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->pdev before using it\n\npriv->pdev 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->pdev 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->dev is dereferenced before assignment but never used,\nfor example if there is no error to be printed, the driver won't 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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