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&#39;s special<br />
IRQ setup handling may trigger this behavior more frequently, but it<br />
is not ensured that other 8250 drivers aren&#39;t affected.


