CVE-2023-53551 (GCVE-0-2023-53551)
Vulnerability from cvelistv5
Published
2025-10-04 15:16
Modified
2025-10-04 15:16
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
Impacted products
Vendor Product Version
Linux Linux Version: aba3a8d01d623a5efef48ab8e78752d58d4c90c3
Version: aba3a8d01d623a5efef48ab8e78752d58d4c90c3
Version: aba3a8d01d623a5efef48ab8e78752d58d4c90c3
Version: aba3a8d01d623a5efef48ab8e78752d58d4c90c3
Version: aba3a8d01d623a5efef48ab8e78752d58d4c90c3
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/usb/gadget/function/u_serial.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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          "programFiles": [
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.8"
            },
            {
              "lessThan": "5.8",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
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              "version": "5.10.171",
              "versionType": "semver"
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              "status": "unaffected",
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              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.15",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.2.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
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                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-10-04T15:16:57.736Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/c5360eec648bd506afa304ae4a71f82e13d41897"
        },
        {
          "url": "https://git.kernel.org/stable/c/3b24c980dc07be4550a9d1450ed7057f882530e5"
        },
        {
          "url": "https://git.kernel.org/stable/c/ec357cd3e8af614855d286dd378725cdc7264df6"
        },
        {
          "url": "https://git.kernel.org/stable/c/44e004f757a7ae13dfebaadbcfdb1a6f98c10377"
        },
        {
          "url": "https://git.kernel.org/stable/c/5ec63fdbca604568890c577753c6f66c5b3ef0b5"
        }
      ],
      "title": "usb: gadget: u_serial: Add null pointer check in gserial_resume",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53551",
    "datePublished": "2025-10-04T15:16:57.736Z",
    "dateReserved": "2025-10-04T15:14:15.922Z",
    "dateUpdated": "2025-10-04T15:16:57.736Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-53551\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-10-04T16:15:50.370\",\"lastModified\":\"2025-10-06T14:56:21.733\",\"vulnStatus\":\"Awaiting Analysis\",\"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.\"}],\"metrics\":{},\"references\":[{\"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\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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