Vulnerability-Lookup

FKIE_CVE-2026-89473

Vulnerability from fkie_nvd - Published: 2026-09-11 20:19 - Updated: 2026-09-14 13:19

Severity

Summary

In the Linux kernel, the following vulnerability has been resolved: power: supply: bq25890: Fix power_supply reference leak bq25890_fw_probe() acquires a reference to a secondary charger using power_supply_get_by_name(), but the reference is not released on later probe failures or on driver detach. In particular, failures after bq25890_fw_probe() returns successfully, such as a failure in bq25890_hw_init(), also leak the reference. Register a device-managed cleanup action immediately after acquiring the secondary charger. This releases the reference on all subsequent probe failures and on driver detach. Found by code review.

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/238320ad029a3eedabb86286a28cab55bca629b9
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/58f1025eca92734eadc063715b98f62538286468
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/81b558afda9321c1a70971a39071d156f3e26950
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/863c32a83e4235eb0cbf6106f2b124e645302156
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/976c10d883a02968f3f58be0cee499d1fd2ba68a

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/power/supply/bq25890_charger.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "976c10d883a02968f3f58be0cee499d1fd2ba68a",
              "status": "affected",
              "version": "d54bf877fd878ee45cbc88d399fb98b0b1c4484d",
              "versionType": "git"
            },
            {
              "lessThan": "81b558afda9321c1a70971a39071d156f3e26950",
              "status": "affected",
              "version": "d54bf877fd878ee45cbc88d399fb98b0b1c4484d",
              "versionType": "git"
            },
            {
              "lessThan": "238320ad029a3eedabb86286a28cab55bca629b9",
              "status": "affected",
              "version": "d54bf877fd878ee45cbc88d399fb98b0b1c4484d",
              "versionType": "git"
            },
            {
              "lessThan": "58f1025eca92734eadc063715b98f62538286468",
              "status": "affected",
              "version": "d54bf877fd878ee45cbc88d399fb98b0b1c4484d",
              "versionType": "git"
            },
            {
              "lessThan": "863c32a83e4235eb0cbf6106f2b124e645302156",
              "status": "affected",
              "version": "d54bf877fd878ee45cbc88d399fb98b0b1c4484d",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/power/supply/bq25890_charger.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.3"
            },
            {
              "lessThan": "6.3",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.157",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.109",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.50",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npower: supply: bq25890: Fix power_supply reference leak\n\nbq25890_fw_probe() acquires a reference to a secondary charger using\npower_supply_get_by_name(), but the reference is not released on later\nprobe failures or on driver detach.\n\nIn particular, failures after bq25890_fw_probe() returns successfully,\nsuch as a failure in bq25890_hw_init(), also leak the reference.\n\nRegister a device-managed cleanup action immediately after acquiring\nthe secondary charger. This releases the reference on all subsequent\nprobe failures and on driver detach.\n\nFound by code review."
    }
  ],
  "id": "CVE-2026-89473",
  "lastModified": "2026-09-14T13:19:03.620",
  "metrics": {},
  "published": "2026-09-11T20:19:28.530",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/238320ad029a3eedabb86286a28cab55bca629b9"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/58f1025eca92734eadc063715b98f62538286468"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/81b558afda9321c1a70971a39071d156f3e26950"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/863c32a83e4235eb0cbf6106f2b124e645302156"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/976c10d883a02968f3f58be0cee499d1fd2ba68a"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}

CVE-2026-89473 (GCVE-0-2026-89473)

Vulnerability from cvelistv5 – Published: 2026-09-11 19:43 – Updated: 2026-09-14 12:00

Title

power: supply: bq25890: Fix power_supply reference leak

Summary

Severity

No CVSS data available.

Assigner

Linux mitre root

References

5 references

URL	Tags
https://git.kernel.org/stable/c/976c10d883a02968f…
https://git.kernel.org/stable/c/81b558afda9321c1a…
https://git.kernel.org/stable/c/238320ad029a3eeda…
https://git.kernel.org/stable/c/58f1025eca92734ea…
https://git.kernel.org/stable/c/863c32a83e4235eb0…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: d54bf877fd878ee45cbc88d399fb98b0b1c4484d , < 976c10d883a02968f3f58be0cee499d1fd2ba68a (git) Affected: d54bf877fd878ee45cbc88d399fb98b0b1c4484d , < 81b558afda9321c1a70971a39071d156f3e26950 (git) Affected: d54bf877fd878ee45cbc88d399fb98b0b1c4484d , < 238320ad029a3eedabb86286a28cab55bca629b9 (git) Affected: d54bf877fd878ee45cbc88d399fb98b0b1c4484d , < 58f1025eca92734eadc063715b98f62538286468 (git) Affected: d54bf877fd878ee45cbc88d399fb98b0b1c4484d , < 863c32a83e4235eb0cbf6106f2b124e645302156 (git)
Linux	Linux	Affected: 6.3 Unaffected: 0 , < 6.3 (semver) Unaffected: 6.6.157 , ≤ 6.6.* (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)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/power/supply/bq25890_charger.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "976c10d883a02968f3f58be0cee499d1fd2ba68a",
              "status": "affected",
              "version": "d54bf877fd878ee45cbc88d399fb98b0b1c4484d",
              "versionType": "git"
            },
            {
              "lessThan": "81b558afda9321c1a70971a39071d156f3e26950",
              "status": "affected",
              "version": "d54bf877fd878ee45cbc88d399fb98b0b1c4484d",
              "versionType": "git"
            },
            {
              "lessThan": "238320ad029a3eedabb86286a28cab55bca629b9",
              "status": "affected",
              "version": "d54bf877fd878ee45cbc88d399fb98b0b1c4484d",
              "versionType": "git"
            },
            {
              "lessThan": "58f1025eca92734eadc063715b98f62538286468",
              "status": "affected",
              "version": "d54bf877fd878ee45cbc88d399fb98b0b1c4484d",
              "versionType": "git"
            },
            {
              "lessThan": "863c32a83e4235eb0cbf6106f2b124e645302156",
              "status": "affected",
              "version": "d54bf877fd878ee45cbc88d399fb98b0b1c4484d",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/power/supply/bq25890_charger.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.3"
            },
            {
              "lessThan": "6.3",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.157",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.109",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.50",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.157",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.109",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.50",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.4",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3-rc1",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npower: supply: bq25890: Fix power_supply reference leak\n\nbq25890_fw_probe() acquires a reference to a secondary charger using\npower_supply_get_by_name(), but the reference is not released on later\nprobe failures or on driver detach.\n\nIn particular, failures after bq25890_fw_probe() returns successfully,\nsuch as a failure in bq25890_hw_init(), also leak the reference.\n\nRegister a device-managed cleanup action immediately after acquiring\nthe secondary charger. This releases the reference on all subsequent\nprobe failures and on driver detach.\n\nFound by code review."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-14T12:00:09.611Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/976c10d883a02968f3f58be0cee499d1fd2ba68a"
        },
        {
          "url": "https://git.kernel.org/stable/c/81b558afda9321c1a70971a39071d156f3e26950"
        },
        {
          "url": "https://git.kernel.org/stable/c/238320ad029a3eedabb86286a28cab55bca629b9"
        },
        {
          "url": "https://git.kernel.org/stable/c/58f1025eca92734eadc063715b98f62538286468"
        },
        {
          "url": "https://git.kernel.org/stable/c/863c32a83e4235eb0cbf6106f2b124e645302156"
        }
      ],
      "title": "power: supply: bq25890: Fix power_supply reference leak",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-89473",
    "datePublished": "2026-09-11T19:43:31.214Z",
    "dateReserved": "2026-09-11T19:38:34.710Z",
    "dateUpdated": "2026-09-14T12:00:09.611Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

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