« Volver al listado

CVE-2026-68180

Estado: RecibidaSin puntuar—

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

intel_th: fix MSC output device reference leak

intel_th_output_open() looks up the output device with bus_find_device_by_devt(), which returns the device with a reference that must be dropped after use.

commit 95fc36a234da ("intel_th: fix device leak on output open()") attempted to drop the reference from intel_th_output_release(). However, a successful open replaces file->f_op with the output driver file operations before returning, so close runs the output driver release callback instead.

For MSC outputs, close runs intel_th_msc_release(), which only removes the per-file iterator and does not drop the device reference taken by intel_th_output_open(). Consequently, every successful MSC output open leaks one device reference.

Leer descripción completaMostrar menos

Drop the device reference from intel_th_msc_release(), which is the release path actually used for MSC output files. Remove the now-unused intel_th_output_release() callback from intel_th_output_fops.

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-2026-68180",
  "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": "af4b9467296b9a16ebc008147238070236982b6d",
              "lessThan": "12ad4fad748e6e563ff4480f03b89134a41b5c37",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "64015cbf06e8bb75b81ae95b997e847b55280f7f",
              "lessThan": "df55842fddbcdb80e6dd16680439c0f780ed592e",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "b71e64ef7ff9443835d1333e3e80ab1e49e5209f",
              "lessThan": "141641a70ed337e54487f766ede745fc2ce44c42",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "bf7785434b5d05d940d936b78925080950bd54dd",
              "lessThan": "ddcf2064d7ec5a8c9afa7cb74442320e443502bc",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "0fca16c5591534cc1fec8b6181277ee3a3d0f26c",
              "lessThan": "26e27b8dcef1e4df6f30d8f25b3304a506d482b3",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "f9b059bda4276f2bb72cb98ec7875a747f042ea2",
              "lessThan": "caba30eb8bd321c465ecfc7d850ee85f5b353496",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "95fc36a234da24bbc5f476f8104a5a15f99ed3e3",
              "lessThan": "c3a28f9cb82425fe0835048ed3677f321e780691",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "95fc36a234da24bbc5f476f8104a5a15f99ed3e3",
              "lessThan": "761b785a0cfbce43761227bc42a7f984f31f8921",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "5.10.249",
              "lessThan": "5.10.265",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "5.15.199",
              "lessThan": "5.15.216",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "6.1.162",
              "lessThan": "6.1.183",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "6.6.122",
              "lessThan": "6.6.148",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "6.12.68",
              "lessThan": "6.12.101",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "6.18.8",
              "lessThan": "6.18.42",
              "versionType": "semver"
            }
          ],
          "programFiles": [
            "drivers/hwtracing/intel_th/core.c",
            "drivers/hwtracing/intel_th/msu.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.19"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.19",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "5.10.265",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "status": "unaffected",
              "version": "5.15.216",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "status": "unaffected",
              "version": "6.1.183",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.6.148",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.101",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.42",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.1.6",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/hwtracing/intel_th/core.c",
            "drivers/hwtracing/intel_th/msu.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-08-10T13:20:04.967",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/12ad4fad748e6e563ff4480f03b89134a41b5c37",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/141641a70ed337e54487f766ede745fc2ce44c42",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/26e27b8dcef1e4df6f30d8f25b3304a506d482b3",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/761b785a0cfbce43761227bc42a7f984f31f8921",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/c3a28f9cb82425fe0835048ed3677f321e780691",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/caba30eb8bd321c465ecfc7d850ee85f5b353496",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/ddcf2064d7ec5a8c9afa7cb74442320e443502bc",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/df55842fddbcdb80e6dd16680439c0f780ed592e",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nintel_th: fix MSC output device reference leak\n\nintel_th_output_open() looks up the output device with\nbus_find_device_by_devt(), which returns the device with a reference that\nmust be dropped after use.\n\ncommit 95fc36a234da (\"intel_th: fix device leak on output open()\")\nattempted to drop the reference from intel_th_output_release(). However,\na successful open replaces file->f_op with the output driver file\noperations before returning, so close runs the output driver release\ncallback instead.\n\nFor MSC outputs, close runs intel_th_msc_release(), which only removes\nthe per-file iterator and does not drop the device reference taken by\nintel_th_output_open(). Consequently, every successful MSC output open\nleaks one device reference.\n\nDrop the device reference from intel_th_msc_release(), which is the\nrelease path actually used for MSC output files. Remove the now-unused\nintel_th_output_release() callback from intel_th_output_fops."
    }
  ],
  "lastModified": "2026-08-19T17:20:34.203",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}