FKIE_CVE-2025-38130

Vulnerability from fkie_nvd - Published: 2025-07-03 09:15 - Updated: 2025-11-20 21:22
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: drm/connector: only call HDMI audio helper plugged cb if non-null On driver remove, sound/soc/codecs/hdmi-codec.c calls the plugged_cb with NULL as the callback function and codec_dev, as seen in its hdmi_remove function. The HDMI audio helper then happily tries calling said null function pointer, and produces an Oops as a result. Fix this by only executing the callback if fn is non-null. This means the .plugged_cb and .plugged_cb_dev members still get appropriately cleared.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/933f3eab1d489af8d734bff855b10d29dd5968a4Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/be9b3f9a54101c19226c25ba7163d291183777a0Patch
Impacted products
Vendor Product Version
linux linux_kernel *
To clipboard 

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          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "59623E70-FBCF-4F5B-A3CE-07A4482CED29",
              "versionEndExcluding": "6.15.3",
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/connector: only call HDMI audio helper plugged cb if non-null\n\nOn driver remove, sound/soc/codecs/hdmi-codec.c calls the plugged_cb\nwith NULL as the callback function and codec_dev, as seen in its\nhdmi_remove function.\n\nThe HDMI audio helper then happily tries calling said null function\npointer, and produces an Oops as a result.\n\nFix this by only executing the callback if fn is non-null. This means\nthe .plugged_cb and .plugged_cb_dev members still get appropriately\ncleared."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/connector: solo se llama al auxiliar de audio HDMI plugged cb si no es nulo. Al eliminar el controlador, sound/soc/codecs/hdmi-codec.c llama a plugged_cb con NULL como funci\u00f3n de devoluci\u00f3n de llamada y codec_dev, como se observa en su funci\u00f3n hdmi_remove. El auxiliar de audio HDMI intenta entonces llamar a dicho puntero de funci\u00f3n nulo, pero produce un error. Para solucionar esto, ejecute la devoluci\u00f3n de llamada solo si fn no es nulo. Esto significa que los miembros .plugged_cb y .plugged_cb_dev se borran correctamente."
    }
  ],
  "id": "CVE-2025-38130",
  "lastModified": "2025-11-20T21:22:16.040",
  "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"
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  "published": "2025-07-03T09:15:27.303",
  "references": [
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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      "url": "https://git.kernel.org/stable/c/933f3eab1d489af8d734bff855b10d29dd5968a4"
    },
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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