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Linux CVE-2026-89462

| EUVDEUVD-2026-76368
2026-09-11 Linux GHSA-2jg4-h8v3-7354

Lifecycle Timeline

2
Patch available
Sep 11, 2026 - 21:18 EUVD
CVE Published
Sep 11, 2026 - 19:43 cve.org
UNKNOWN (no severity yet)

DescriptionCVE.org

In the Linux kernel, the following vulnerability has been resolved:

power: supply: max17040: propagate register read errors

max17040_get_vcell() and max17040_get_soc() ignore errors returned by regmap_read(). When an I2C transfer fails, the uninitialized register value is converted and reported to userspace as a valid voltage or state of charge. The polling worker can also replace the cached state of charge with the bogus value and emit a spurious change event.

Propagate read errors through the power supply get_property callback and keep the last valid cached state of charge when polling fails.

Analysis

In the Linux kernel, the following vulnerability has been resolved: power: supply: max17040: propagate register read errors max17040_get_vcell() and max17040_get_soc() ignore errors returned by regmap_read(). When an I2C transfer fails, the uninitialized register value is converted and reported to userspace as a valid voltage or state of charge. …

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CVE-2026-89462 vulnerability details – vuln.today

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