CVE-2026-80711

Not scored yetLast modified Aug 28, 2026

Description

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.

Metrics

No CVSS score has been published yet.

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

VendorProductVersions
LinuxLinux>= f4b782af61ae7bbf93008d5809b0e3a8ac2bb88e, < 91ac995a6f4ddf4f92b231b080544abf23a9b871; >= f4b782af61ae7bbf93008d5809b0e3a8ac2bb88e, < b039f13e095d28a64ca6b21d0ee5440d8b048f37; >= f4b782af61ae7bbf93008d5809b0e3a8ac2bb88e, < ee2ea0c452edc0930e7395b080dccd5a1cb965e1; >= f4b782af61ae7bbf93008d5809b0e3a8ac2bb88e, < 725668c6b6aa3971fe850659102c250d0d676e18
LinuxLinux6.7

References

Timeline

Published
Aug 28, 2026
Last modified
Aug 28, 2026
NVD status
Received

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CVE-2026-80711: Unscored | Vulnix