GHSA-9G3F-FGM8-4CGM

Vulnerability from github – Published: 2025-09-18 15:30 – Updated: 2025-12-11 18:30
VLAI
Details

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

md/raid10: fix null-ptr-deref of mreplace in raid10_sync_request

There are two check of 'mreplace' in raid10_sync_request(). In the first check, 'need_replace' will be set and 'mreplace' will be used later if no-Faulty 'mreplace' exists, In the second check, 'mreplace' will be set to NULL if it is Faulty, but 'need_replace' will not be changed accordingly. null-ptr-deref occurs if Faulty is set between two check.

Fix it by merging two checks into one. And replace 'need_replace' with 'mreplace' because their values are always the same.

Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2023-53380"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-09-18T14:15:40Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmd/raid10: fix null-ptr-deref of mreplace in raid10_sync_request\n\nThere are two check of \u0027mreplace\u0027 in raid10_sync_request(). In the first\ncheck, \u0027need_replace\u0027 will be set and \u0027mreplace\u0027 will be used later if\nno-Faulty \u0027mreplace\u0027 exists, In the second check, \u0027mreplace\u0027 will be\nset to NULL if it is Faulty, but \u0027need_replace\u0027 will not be changed\naccordingly. null-ptr-deref occurs if Faulty is set between two check.\n\nFix it by merging two checks into one. And replace \u0027need_replace\u0027 with\n\u0027mreplace\u0027 because their values are always the same.",
  "id": "GHSA-9g3f-fgm8-4cgm",
  "modified": "2025-12-11T18:30:33Z",
  "published": "2025-09-18T15:30:34Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53380"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/144c7fd008e0072b0b565f1157eec618de54ca8a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/222cc459d59857ee28a5366dc225ab42b22f9272"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2990e2ece18dd4cca71b3109c80517ad94adb065"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/34817a2441747b48e444cb0e05d84e14bc9443da"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/45fa023b3334a7ae6f6c4eb977295804222dfa28"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b5015b97adda6a24dd3e713c63e521ecbeff25c6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f4368a462b1f9a8ecc2fdb09a28c3d4cad302a4f"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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