fkie_cve-2023-53551
Vulnerability from fkie_nvd
Published
2025-10-04 16:15
Modified
2025-10-06 14:56
Severity ?
Summary
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3b24c980dc07be4550a9d1450ed7057f882530e5
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/44e004f757a7ae13dfebaadbcfdb1a6f98c10377
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5ec63fdbca604568890c577753c6f66c5b3ef0b5
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c5360eec648bd506afa304ae4a71f82e13d41897
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ec357cd3e8af614855d286dd378725cdc7264df6
Impacted products
Vendor Product Version


To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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": "CVE-2023-53551",
  "lastModified": "2025-10-06T14:56:21.733",
  "metrics": {},
  "published": "2025-10-04T16:15:50.370",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/3b24c980dc07be4550a9d1450ed7057f882530e5"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/44e004f757a7ae13dfebaadbcfdb1a6f98c10377"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/5ec63fdbca604568890c577753c6f66c5b3ef0b5"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c5360eec648bd506afa304ae4a71f82e13d41897"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ec357cd3e8af614855d286dd378725cdc7264df6"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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