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CVE-2026-23197

Estado: AnalizadaMedia (5.5)—

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

i2c: imx: preserve error state in block data length handler

When a block read returns an invalid length, zero or >I2C_SMBUS_BLOCK_MAX, the length handler sets the state to IMX_I2C_STATE_FAILED. However, i2c_imx_master_isr() unconditionally overwrites this with IMX_I2C_STATE_READ_CONTINUE, causing an endless read loop that overruns buffers and crashes the system.

Guard the state transition to preserve error states set by the length handler.

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).

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

Referencias

JSON original (NVD)

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  "cveTags": [],
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        "type": "Primary",
        "source": "nvd@nist.gov",
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          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.8
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          "vendor": "Linux",
          "product": "Linux",
          "versions": [
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          "programFiles": [
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          "defaultStatus": "unaffected"
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        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
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              "version": "6.13"
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              "version": "0",
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              "version": "6.18.10",
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          "programFiles": [
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          "defaultStatus": "affected"
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  "published": "2026-02-14T17:15:57.540",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/3f9b508b3eecc00a243edf320bd83834d6a9b482",
      "tags": [
        "Patch"
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ]
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ni2c: imx: preserve error state in block data length handler\n\nWhen a block read returns an invalid length, zero or >I2C_SMBUS_BLOCK_MAX,\nthe length handler sets the state to IMX_I2C_STATE_FAILED. However,\ni2c_imx_master_isr() unconditionally overwrites this with\nIMX_I2C_STATE_READ_CONTINUE, causing an endless read loop that overruns\nbuffers and crashes the system.\n\nGuard the state transition to preserve error states set by the length\nhandler."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ni2c: imx: preservar el estado de error en el manejador de longitud de datos de bloque\n\nCuando una lectura de bloque devuelve una longitud no válida, cero o >I2C_SMBUS_BLOCK_MAX, el manejador de longitud establece el estado a IMX_I2C_STATE_FAILED. Sin embargo, i2c_imx_master_isr() sobrescribe incondicionalmente esto con IMX_I2C_STATE_READ_CONTINUE, causando un bucle de lectura infinito que desborda los búferes y bloquea el sistema.\n\nProteger la transición de estado para preservar los estados de error establecidos por el manejador de longitud."
    }
  ],
  "lastModified": "2026-06-17T10:21:04.830",
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