CVE-2026-80711
Gravedad:
Pendiente de análisis
Tipo:
No Disponible / Otro tipo
Fecha de publicación:
28/08/2026
Última modificación:
28/08/2026
Descripción
*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
power: supply: max17040: handle missing status supplier<br />
<br />
MAX17040 does not report charger state itself, so the driver forwards<br />
POWER_SUPPLY_PROP_STATUS to a supplier power supply. If no supplier is<br />
registered, power_supply_get_property_from_supplier() returns -ENODEV and<br />
leaves the output value untouched.<br />
<br />
max17040_get_property() currently ignores that error and returns success,<br />
so userspace can read an uninitialized status value from the battery power<br />
supply. This happens on systems that use the fuel gauge without a charger<br />
supplier relationship in firmware.<br />
<br />
Return POWER_SUPPLY_STATUS_UNKNOWN when no supplier provides STATUS, and<br />
propagate other supplier lookup errors.



