ghsa-666w-62rj-5fc6
Vulnerability from github
Published
2025-11-12 12:30
Modified
2025-11-12 12:30
Details

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

hwrng: ks-sa - fix division by zero in ks_sa_rng_init

Fix division by zero in ks_sa_rng_init caused by missing clock pointer initialization. The clk_get_rate() call is performed on an uninitialized clk pointer, resulting in division by zero when calculating delay values.

Add clock initialization code before using the clock.

drivers/char/hw_random/ks-sa-rng.c | 7 +++++++ 1 file changed, 7 insertions(+)

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{
  "affected": [],
  "aliases": [
    "CVE-2025-40127"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-11-12T11:15:42Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nhwrng: ks-sa - fix division by zero in ks_sa_rng_init\n\nFix division by zero in ks_sa_rng_init caused by missing clock\npointer initialization. The clk_get_rate() call is performed on\nan uninitialized clk pointer, resulting in division by zero when\ncalculating delay values.\n\nAdd clock initialization code before using the clock.\n\n\n drivers/char/hw_random/ks-sa-rng.c | 7 +++++++\n 1 file changed, 7 insertions(+)",
  "id": "GHSA-666w-62rj-5fc6",
  "modified": "2025-11-12T12:30:27Z",
  "published": "2025-11-12T12:30:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-40127"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2b6bcce32cb5aff84588a844a4d3f6dd5353b8e2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/55a70e1de75e5ff5f961c79a2cdc6a4468cc2bf2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/612b1dfeb414dfa780a6316014ceddf9a74ff5c0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/692a04a1e0cde1d80a33df0078c755cf02cd7268"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d76b099011fa056950f63d05ebb6160991242f6a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/eec7e0e19c1fa75dc65e25aa6a21ef24a03849af"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f4238064379a91e71a9c258996acac43c50c2094"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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