FKIE_CVE-2025-38648

Vulnerability from fkie_nvd - Published: 2025-08-22 16:15 - Updated: 2025-11-26 16:27
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: spi: stm32: Check for cfg availability in stm32_spi_probe The stm32_spi_probe function now includes a check to ensure that the pointer returned by of_device_get_match_data is not NULL before accessing its members. This resolves a warning where a potential NULL pointer dereference could occur when accessing cfg->has_device_mode. Before accessing the 'has_device_mode' member, we verify that 'cfg' is not NULL. If 'cfg' is NULL, an error message is logged. This change ensures that the driver does not attempt to access configuration data if it is not available, thus preventing a potential system crash due to a NULL pointer dereference.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/21f1c800f6620e43f31dfd76709dbac8ebaa5a16Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3a571a8d52272cc26858ab1bc83d0f66e5dee938Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6031a54f4eac921efe6122a561d44df89b37f2d4Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a7645815edf4478f3258bb0db95a08986a77f5c0Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cc063d23ad80ef7d201c41b2716b1bae7c662cf9Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "776B5900-5E45-49F9-A731-D305084553EB",
              "versionEndExcluding": "6.6.102",
              "versionStartIncluding": "6.6",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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          "negate": false,
          "operator": "OR"
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nspi: stm32: Check for cfg availability in stm32_spi_probe\n\nThe stm32_spi_probe function now includes a check to ensure that the\npointer returned by of_device_get_match_data is not NULL before\naccessing its members. This resolves a warning where a potential NULL\npointer dereference could occur when accessing cfg-\u003ehas_device_mode.\n\nBefore accessing the \u0027has_device_mode\u0027 member, we verify that \u0027cfg\u0027 is\nnot NULL. If \u0027cfg\u0027 is NULL, an error message is logged.\n\nThis change ensures that the driver does not attempt to access\nconfiguration data if it is not available, thus preventing a potential\nsystem crash due to a NULL pointer dereference."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: spi: stm32: Comprobar la disponibilidad de cfg en stm32_spi_probe La funci\u00f3n stm32_spi_probe ahora incluye una comprobaci\u00f3n para garantizar que el puntero devuelto por of_device_get_match_data no sea NULL antes de acceder a sus miembros. Esto resuelve una advertencia donde podr\u00eda ocurrir una posible desreferencia de puntero NULL al acceder a cfg-\u0026gt;has_device_mode. Antes de acceder al miembro \u0027has_device_mode\u0027, verificamos que \u0027cfg\u0027 no sea NULL. Si \u0027cfg\u0027 es NULL, se registra un mensaje de error. Este cambio garantiza que el controlador no intente acceder a los datos de configuraci\u00f3n si no est\u00e1n disponibles, previniendo as\u00ed un posible fallo del sistema debido a una desreferencia de puntero NULL."
    }
  ],
  "id": "CVE-2025-38648",
  "lastModified": "2025-11-26T16:27:38.400",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2025-08-22T16:15:39.480",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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      "tags": [
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      "tags": [
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      "tags": [
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      "url": "https://git.kernel.org/stable/c/cc063d23ad80ef7d201c41b2716b1bae7c662cf9"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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