Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

CVE-2026-74687

Gravedad:
Pendiente de análisis
Tipo:
No Disponible / Otro tipo
Fecha de publicación:
22/08/2026
Última modificación:
22/08/2026

Descripción

*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> watchdog: at91sam9_wdt: prevent timer rearm during teardown<br /> <br /> at91_ping() rearms the watchdog timer from its callback. timer_delete()<br /> neither waits for a running callback nor prevents it from rearming the<br /> timer, so probe failure or driver removal can leave the timer accessing the<br /> devm-allocated at91wdt after it has been freed.<br /> <br /> Use timer_shutdown_sync() on both teardown paths. It waits for a running<br /> callback and rejects any attempt by the callback to rearm the timer.

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