{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "c6f4a42de60b981dd210de01cd3e575835e3158e"
            },
            {
              "fixed": "2943a0edd4865ed744702ada647921c3981207f6"
            },
            {
              "fixed": "13fb0477da9b400071b9d518b24d6434c4965263"
            },
            {
              "fixed": "c7aa4c3708cc0d8487336f8281665eaea87130f6"
            },
            {
              "fixed": "659cc3d8d5ef246263873fce72c8cadeeed073cc"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.6.31"
            },
            {
              "fixed": "6.12.109"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.50"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89462.json"
  },
  "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": "CVE-2026-89462",
  "modified": "2026-09-13T03:30:40.581543125Z",
  "published": "2026-09-11T19:43:23.984Z",
  "references": [
    {
      "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"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89462.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-89462"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "power: supply: max17040: propagate register read errors"
}