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CVE-2025-40085

Estado: AplazadaSin puntuar—

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

ALSA: usb-audio: Fix NULL pointer deference in try_to_register_card

In try_to_register_card(), the return value of usb_ifnum_to_if() is passed directly to usb_interface_claimed() without a NULL check, which will lead to a NULL pointer dereference when creating an invalid USB audio device. Fix this by adding a check to ensure the interface pointer is valid before passing it to usb_interface_claimed().

CVSS

NVD no ha asignado puntuación CVSS a esta CVE (habitual desde el cambio de política de abril de 2026).

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)

⚠ 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)

Mostrar
{
  "id": "CVE-2025-40085",
  "cveTags": [],
  "metrics": {},
  "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": "28787ff9fbeaf57684eb64cc33e2ec8ceedf21b5",
              "lessThan": "736159f7b296d7a95f7208eb4799639b1f8b16a0",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "39efc9c8a973ddff5918191525d1679d0fb368ea",
              "lessThan": "8d19a7ab28c7b9c207db5c5282afa8cc8595bcdb",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "39efc9c8a973ddff5918191525d1679d0fb368ea",
              "lessThan": "576312eb436326b44b7010f4d9ae2b698df075ea",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "39efc9c8a973ddff5918191525d1679d0fb368ea",
              "lessThan": "bba7208765d26e5e36b87f21dacc2780b064f41f",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "39efc9c8a973ddff5918191525d1679d0fb368ea",
              "lessThan": "8503ac1a62075a085402e42a386b5c627c821a51",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "39efc9c8a973ddff5918191525d1679d0fb368ea",
              "lessThan": "28412b489b088fb88dff488305fd4e56bd47f6e4",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "9d4f4dc3cd38e412c29a7626489fe48b79ebbf6c",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "52076a41c128146c9df4a157e972cb17019313b1",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "5.15.75",
              "lessThan": "5.15.196",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "5.19.17",
              "lessThan": "5.20",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "6.0.3",
              "lessThan": "6.1",
              "versionType": "semver"
            }
          ],
          "programFiles": [
            "sound/usb/card.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.1"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.1",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "5.15.196",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "status": "unaffected",
              "version": "6.1.158",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.6.114",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.55",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.17.5",
              "versionType": "semver",
              "lessThanOrEqual": "6.17.*"
            },
            {
              "status": "unaffected",
              "version": "6.18",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "sound/usb/card.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2025-10-29T14:15:55.117",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/28412b489b088fb88dff488305fd4e56bd47f6e4",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/576312eb436326b44b7010f4d9ae2b698df075ea",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/736159f7b296d7a95f7208eb4799639b1f8b16a0",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/8503ac1a62075a085402e42a386b5c627c821a51",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/8d19a7ab28c7b9c207db5c5282afa8cc8595bcdb",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/bba7208765d26e5e36b87f21dacc2780b064f41f",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Deferred",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usb-audio: Fix NULL pointer deference in try_to_register_card\n\nIn try_to_register_card(), the return value of usb_ifnum_to_if() is\npassed directly to usb_interface_claimed() without a NULL check, which\nwill lead to a NULL pointer dereference when creating an invalid\nUSB audio device. Fix this by adding a check to ensure the interface\npointer is valid before passing it to usb_interface_claimed()."
    }
  ],
  "lastModified": "2026-06-17T09:21:14.337",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}