Vulnerability-Lookup

GHSA-2JG4-H8V3-7354

Vulnerability from github – Published: 2026-09-11 21:31 – Updated: 2026-09-11 21:31

Details

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.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-89462"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-11T20:19:27Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\npower: supply: max17040: propagate register read errors\n\nmax17040_get_vcell() and max17040_get_soc() ignore errors returned by\nregmap_read().  When an I2C transfer fails, the uninitialized register\nvalue is converted and reported to userspace as a valid voltage or state\nof charge.  The polling worker can also replace the cached state of charge\nwith the bogus value and emit a spurious change event.\n\nPropagate read errors through the power supply get_property callback and\nkeep the last valid cached state of charge when polling fails.",
  "id": "GHSA-2jg4-h8v3-7354",
  "modified": "2026-09-11T21:31:27Z",
  "published": "2026-09-11T21:31:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-89462"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/13fb0477da9b400071b9d518b24d6434c4965263"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2943a0edd4865ed744702ada647921c3981207f6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/659cc3d8d5ef246263873fce72c8cadeeed073cc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c7aa4c3708cc0d8487336f8281665eaea87130f6"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-89462 (GCVE-0-2026-89462)

Vulnerability from cvelistv5 – Published: 2026-09-11 19:43 – Updated: 2026-09-11 19:43

Title

power: supply: max17040: propagate register read errors

Summary

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.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

4 references

URL	Tags
https://git.kernel.org/stable/c/2943a0edd4865ed74…
https://git.kernel.org/stable/c/13fb0477da9b40007…
https://git.kernel.org/stable/c/c7aa4c3708cc0d848…
https://git.kernel.org/stable/c/659cc3d8d5ef24626…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: c6f4a42de60b981dd210de01cd3e575835e3158e , < 2943a0edd4865ed744702ada647921c3981207f6 (git) Affected: c6f4a42de60b981dd210de01cd3e575835e3158e , < 13fb0477da9b400071b9d518b24d6434c4965263 (git) Affected: c6f4a42de60b981dd210de01cd3e575835e3158e , < c7aa4c3708cc0d8487336f8281665eaea87130f6 (git) Affected: c6f4a42de60b981dd210de01cd3e575835e3158e , < 659cc3d8d5ef246263873fce72c8cadeeed073cc (git)
Linux	Linux	Affected: 2.6.31 Unaffected: 0 , < 2.6.31 (semver) Unaffected: 6.12.109 , ≤ 6.12.* (semver) Unaffected: 6.18.50 , ≤ 6.18.* (semver) Unaffected: 7.2.4 , ≤ 7.2.* (semver) Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix)

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{
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      "affected": [
        {
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          "programFiles": [
            "drivers/power/supply/max17040_battery.c"
          ],
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              "versionType": "git"
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          "versions": [
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              "versionType": "semver"
            },
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    "dateReserved": "2026-09-11T19:38:34.708Z",
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}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

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