ghsa-2292-859m-6prp
Vulnerability from github
Published
2024-03-03 00:30
Modified
2024-12-11 15:31
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details

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

ieee802154: ca8210: Fix a potential UAF in ca8210_probe

If of_clk_add_provider() fails in ca8210_register_ext_clock(), it calls clk_unregister() to release priv->clk and returns an error. However, the caller ca8210_probe() then calls ca8210_remove(), where priv->clk is freed again in ca8210_unregister_ext_clock(). In this case, a use-after-free may happen in the second time we call clk_unregister().

Fix this by removing the first clk_unregister(). Also, priv->clk could be an error code on failure of clk_register_fixed_rate(). Use IS_ERR_OR_NULL to catch this case in ca8210_unregister_ext_clock().

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{
  "affected": [],
  "aliases": [
    "CVE-2023-52510"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-03-02T22:15:47Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nieee802154: ca8210: Fix a potential UAF in ca8210_probe\n\nIf of_clk_add_provider() fails in ca8210_register_ext_clock(),\nit calls clk_unregister() to release priv-\u003eclk and returns an\nerror. However, the caller ca8210_probe() then calls ca8210_remove(),\nwhere priv-\u003eclk is freed again in ca8210_unregister_ext_clock(). In\nthis case, a use-after-free may happen in the second time we call\nclk_unregister().\n\nFix this by removing the first clk_unregister(). Also, priv-\u003eclk could\nbe an error code on failure of clk_register_fixed_rate(). Use\nIS_ERR_OR_NULL to catch this case in ca8210_unregister_ext_clock().",
  "id": "GHSA-2292-859m-6prp",
  "modified": "2024-12-11T15:31:14Z",
  "published": "2024-03-03T00:30:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52510"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/217efe32a45249eb07dcd7197e8403de98345e66"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/28b68cba378e3e50a4082b65f262bc4f2c7c2add"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/55e06850c7894f00d41b767c5f5665459f83f58f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/84c6aa0ae5c4dc121f9996bb8fed46c80909d80e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/85c2857ef90041f567ce98722c1c342c4d31f4bc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/becf5c147198f4345243c5df0c4f035415491640"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cdb46be93c1f7bbf2c4649e9fc5fb147cfb5245d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f990874b1c98fe8e57ee9385669f501822979258"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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