power: supply: max17040: handle missing status supplier (CVE-2026-80711) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-80711

power: supply: max17040: handle missing status supplier

Answer in brief

CVE-2026-80711 records a Unknown severity vulnerability in power: supply: max17040: handle missing status supplier. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 28, 2026Updated Aug 28, 2026Source checked Aug 28, 2026First seen by HOL Aug 28, 2026Material review Aug 28, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Linux/Linuxgeneric	>=f4b782af61ae7bbf93008d5809b0e3a8ac2bb88e <91ac995a6f4ddf4f92b231b080544abf23a9b871 \|\| >=f4b782af61ae7bbf93008d5809b0e3a8ac2bb88e <b039f13e095d28a64ca6b21d0ee5440d8b048f37 \|\| >=f4b782af61ae7bbf93008d5809b0e3a8ac2bb88e <ee2ea0c452edc0930e7395b080dccd5a1cb965e1 \|\| >=f4b782af61ae7bbf93008d5809b0e3a8ac2bb88e <725668c6b6aa3971fe850659102c250d0d676e18	91ac995a6f4ddf4f92b231b080544abf23a9b871, b039f13e095d28a64ca6b21d0ee5440d8b048f37, ee2ea0c452edc0930e7395b080dccd5a1cb965e1, 725668c6b6aa3971fe850659102c250d0d676e18
Linux/Linuxgeneric	6.7	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 91ac995a6f4ddf4f92b231b080544abf23a9b871 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Aug 28, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Aug 28, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 28, 2026

Sources and claim methodology

Upstream source 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.

Quoted source text, attributed separately from HOL analysis.