ghsa-c982-mg4h-7c8x
Vulnerability from github
Published
2025-02-27 03:34
Modified
2025-02-27 03:34
Details

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

KEYS: trusted: dcp: fix improper sg use with CONFIG_VMAP_STACK=y

With vmalloc stack addresses enabled (CONFIG_VMAP_STACK=y) DCP trusted keys can crash during en- and decryption of the blob encryption key via the DCP crypto driver. This is caused by improperly using sg_init_one() with vmalloc'd stack buffers (plain_key_blob).

Fix this by always using kmalloc() for buffers we give to the DCP crypto driver.

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{
  "affected": [],
  "aliases": [
    "CVE-2024-58008"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-27T03:15:11Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nKEYS: trusted: dcp: fix improper sg use with CONFIG_VMAP_STACK=y\n\nWith vmalloc stack addresses enabled (CONFIG_VMAP_STACK=y) DCP trusted\nkeys can crash during en- and decryption of the blob encryption key via\nthe DCP crypto driver. This is caused by improperly using sg_init_one()\nwith vmalloc\u0027d stack buffers (plain_key_blob).\n\nFix this by always using kmalloc() for buffers we give to the DCP crypto\ndriver.",
  "id": "GHSA-c982-mg4h-7c8x",
  "modified": "2025-02-27T03:34:03Z",
  "published": "2025-02-27T03:34:03Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-58008"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3192f1c54dddb9b5820bf5e8677809949d8e9c66"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3355594de46fb1cba663f12b9644b664b8a609f4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e8d9fab39d1f87b52932646b2f1e7877aa3fc0f4"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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