CVE-2025-71200
Estado: AnalizadaMedia (5.5)—
In the Linux kernel, the following vulnerability has been resolved:
mmc: sdhci-of-dwcmshc: Prevent illegal clock reduction in HS200/HS400 mode
When operating in HS200 or HS400 timing modes, reducing the clock frequency below 52MHz will lead to link broken as the Rockchip DWC MSHC controller requires maintaining a minimum clock of 52MHz in these modes.
Add a check to prevent illegal clock reduction through debugfs:
Detalles técnicos trazas, registros y código del informe original
root@debian:/# echo 50000000 > /sys/kernel/debug/mmc0/clock root@debian:/# [ 30.090146] mmc0: running CQE recovery mmc0: cqhci: Failed to halt mmc0: cqhci: spurious TCN for tag 0 WARNING: drivers/mmc/host/cqhci-core.c:797 at cqhci_irq+0x254/0x818, CPU#1: kworker/1:0H/24 Modules linked in: CPU: 1 UID: 0 PID: 24 Comm: kworker/1:0H Not tainted 6.19.0-rc1-00001-g09db0998649d-dirty #204 PREEMPT Hardware name: Rockchip RK3588 EVB1 V10 Board (DT) Workqueue: kblockd blk_mq_run_work_fn pstate: 604000c9 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : cqhci_irq+0x254/0x818 lr : cqhci_irq+0x254/0x818 ...
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: 0.12%
- Percentil entre todas las CVEs puntuadas: 2
- 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/3009738a855cf938bbfc9078bec725031ae623a4
- https://git.kernel.org/stable/c/36be050f21dea7a3a76dff5a031da6274e8ee468
- https://git.kernel.org/stable/c/59b8a1ca6df4db2ca250e9eeab74e2b0068d69e9
- https://git.kernel.org/stable/c/de0ad7156036a50982bcb75a080e4af284502be2
- https://git.kernel.org/stable/c/f2677d6e2bbc5ba2030825522d2afd0542b038a3
JSON original (NVD)
Mostrar
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"id": "CVE-2025-71200",
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"source": "nvd@nist.gov",
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"version": "3.1",
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"attackVector": "LOCAL",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "LOW",
"confidentialityImpact": "NONE"
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"descriptions": [
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmmc: sdhci-of-dwcmshc: Prevent illegal clock reduction in HS200/HS400 mode\n\nWhen operating in HS200 or HS400 timing modes, reducing the clock frequency\nbelow 52MHz will lead to link broken as the Rockchip DWC MSHC controller\nrequires maintaining a minimum clock of 52MHz in these modes.\n\nAdd a check to prevent illegal clock reduction through debugfs:\n\nroot@debian:/# echo 50000000 > /sys/kernel/debug/mmc0/clock\nroot@debian:/# [ 30.090146] mmc0: running CQE recovery\nmmc0: cqhci: Failed to halt\nmmc0: cqhci: spurious TCN for tag 0\nWARNING: drivers/mmc/host/cqhci-core.c:797 at cqhci_irq+0x254/0x818, CPU#1: kworker/1:0H/24\nModules linked in:\nCPU: 1 UID: 0 PID: 24 Comm: kworker/1:0H Not tainted 6.19.0-rc1-00001-g09db0998649d-dirty #204 PREEMPT\nHardware name: Rockchip RK3588 EVB1 V10 Board (DT)\nWorkqueue: kblockd blk_mq_run_work_fn\npstate: 604000c9 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\npc : cqhci_irq+0x254/0x818\nlr : cqhci_irq+0x254/0x818\n..."
},
{
"lang": "es",
"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nmmc: sdhci-of-dwcmshc: Evitar la reducción ilegal del reloj en modo HS200/HS400\n\nAl operar en los modos de temporización HS200 o HS400, reducir la frecuencia del reloj por debajo de 52MHz provocará la interrupción del enlace, ya que el controlador Rockchip DWC MSHC requiere mantener un reloj mínimo de 52MHz en estos modos.\n\nAñadir una comprobación para evitar la reducción ilegal del reloj a través de debugfs:\n\nroot@debian:/# echo 50000000 > /sys/kernel/debug/mmc0/clock\nroot@debian:/# [ 30.090146] mmc0: ejecutando recuperación de CQE\nmmc0: cqhci: Fallo al detener\nmmc0: cqhci: TCN espurio para la etiqueta 0\nADVERTENCIA: drivers/mmc/host/cqhci-core.c:797 en cqhci_irq+0x254/0x818, CPU#1: kworker/1:0H/24\nMódulos enlazados:\nCPU: 1 UID: 0 PID: 24 Comm: kworker/1:0H No contaminado 6.19.0-rc1-00001-g09db0998649d-dirty #204 PREEMPT\nNombre del hardware: Placa Rockchip RK3588 EVB1 V10 (DT)\nCola de trabajo: kblockd blk_mq_run_work_fn\npstate: 604000c9 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\npc : cqhci_irq+0x254/0x818\nlr : cqhci_irq+0x254/0x818\n..."
}
],
"lastModified": "2026-06-17T10:03:52.430",
"configurations": [
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