GHSA-WJRP-P8QR-8JR3

Vulnerability from github – Published: 2026-07-24 18:31 – Updated: 2026-07-24 18:31
VLAI
Details

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

device property: set fwnode->secondary to NULL in fwnode_init()

If a firmware node is allocated on the stack (for instance: temporary software node whose life-time we control) or on the heap - but using a non-zeroing allocation function - and initialized using fwnode_init(), its secondary pointer will contain uninitalized memory which likely will be neither NULL nor IS_ERR() and so may end up being dereferenced (for example: in dev_to_swnode()). Set fwnode->secondary to NULL on initialization.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-64220"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-24T16:16:49Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndevice property: set fwnode-\u003esecondary to NULL in fwnode_init()\n\nIf a firmware node is allocated on the stack (for instance: temporary\nsoftware node whose life-time we control) or on the heap - but using a\nnon-zeroing allocation function - and initialized using fwnode_init(),\nits secondary pointer will contain uninitalized memory which likely will\nbe neither NULL nor IS_ERR() and so may end up being dereferenced (for\nexample: in dev_to_swnode()). Set fwnode-\u003esecondary to NULL on\ninitialization.",
  "id": "GHSA-wjrp-p8qr-8jr3",
  "modified": "2026-07-24T18:31:27Z",
  "published": "2026-07-24T18:31:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64220"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/215c90ee656114f5e8c32408228d97082f8e0eef"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/34bf74b1fd2e4a44e27821a329204caf09df2976"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/371f53925a6714d0aa35f1aefdffc3e8cd62f480"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3f1024deeab3b5443c29b3de4fe475e87309b8fa"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/508fd8ab158abd04b7f7d0f707cd6d6c405df4ea"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f0e211d6539fae800217c10797993b7592d6ab01"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f59e686c778cb41b8f7aa8fab2afd6a01afb3d47"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}



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