fkie_cve-2024-42089
Vulnerability from fkie_nvd
Published
2024-07-29 17:15
Modified
2025-02-03 15:23
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: ASoC: fsl-asoc-card: set priv->pdev before using it priv->pdev pointer was set after being used in fsl_asoc_card_audmux_init(). Move this assignment at the start of the probe function, so sub-functions can correctly use pdev through priv. fsl_asoc_card_audmux_init() dereferences priv->pdev to get access to the dev struct, used with dev_err macros. As priv is zero-initialised, there would be a NULL pointer dereference. Note that if priv->dev is dereferenced before assignment but never used, for example if there is no error to be printed, the driver won't crash probably due to compiler optimisations.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/29bc9e7c75398b0d12fc30955f2e9b2dd29ffaedPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3662eb2170e59b58ad479982dc1084889ba757b9Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/544ab46b7ece6d6bebbdee5d5659c0a0f804a99aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7c18b4d89ff9c810b6e562408afda5ce165c4ea6Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8896e18b7c366f8faf9344abfd0971435f1c723aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8faf91e58425c2f6ce773250dfd995f1c2d461acPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/90f3feb24172185f1832636264943e8b5e289245Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ae81535ce2503aabc4adab3472f4338070cdeb6aPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/29bc9e7c75398b0d12fc30955f2e9b2dd29ffaedPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/3662eb2170e59b58ad479982dc1084889ba757b9Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/544ab46b7ece6d6bebbdee5d5659c0a0f804a99aPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/7c18b4d89ff9c810b6e562408afda5ce165c4ea6Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/8896e18b7c366f8faf9344abfd0971435f1c723aPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/8faf91e58425c2f6ce773250dfd995f1c2d461acPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/90f3feb24172185f1832636264943e8b5e289245Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/ae81535ce2503aabc4adab3472f4338070cdeb6aPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.10
linux linux_kernel 6.10
linux linux_kernel 6.10
linux linux_kernel 6.10
linux linux_kernel 6.10


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
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          "negate": false,
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      ]
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: fsl-asoc-card: set priv-\u003epdev before using it\n\npriv-\u003epdev pointer was set after being used in\nfsl_asoc_card_audmux_init().\nMove this assignment at the start of the probe function, so\nsub-functions can correctly use pdev through priv.\n\nfsl_asoc_card_audmux_init() dereferences priv-\u003epdev to get access to the\ndev struct, used with dev_err macros.\nAs priv is zero-initialised, there would be a NULL pointer dereference.\nNote that if priv-\u003edev is dereferenced before assignment but never used,\nfor example if there is no error to be printed, the driver won\u0027t crash\nprobably due to compiler optimisations."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ASoC: fsl-asoc-card: establezca priv-\u0026gt;pdev antes de usarlo. El puntero priv-\u0026gt;pdev se configur\u00f3 despu\u00e9s de usarse en fsl_asoc_card_audmux_init(). Mueva esta asignaci\u00f3n al inicio de la funci\u00f3n de sonda, para que las subfunciones puedan usar correctamente pdev a trav\u00e9s de priv. fsl_asoc_card_audmux_init() elimina la referencia a priv-\u0026gt;pdev para obtener acceso a la estructura dev, utilizada con las macros dev_err. Como priv est\u00e1 inicializado en cero, habr\u00eda una desreferencia del puntero NULL. Tenga en cuenta que si se elimina la referencia a priv-\u0026gt;dev antes de la asignaci\u00f3n pero nunca se usa, por ejemplo, si no hay ning\u00fan error que imprimir, el controlador nofallar\u00e1 probablemente debido a las optimizaciones del compilador."
    }
  ],
  "id": "CVE-2024-42089",
  "lastModified": "2025-02-03T15:23:12.347",
  "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": "2024-07-29T17:15:11.520",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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    },
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  "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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