 para todas las operaciones."
    }
  ],
  "lastModified": "2026-06-17T09:16:38.290",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "EB98F717-3605-46C2-9C91-090FC912082A",
              "versionEndExcluding": "6.15.4",
              "versionStartIncluding": "6.14"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}