FKIE_CVE-2025-71198

Vulnerability from fkie_nvd - Published: 2026-02-04 17:16 - Updated: 2026-06-17 10:03
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: iio: imu: st_lsm6dsx: fix iio_chan_spec for sensors without event detection The st_lsm6dsx_acc_channels array of struct iio_chan_spec has a non-NULL event_spec field, indicating support for IIO events. However, event detection is not supported for all sensors, and if userspace tries to configure accelerometer wakeup events on a sensor device that does not support them (e.g. LSM6DS0), st_lsm6dsx_write_event() dereferences a NULL pointer when trying to write to the wakeup register. Define an additional struct iio_chan_spec array whose members have a NULL event_spec field, and use this array instead of st_lsm6dsx_acc_channels for sensors without event detection capability.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4d60ffcdedfe2cdb68a1cde19bb292bc67451629
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7673167fac9323110973a3300637adba7d45de3a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/81ed6e42d6e555dd978c9dd5e3f7c20cb121221b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c34e2e2d67b3bb8d5a6d09b0d6dac845cdd13fb3
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "7673167fac9323110973a3300637adba7d45de3a",
              "status": "affected",
              "version": "b5969abfa8b8ed43ebd93479d394f664bd4a5a87",
              "versionType": "git"
            },
            {
              "lessThan": "4d60ffcdedfe2cdb68a1cde19bb292bc67451629",
              "status": "affected",
              "version": "b5969abfa8b8ed43ebd93479d394f664bd4a5a87",
              "versionType": "git"
            },
            {
              "lessThan": "81ed6e42d6e555dd978c9dd5e3f7c20cb121221b",
              "status": "affected",
              "version": "b5969abfa8b8ed43ebd93479d394f664bd4a5a87",
              "versionType": "git"
            },
            {
              "lessThan": "c34e2e2d67b3bb8d5a6d09b0d6dac845cdd13fb3",
              "status": "affected",
              "version": "b5969abfa8b8ed43ebd93479d394f664bd4a5a87",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.5"
            },
            {
              "lessThan": "5.5",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.122",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.68",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.19",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: imu: st_lsm6dsx: fix iio_chan_spec for sensors without event detection\n\nThe st_lsm6dsx_acc_channels array of struct iio_chan_spec has a non-NULL\nevent_spec field, indicating support for IIO events. However, event\ndetection is not supported for all sensors, and if userspace tries to\nconfigure accelerometer wakeup events on a sensor device that does not\nsupport them (e.g. LSM6DS0), st_lsm6dsx_write_event() dereferences a NULL\npointer when trying to write to the wakeup register.\nDefine an additional struct iio_chan_spec array whose members have a NULL\nevent_spec field, and use this array instead of st_lsm6dsx_acc_channels for\nsensors without event detection capability."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\niio: imu: st_lsm6dsx: corregir iio_chan_spec para sensores sin detecci\u00f3n de eventos\n\nEl array st_lsm6dsx_acc_channels de la estructura iio_chan_spec tiene un campo event_spec no nulo, indicando soporte para eventos IIO. Sin embargo, la detecci\u00f3n de eventos no es compatible con todos los sensores, y si el espacio de usuario intenta configurar eventos de activaci\u00f3n del aceler\u00f3metro en un dispositivo sensor que no los soporta (p. ej., LSM6DS0), st_lsm6dsx_write_event() desreferencia un puntero NULL al intentar escribir en el registro de activaci\u00f3n.\nDefinir un array adicional de la estructura iio_chan_spec cuyos miembros tienen un campo event_spec NULL, y usar este array en lugar de st_lsm6dsx_acc_channels para sensores sin capacidad de detecci\u00f3n de eventos."
    }
  ],
  "id": "CVE-2025-71198",
  "lastModified": "2026-06-17T10:03:52.233",
  "metrics": {},
  "published": "2026-02-04T17:16:11.743",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/4d60ffcdedfe2cdb68a1cde19bb292bc67451629"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/7673167fac9323110973a3300637adba7d45de3a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/81ed6e42d6e555dd978c9dd5e3f7c20cb121221b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c34e2e2d67b3bb8d5a6d09b0d6dac845cdd13fb3"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Deferred"
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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