CVE-2026-80711power: supply: max17040: handle missing status supplier
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Aug 28, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from f4b782af61ae7bbf93008d5809b0e3a8ac2bb88e before 91ac995a6f4ddf4f92b231b080544abf23a9b871; from f4b782af61ae7bbf93008d5809b0e3a8ac2bb88e before b039f13e095d28a64ca6b21d0ee5440d8b048f37; from f4b782af61ae7bbf93008d5809b0e3a8ac2bb88e before ee2ea0c452edc0930e7395b080dccd5a1cb965e1; from f4b782af61ae7bbf93008d5809b0e3a8ac2bb88e before 725668c6b6aa3971fe850659102c250d0d676e18 | CNA record |
References
- https://git.kernel.org/stable/c/91ac995a6f4ddf4f92b231b080544abf23a9b871
- https://git.kernel.org/stable/c/b039f13e095d28a64ca6b21d0ee5440d8b048f37
- https://git.kernel.org/stable/c/ee2ea0c452edc0930e7395b080dccd5a1cb965e1
- https://git.kernel.org/stable/c/725668c6b6aa3971fe850659102c250d0d676e18
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.