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

CVE-2026-97481

Gravedad:
Pendiente de análisis
Tipo:
No Disponible / Otro tipo
Fecha de publicación:
24/09/2026
Última modificación:
24/09/2026

Descripción

*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> serial: 8250: fix possible ISR soft lockup<br /> <br /> There are rare cases in which the host gets stuck in the ISR because it<br /> is flooded with messages during the startup phase.<br /> <br /> The reason for the soft lockup in the ISR is the missing FIFO error IRQ<br /> (FIFOE) handling. Not handling it and reporting IRQ_HANDLED triggers<br /> the IRQ immediately again.<br /> <br /> Fix this by adding a check for the FIFOE status and clearing the FIFO<br /> if no data is ready (DR).<br /> <br /> This behavior was observed on an AM62L device which uses the OMAP 8250<br /> driver. Fix it for all 8250 drivers, since the OMAP driver&amp;#39;s special<br /> IRQ setup handling may trigger this behavior more frequently, but it<br /> is not ensured that other 8250 drivers aren&amp;#39;t affected.

Impacto