ghsa-x2mg-85cj-xc8q
Vulnerability from github
Published
2025-10-04 18:31
Modified
2025-10-04 18:31
Details

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

usb: gadget: u_serial: Add null pointer check in gserial_resume

Consider a case where gserial_disconnect has already cleared gser->ioport. And if a wakeup interrupt triggers afterwards, gserial_resume gets called, which will lead to accessing of gser->ioport and thus causing null pointer dereference.Add a null pointer check to prevent this.

Added a static spinlock to prevent gser->ioport from becoming null after the newly added check.

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{
  "affected": [],
  "aliases": [
    "CVE-2023-53551"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-10-04T16:15:50Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: u_serial: Add null pointer check in gserial_resume\n\nConsider a case where gserial_disconnect has already cleared\ngser-\u003eioport. And if a wakeup interrupt triggers afterwards,\ngserial_resume gets called, which will lead to accessing of\ngser-\u003eioport and thus causing null pointer dereference.Add\na null pointer check to prevent this.\n\nAdded a static spinlock to prevent gser-\u003eioport from becoming\nnull after the newly added check.",
  "id": "GHSA-x2mg-85cj-xc8q",
  "modified": "2025-10-04T18:31:15Z",
  "published": "2025-10-04T18:31:14Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53551"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3b24c980dc07be4550a9d1450ed7057f882530e5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/44e004f757a7ae13dfebaadbcfdb1a6f98c10377"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5ec63fdbca604568890c577753c6f66c5b3ef0b5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c5360eec648bd506afa304ae4a71f82e13d41897"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ec357cd3e8af614855d286dd378725cdc7264df6"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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