CVE-2026-89462power: supply: max17040: propagate register read errors
- —Not scoredno CVSS score yet
- 0.21%Exploitation in 30 daysEPSS · top 89% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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.
Timeline
ID reserved
By Linux
Published
- 49 days later
· 49 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.21% · top 89% of all CVEs (14 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected c6f4a42de60b981dd210de01cd3e575835e3158e – < abf348c40cd409db72758377f1eb6ed400c981c6
- affected c6f4a42de60b981dd210de01cd3e575835e3158e – < bcdcbef9c5e69a1e79c6b9f6a3434da2f68724ed
- affected c6f4a42de60b981dd210de01cd3e575835e3158e – < 2943a0edd4865ed744702ada647921c3981207f6
- affected c6f4a42de60b981dd210de01cd3e575835e3158e – < 13fb0477da9b400071b9d518b24d6434c4965263
- affected c6f4a42de60b981dd210de01cd3e575835e3158e – < c7aa4c3708cc0d8487336f8281665eaea87130f6
- affected c6f4a42de60b981dd210de01cd3e575835e3158e – < 659cc3d8d5ef246263873fce72c8cadeeed073cc
- affected 2.6.31
- unaffected < 2.6.31
- unaffected 6.1.191 – ≤ 6.1.*
- unaffected 6.6.160 – ≤ 6.6.*
- unaffected 6.12.109 – ≤ 6.12.*
- unaffected 6.18.50 – ≤ 6.18.*
- unaffected 7.2.4 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References6
- https://git.kernel.org/stable/c/abf348c40cd409db72758377f1eb6ed400c981c6 (opens in a new tab)
- https://git.kernel.org/stable/c/bcdcbef9c5e69a1e79c6b9f6a3434da2f68724ed (opens in a new tab)
- https://git.kernel.org/stable/c/2943a0edd4865ed744702ada647921c3981207f6 (opens in a new tab)
- https://git.kernel.org/stable/c/13fb0477da9b400071b9d518b24d6434c4965263 (opens in a new tab)
- https://git.kernel.org/stable/c/c7aa4c3708cc0d8487336f8281665eaea87130f6 (opens in a new tab)
- https://git.kernel.org/stable/c/659cc3d8d5ef246263873fce72c8cadeeed073cc (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-76368 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-89462)Record last updated .