fkie_cve-2025-21838
Vulnerability from fkie_nvd
Published
2025-03-07 09:15
Modified
2025-11-03 20:17
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/399a45e5237ca14037120b1b895bd38a3b4492eaPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/859cb45aefa6de823b2fa7f229fe6d9562c9f3b7Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/97695b5a1b5467a4f91194db12160f56da445dfePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e3bc1a9a67ce33a2e761e6e7b7c2afc6cb9b7266Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f894448f3904d7ad66fecef8f01fe0172629e091Patch
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.14
linux linux_kernel 6.14


To clipboard 

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              "versionEndExcluding": "6.1.130",
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  "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."
    }
  ],
  "id": "CVE-2025-21838",
  "lastModified": "2025-11-03T20:17:21.257",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
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  },
  "published": "2025-03-07T09:15:16.810",
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
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      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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