ghsa-4mf7-7hx2-42fv
Vulnerability from github
Published
2025-12-23 15:30
Modified
2025-12-23 15:30
Details

In the Linux kernel, the following vulnerability has been resolved:

net: dsa: microchip: Don't free uninitialized ksz_irq

If something goes wrong at setup, ksz_irq_free() can be called on uninitialized ksz_irq (for example when ksz_ptp_irq_setup() fails). It leads to freeing uninitialized IRQ numbers and/or domains.

Use dsa_switch_for_each_user_port_continue_reverse() in the error path to iterate only over the fully initialized ports.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-68338"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-23T14:16:40Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: dsa: microchip: Don\u0027t free uninitialized ksz_irq\n\nIf something goes wrong at setup, ksz_irq_free() can be called on\nuninitialized ksz_irq (for example when ksz_ptp_irq_setup() fails). It\nleads to freeing uninitialized IRQ numbers and/or domains.\n\nUse dsa_switch_for_each_user_port_continue_reverse() in the error path\nto iterate only over the fully initialized ports.",
  "id": "GHSA-4mf7-7hx2-42fv",
  "modified": "2025-12-23T15:30:40Z",
  "published": "2025-12-23T15:30:40Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-68338"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/25b62cc5b22c45face094ae3e8717258e46d1d19"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/32abbcf4379a0f851d7eb9d4389e7bf5c64bf6c0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9428654c827fa8d38b898135d26d39ee2d544246"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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