CVE-2025-21838 (GCVE-0-2025-21838)
Vulnerability from cvelistv5
Published
2025-03-07 09:09
Modified
2025-05-04 07:22
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: usb: gadget: core: flush gadget workqueue after device removal device_del() can lead to new work being scheduled in gadget->work workqueue. This is observed, for example, with the dwc3 driver with the following call stack: device_del() gadget_unbind_driver() usb_gadget_disconnect_locked() dwc3_gadget_pullup() dwc3_gadget_soft_disconnect() usb_gadget_set_state() schedule_work(&gadget->work) Move flush_work() after device_del() to ensure the workqueue is cleaned up.
References
Impacted products
Vendor Product Version
Linux Linux Version: 5702f75375aa9ecf8ad3431aef3fe6ce8c8dbd15
Version: 5702f75375aa9ecf8ad3431aef3fe6ce8c8dbd15
Version: 5702f75375aa9ecf8ad3431aef3fe6ce8c8dbd15
Version: 5702f75375aa9ecf8ad3431aef3fe6ce8c8dbd15
Version: 5702f75375aa9ecf8ad3431aef3fe6ce8c8dbd15
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/usb/gadget/udc/core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "e3bc1a9a67ce33a2e761e6e7b7c2afc6cb9b7266",
              "status": "affected",
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              "versionType": "git"
            },
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              "versionType": "git"
            },
            {
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              "versionType": "git"
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            {
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              "versionType": "git"
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            {
              "lessThan": "399a45e5237ca14037120b1b895bd38a3b4492ea",
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              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/usb/gadget/udc/core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.12"
            },
            {
              "lessThan": "3.12",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.130",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.80",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.16",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.13.*",
              "status": "unaffected",
              "version": "6.13.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.14",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.130",
                  "versionStartIncluding": "3.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.80",
                  "versionStartIncluding": "3.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.16",
                  "versionStartIncluding": "3.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.13.4",
                  "versionStartIncluding": "3.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.14",
                  "versionStartIncluding": "3.12",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: core: flush gadget workqueue after device removal\n\ndevice_del() can lead to new work being scheduled in gadget-\u003ework\nworkqueue. This is observed, for example, with the dwc3 driver with the\nfollowing call stack:\n  device_del()\n    gadget_unbind_driver()\n      usb_gadget_disconnect_locked()\n        dwc3_gadget_pullup()\n\t  dwc3_gadget_soft_disconnect()\n\t    usb_gadget_set_state()\n\t      schedule_work(\u0026gadget-\u003ework)\n\nMove flush_work() after device_del() to ensure the workqueue is cleaned\nup."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T07:22:17.406Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/e3bc1a9a67ce33a2e761e6e7b7c2afc6cb9b7266"
        },
        {
          "url": "https://git.kernel.org/stable/c/859cb45aefa6de823b2fa7f229fe6d9562c9f3b7"
        },
        {
          "url": "https://git.kernel.org/stable/c/f894448f3904d7ad66fecef8f01fe0172629e091"
        },
        {
          "url": "https://git.kernel.org/stable/c/97695b5a1b5467a4f91194db12160f56da445dfe"
        },
        {
          "url": "https://git.kernel.org/stable/c/399a45e5237ca14037120b1b895bd38a3b4492ea"
        }
      ],
      "title": "usb: gadget: core: flush gadget workqueue after device removal",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-21838",
    "datePublished": "2025-03-07T09:09:57.515Z",
    "dateReserved": "2024-12-29T08:45:45.777Z",
    "dateUpdated": "2025-05-04T07:22:17.406Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-21838\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-03-07T09:15:16.810\",\"lastModified\":\"2025-03-07T18:15:47.713\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nusb: gadget: core: flush gadget workqueue after device removal\\n\\ndevice_del() can lead to new work being scheduled in gadget-\u003ework\\nworkqueue. This is observed, for example, with the dwc3 driver with the\\nfollowing call stack:\\n  device_del()\\n    gadget_unbind_driver()\\n      usb_gadget_disconnect_locked()\\n        dwc3_gadget_pullup()\\n\\t  dwc3_gadget_soft_disconnect()\\n\\t    usb_gadget_set_state()\\n\\t      schedule_work(\u0026gadget-\u003ework)\\n\\nMove flush_work() after device_del() to ensure the workqueue is cleaned\\nup.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: usb: gadget: core: vaciar la cola de trabajo de gadget despu\u00e9s de la eliminaci\u00f3n del dispositivo device_del() puede provocar que se programe un nuevo trabajo en la cola de trabajo gadget-\u0026gt;work. Esto se observa, por ejemplo, con el controlador dwc3 con la siguiente pila de llamadas: device_del() gadget_unbind_driver() usb_gadget_disconnect_locked() dwc3_gadget_pullup() dwc3_gadget_soft_disconnect() usb_gadget_set_state() schedule_work(\u0026amp;gadget-\u0026gt;work) Mueva flush_work() despu\u00e9s de device_del() para garantizar que se limpie la cola de trabajo.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/399a45e5237ca14037120b1b895bd38a3b4492ea\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/859cb45aefa6de823b2fa7f229fe6d9562c9f3b7\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/97695b5a1b5467a4f91194db12160f56da445dfe\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e3bc1a9a67ce33a2e761e6e7b7c2afc6cb9b7266\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f894448f3904d7ad66fecef8f01fe0172629e091\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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