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CVE-2026-72214

Estado: RecibidaSin puntuar—

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

power: supply: cpcap-battery: Fix missing nvmem_device_put() causing reference leak

In cpcap_battery_detect_battery_type(), the reference to an nvmem device obtained via nvmem_device_find() is not released with nvmem_device_put() on the success or read-failure paths, causing a permanent reference leak. The driver’s retry logic on subsequent battery property reads can compound this leak, preventing the nvmem device from ever being freed.

Found by code review.

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-2026-72214",
  "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": "fd46821e85de90fb5b7356251164af4815b6e3f6",
              "lessThan": "fc65520fe0781a1ff46631f111e07b4a1c677b96",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "fd46821e85de90fb5b7356251164af4815b6e3f6",
              "lessThan": "700c225d829a1256b59053c34a1a9d1a6ab70b09",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "fd46821e85de90fb5b7356251164af4815b6e3f6",
              "lessThan": "deaf6b3f8187231ad8f7770b10ed0be2cd47e9b2",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "fd46821e85de90fb5b7356251164af4815b6e3f6",
              "lessThan": "a3d81de441233a92ec21469cd0c4eb3c26b95cd8",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "fd46821e85de90fb5b7356251164af4815b6e3f6",
              "lessThan": "b56a5cbf8f1f1a5740f1137c89b14d0373309d8d",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "fd46821e85de90fb5b7356251164af4815b6e3f6",
              "lessThan": "a2c14ff63e0e02e3c832385e523e9cc81301171c",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/power/supply/cpcap-battery.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.18"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "5.18",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.1.178",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.6.145",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.97",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.40",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/power/supply/cpcap-battery.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-08-15T06:21:40.130",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/700c225d829a1256b59053c34a1a9d1a6ab70b09",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/a2c14ff63e0e02e3c832385e523e9cc81301171c",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/a3d81de441233a92ec21469cd0c4eb3c26b95cd8",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b56a5cbf8f1f1a5740f1137c89b14d0373309d8d",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/deaf6b3f8187231ad8f7770b10ed0be2cd47e9b2",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/fc65520fe0781a1ff46631f111e07b4a1c677b96",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npower: supply: cpcap-battery: Fix missing nvmem_device_put() causing reference leak\n\nIn cpcap_battery_detect_battery_type(), the reference to an nvmem\ndevice obtained via nvmem_device_find() is not released with\nnvmem_device_put() on the success or read-failure paths, causing a\npermanent reference leak. The driver’s retry logic on subsequent\nbattery property reads can compound this leak, preventing the nvmem\ndevice from ever being freed.\n\nFound by code review."
    }
  ],
  "lastModified": "2026-08-17T06:18:22.370",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}