ghsa-fphh-62qm-fm76
Vulnerability from github
Published
2024-07-29 18:30
Modified
2025-02-03 15:32
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details

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.

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{
  "affected": [],
  "aliases": [
    "CVE-2024-42089"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-07-29T17:15:11Z",
    "severity": "MODERATE"
  },
  "details": "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.",
  "id": "GHSA-fphh-62qm-fm76",
  "modified": "2025-02-03T15:32:00Z",
  "published": "2024-07-29T18:30:42Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-42089"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/29bc9e7c75398b0d12fc30955f2e9b2dd29ffaed"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3662eb2170e59b58ad479982dc1084889ba757b9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/544ab46b7ece6d6bebbdee5d5659c0a0f804a99a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7c18b4d89ff9c810b6e562408afda5ce165c4ea6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8896e18b7c366f8faf9344abfd0971435f1c723a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8faf91e58425c2f6ce773250dfd995f1c2d461ac"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/90f3feb24172185f1832636264943e8b5e289245"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ae81535ce2503aabc4adab3472f4338070cdeb6a"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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