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CVE-2025-40344

Estado: AplazadaAlta (7.8)—

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

ASoC: Intel: avs: Disable periods-elapsed work when closing PCM

avs_dai_fe_shutdown() handles the shutdown procedure for HOST HDAudio stream while period-elapsed work services its IRQs. As the former frees the DAI's private context, these two operations shall be synchronized to avoid slab-use-after-free or worse errors.

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:L/PR:L sin UI permite escalada local desde contexto no privilegiado. Race condition en liberación de memoria (slab-use-after-free) causa DoS o corrupción de datos en kernel ASoC/Intel.

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

Threat Intelligence ProgramRestrict File and Directory PermissionsRemote Data StorageFilter Network TrafficExecution PreventionEncrypt Sensitive Information

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)

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{
  "id": "CVE-2025-40344",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "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": "0dbb186c3510cad4e9f443e801bf2e6ab5770c00",
              "lessThan": "ca6d2b7aca778afbf8c0c4b330d10cb228c14052",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "0dbb186c3510cad4e9f443e801bf2e6ab5770c00",
              "lessThan": "b41fca4aa60be896ba8a81b57aac5dcc6eee66c0",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "0dbb186c3510cad4e9f443e801bf2e6ab5770c00",
              "lessThan": "845f716dc5f354c719f6fda35048b6c2eca99331",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "31087af37d6b1586b76d4acf3e0c1634a4617ba6",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "6.11.9",
              "lessThan": "6.12",
              "versionType": "semver"
            }
          ],
          "programFiles": [
            "sound/soc/intel/avs/pcm.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.12"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.12",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.12.58",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.17.8",
              "versionType": "semver",
              "lessThanOrEqual": "6.17.*"
            },
            {
              "status": "unaffected",
              "version": "6.18",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "sound/soc/intel/avs/pcm.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2025-12-09T16:17:44.777",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/845f716dc5f354c719f6fda35048b6c2eca99331",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b41fca4aa60be896ba8a81b57aac5dcc6eee66c0",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/ca6d2b7aca778afbf8c0c4b330d10cb228c14052",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Deferred",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: Intel: avs: Disable periods-elapsed work when closing PCM\n\navs_dai_fe_shutdown() handles the shutdown procedure for HOST HDAudio\nstream while period-elapsed work services its IRQs. As the former\nfrees the DAI's private context, these two operations shall be\nsynchronized to avoid slab-use-after-free or worse errors."
    }
  ],
  "lastModified": "2026-07-30T06:24:30.537",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}