CVE-2025-21894
Estado: AnalizadaMedia (5.5)—
In the Linux kernel, the following vulnerability has been resolved:
net: enetc: VFs do not support HWTSTAMP_TX_ONESTEP_SYNC
Actually ENETC VFs do not support HWTSTAMP_TX_ONESTEP_SYNC because only ENETC PF can access PMa_SINGLE_STEP registers. And there will be a crash if VFs are used to test one-step timestamp, the crash log as follows.
Detalles técnicos trazas, registros y código del informe original
[ 129.110909] Unable to handle kernel paging request at virtual address 00000000000080c0 [ 129.287769] Call trace: [ 129.290219] enetc_port_mac_wr+0x30/0xec (P) [ 129.294504] enetc_start_xmit+0xda4/0xe74 [ 129.298525] enetc_xmit+0x70/0xec [ 129.301848] dev_hard_start_xmit+0x98/0x118
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
JSON original (NVD)
Mostrar
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: enetc: VFs do not support HWTSTAMP_TX_ONESTEP_SYNC\n\nActually ENETC VFs do not support HWTSTAMP_TX_ONESTEP_SYNC because only\nENETC PF can access PMa_SINGLE_STEP registers. And there will be a crash\nif VFs are used to test one-step timestamp, the crash log as follows.\n\n[ 129.110909] Unable to handle kernel paging request at virtual address 00000000000080c0\n[ 129.287769] Call trace:\n[ 129.290219] enetc_port_mac_wr+0x30/0xec (P)\n[ 129.294504] enetc_start_xmit+0xda4/0xe74\n[ 129.298525] enetc_xmit+0x70/0xec\n[ 129.301848] dev_hard_start_xmit+0x98/0x118"
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"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: enetc: Las funciones virtuales no admiten HWTSTAMP_TX_ONESTEP_SYNC. En realidad, las funciones virtuales de ENETC no admiten HWTSTAMP_TX_ONESTEP_SYNC porque solo la función de protección de ENETC puede acceder a los registros PMa_SINGLE_STEP. Se producirá un fallo si se utilizan funciones virtuales para probar la marca de tiempo de un paso. El registro de fallos es el siguiente. [ 129.110909] No se puede gestionar la solicitud de paginación del kernel en la dirección virtual 00000000000080c0 [ 129.287769] Rastreo de llamadas: [ 129.290219] enetc_port_mac_wr+0x30/0xec (P) [ 129.294504] enetc_start_xmit+0xda4/0xe74 [ 129.298525] enetc_xmit+0x70/0xec [ 129.301848] dev_hard_start_xmit+0x98/0x118"
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"lastModified": "2026-06-17T08:44:33.090",
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