CVE-2025-21838
Estado: ModificadaMedia (5.5)—
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.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 5.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.20%
- Percentil entre todas las CVEs puntuadas: 9
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (1)
CWE
- NVD-CWE-noinfo
Referencias
- https://git.kernel.org/stable/c/399a45e5237ca14037120b1b895bd38a3b4492ea
- https://git.kernel.org/stable/c/859cb45aefa6de823b2fa7f229fe6d9562c9f3b7
- https://git.kernel.org/stable/c/97695b5a1b5467a4f91194db12160f56da445dfe
- https://git.kernel.org/stable/c/e3bc1a9a67ce33a2e761e6e7b7c2afc6cb9b7266
- https://git.kernel.org/stable/c/f894448f3904d7ad66fecef8f01fe0172629e091
- https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html
JSON original (NVD)
Mostrar
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"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->work\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(&gadget->work)\n\nMove flush_work() after device_del() to ensure the workqueue is cleaned\nup."
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"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: usb: gadget: core: vaciar la cola de trabajo de gadget después de la eliminación del dispositivo device_del() puede provocar que se programe un nuevo trabajo en la cola de trabajo gadget->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(&gadget->work) Mueva flush_work() después de device_del() para garantizar que se limpie la cola de trabajo."
}
],
"lastModified": "2026-06-17T08:44:24.693",
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