CVE-2026-80711
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 versions
Linux kernel versions
6.7
and later are affected. Fixed in
6.12.103,
6.18.44,
7.1.8,
7.2
and their respective stable series.
References
4 totalFrequently asked questions
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What is CVE-2026-80711?
CVE-2026-80711 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.7 onward and has been patched in 6.12.103, 6.18.44, 7.1.8 and others. CVE-2026-80711 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-80711?
Yes. CVE-2026-80711 has been patched. Fixed versions include 6.12.103, 6.18.44, 7.1.8 and others. If you are running Linux kernel 6.7 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-80711 actively exploited?
No. CVE-2026-80711 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.