CVE-2025-68312
Estado: AplazadaSin puntuar—
In the Linux kernel, the following vulnerability has been resolved:
usbnet: Prevents free active kevent
The root cause of this issue are: 1. When probing the usbnet device, executing usbnet_link_change(dev, 0, 0); put the kevent work in global workqueue. However, the kevent has not yet been scheduled when the usbnet device is unregistered. Therefore, executing free_netdev() results in the "free active object (kevent)" error reported here.
2. Another factor is that when calling usbnet_disconnect()->unregister_netdev(), if the usbnet device is up, ndo_stop() is executed to cancel the kevent. However, because the device is not up, ndo_stop() is not executed.
Leer descripción completaMostrar menos
The solution to this problem is to cancel the kevent before executing free_netdev().
CVSS
NVD no ha asignado puntuación CVSS a esta CVE (habitual desde el cambio de política de abril de 2026).
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)
⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.
Referencias
- https://git.kernel.org/stable/c/285d4b953f2ca03c358f986718dd89ee9bde632e
- https://git.kernel.org/stable/c/2ce1de32e05445d77fc056f6ff8339cfb78a5f84
- https://git.kernel.org/stable/c/3a10619fdefd3051aeb14860e4d4335529b4e94d
- https://git.kernel.org/stable/c/420c84c330d1688b8c764479e5738bbdbf0a33de
- https://git.kernel.org/stable/c/43005002b60ef3424719ecda16d124714b45da3b
- https://git.kernel.org/stable/c/5158fb8da162e3982940f30cd01ed77bdf42c6fc
- https://git.kernel.org/stable/c/88a38b135d69f5db9024ff6527232f1b51be8915
- https://git.kernel.org/stable/c/9a579d6a39513069d298eee70770bbac8a148565
JSON original (NVD)
Mostrar
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"metrics": {
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{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"role": "CISA Coordinator",
"options": [
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"exploitation": "none"
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{
"automatable": "no"
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"technicalImpact": "partial"
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"version": "2.0.3",
"timestamp": "2026-06-16T16:25:55.310081Z"
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],
"vulnStatus": "Deferred",
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusbnet: Prevents free active kevent\n\nThe root cause of this issue are:\n1. When probing the usbnet device, executing usbnet_link_change(dev, 0, 0);\nput the kevent work in global workqueue. However, the kevent has not yet\nbeen scheduled when the usbnet device is unregistered. Therefore, executing\nfree_netdev() results in the \"free active object (kevent)\" error reported\nhere.\n\n2. Another factor is that when calling usbnet_disconnect()->unregister_netdev(),\nif the usbnet device is up, ndo_stop() is executed to cancel the kevent.\nHowever, because the device is not up, ndo_stop() is not executed.\n\nThe solution to this problem is to cancel the kevent before executing\nfree_netdev()."
}
],
"lastModified": "2026-06-17T09:58:55.003",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}