CVE-2026-89462power: supply: max17040: propagate register read errors
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: 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.
- 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
- Oct 19, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from c6f4a42de60b981dd210de01cd3e575835e3158e before 2943a0edd4865ed744702ada647921c3981207f6; from c6f4a42de60b981dd210de01cd3e575835e3158e before 13fb0477da9b400071b9d518b24d6434c4965263; from c6f4a42de60b981dd210de01cd3e575835e3158e before c7aa4c3708cc0d8487336f8281665eaea87130f6; from c6f4a42de60b981dd210de01cd3e575835e3158e before 659cc3d8d5ef246263873fce72c8cadeeed073cc | CNA record |
References
- https://git.kernel.org/stable/c/2943a0edd4865ed744702ada647921c3981207f6
- https://git.kernel.org/stable/c/13fb0477da9b400071b9d518b24d6434c4965263
- https://git.kernel.org/stable/c/c7aa4c3708cc0d8487336f8281665eaea87130f6
- https://git.kernel.org/stable/c/659cc3d8d5ef246263873fce72c8cadeeed073cc
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.