CVE-2025-37933
Full vulnerability record from the local CVENow database.
Description
In the Linux kernel, the following vulnerability has been resolved: octeon_ep: Fix host hang issue during device reboot When the host loses heartbeat messages from the device, the driver calls the device-specific ndo_stop function, which frees the resources. If the driver is unloaded in this scenario, it calls ndo_stop again, attempting to free resources that have already been freed, leading to a host hang issue. To resolve this, dev_close should be called instead of the device-specific stop function.dev_close internally calls ndo_stop to stop the network interface and performs additional cleanup tasks. During the driver unload process, if the device is already down, ndo_stop is not called.
Severity
MEDIUM
CVSS score
5.5
(v3.1)
Vulnerability status
Analyzed
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2025-05-20 16:15:29.933000
Last modified
2026-11-05 21:17:58.687000
View original CVE JSON
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"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2025-05-20T16:15:29.933",
"lastModified": "2026-11-05T21:17:58.687",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nocteon_ep: Fix host hang issue during device reboot\n\nWhen the host loses heartbeat messages from the device,\nthe driver calls the device-specific ndo_stop function,\nwhich frees the resources. If the driver is unloaded in\nthis scenario, it calls ndo_stop again, attempting to free\nresources that have already been freed, leading to a host\nhang issue. To resolve this, dev_close should be called\ninstead of the device-specific stop function.dev_close\ninternally calls ndo_stop to stop the network interface\nand performs additional cleanup tasks. During the driver\nunload process, if the device is already down, ndo_stop\nis not called."
},
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"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: octeon_ep: Se solucionó el problema de bloqueo del host durante el reinicio del dispositivo. Cuando el host pierde los mensajes de latido del dispositivo, el controlador llama a la función ndo_stop específica del dispositivo, que libera los recursos. Si el controlador se descarga en este caso, vuelve a llamar a ndo_stop para intentar liberar los recursos ya liberados, lo que provoca un problema de bloqueo del host. Para solucionar esto, se debe llamar a dev_close en lugar de a la función de detención específica del dispositivo. Dev_close llama internamente a ndo_stop para detener la interfaz de red y realiza tareas de limpieza adicionales. Durante el proceso de descarga del controlador, si el dispositivo ya está inactivo, no se llama a ndo_stop."
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"attackComplexity": "LOW",
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