Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: power: supply: max17040: handle missing status supplier MAX17040 does not report charger state itself, so the driver forwards POWER_SUPPLY_PROP_STATUS to a supplier power supply. If no supplier is registered, power_supply_get_property_from_supplier() returns -ENODEV and leaves the output value untouched. max17040_get_property() currently ignores that error and returns success, so userspace can read an uninitialized status value from the battery power supply. This happens on systems that use the fuel gauge without a charger supplier relationship in firmware. Return POWER_SUPPLY_STATUS_UNKNOWN when no supplier provides STATUS, and propagate other supplier lookup errors.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected f4b782af61ae7bbf93008d5809b0e3a8ac2bb88e before 91ac995a6f4ddf4f92b231b080544abf23a9b871; affected f4b782af61ae7bbf93008d5809b0e3a8ac2bb88e before b039f13e095d28a64ca6b21d0ee5440d8b048f37; affected f4b782af61ae7bbf93008d5809b0e3a8ac2bb88e before ee2ea0c452edc0930e7395b080dccd5a1cb965e1; affected f4b782af61ae7bbf93008d5809b0e3a8ac2bb88e before 725668c6b6aa3971fe850659102c250d0d676e18 |
| Linux / Linux | affected 6.7; unaffected 0 before 6.7; unaffected 6.12.103 through 6.12.*; unaffected 6.18.44 through 6.18.*; unaffected 7.1.8 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.