Vulnerability-Lookup

FKIE_CVE-2026-89474

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: bq256xx: drain usb_work before freeing the charger The USB-PHY notifier queues usb_work, whose handler calls power_supply_changed(bq->charger). The reset devm action only unregisters the notifier and was registered before the power supplies, so devm frees bq->charger on unwind before the action runs; a usb_work still queued can then dereference it. Register the reset action after the power supplies, so it unregisters the notifiers and drains usb_work before the supplies are released. Initialize usb_work and obtain the PHY references before registering the notifiers, so the worker cannot run before the supplies exist. Found by static analysis.

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/2cfb59dc9df8b5ebdd95e3d874a7f4690cee2bc8
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/2dd6cd823777bea6d9a880a12a92a73ec76aee0b
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/9a467bd1e6811011026ad4c8de701b940d88a00c
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/9dcfdf6c598301b278f0b3490eb2bf4f600524e2
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/9e1aba34df9a87d53460888e05718717c0f69343
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/c8addb842ae8dcf69c15fc976e33e3bd538a41d7
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/fd08d4dbbec07a44f01b0ddb041912be0dc88f8c

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/power/supply/bq256xx_charger.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "9dcfdf6c598301b278f0b3490eb2bf4f600524e2",
              "status": "affected",
              "version": "32e4978bb920d047fe5de3ea42d176f267c01f63",
              "versionType": "git"
            },
            {
              "lessThan": "fd08d4dbbec07a44f01b0ddb041912be0dc88f8c",
              "status": "affected",
              "version": "32e4978bb920d047fe5de3ea42d176f267c01f63",
              "versionType": "git"
            },
            {
              "lessThan": "2cfb59dc9df8b5ebdd95e3d874a7f4690cee2bc8",
              "status": "affected",
              "version": "32e4978bb920d047fe5de3ea42d176f267c01f63",
              "versionType": "git"
            },
            {
              "lessThan": "9a467bd1e6811011026ad4c8de701b940d88a00c",
              "status": "affected",
              "version": "32e4978bb920d047fe5de3ea42d176f267c01f63",
              "versionType": "git"
            },
            {
              "lessThan": "9e1aba34df9a87d53460888e05718717c0f69343",
              "status": "affected",
              "version": "32e4978bb920d047fe5de3ea42d176f267c01f63",
              "versionType": "git"
            },
            {
              "lessThan": "c8addb842ae8dcf69c15fc976e33e3bd538a41d7",
              "status": "affected",
              "version": "32e4978bb920d047fe5de3ea42d176f267c01f63",
              "versionType": "git"
            },
            {
              "lessThan": "2dd6cd823777bea6d9a880a12a92a73ec76aee0b",
              "status": "affected",
              "version": "32e4978bb920d047fe5de3ea42d176f267c01f63",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/power/supply/bq256xx_charger.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.12"
            },
            {
              "lessThan": "5.12",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.221",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.188",
              "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: bq256xx: drain usb_work before freeing the charger\n\nThe USB-PHY notifier queues usb_work, whose handler calls\npower_supply_changed(bq-\u003echarger). The reset devm action only unregisters\nthe notifier and was registered before the power supplies, so devm frees\nbq-\u003echarger on unwind before the action runs; a usb_work still queued can\nthen dereference it.\n\nRegister the reset action after the power supplies, so it unregisters\nthe notifiers and drains usb_work before the supplies are released.\nInitialize usb_work and obtain the PHY references before registering\nthe notifiers, so the worker cannot run before the supplies exist.\n\nFound by static analysis."
    }
  ],
  "id": "CVE-2026-89474",
  "lastModified": "2026-09-14T13:19:03.733",
  "metrics": {},
  "published": "2026-09-11T20:19:28.687",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/2cfb59dc9df8b5ebdd95e3d874a7f4690cee2bc8"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/2dd6cd823777bea6d9a880a12a92a73ec76aee0b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/9a467bd1e6811011026ad4c8de701b940d88a00c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/9dcfdf6c598301b278f0b3490eb2bf4f600524e2"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/9e1aba34df9a87d53460888e05718717c0f69343"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c8addb842ae8dcf69c15fc976e33e3bd538a41d7"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/fd08d4dbbec07a44f01b0ddb041912be0dc88f8c"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}

CVE-2026-89474 (GCVE-0-2026-89474)

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

Title

power: supply: bq256xx: drain usb_work before freeing the charger

Summary

Severity

No CVSS data available.

Assigner

Linux mitre root

References

7 references

URL	Tags
https://git.kernel.org/stable/c/9dcfdf6c598301b27…
https://git.kernel.org/stable/c/fd08d4dbbec07a44f…
https://git.kernel.org/stable/c/2cfb59dc9df8b5ebd…
https://git.kernel.org/stable/c/9a467bd1e68110110…
https://git.kernel.org/stable/c/9e1aba34df9a87d53…
https://git.kernel.org/stable/c/c8addb842ae8dcf69…
https://git.kernel.org/stable/c/2dd6cd823777bea6d…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 32e4978bb920d047fe5de3ea42d176f267c01f63 , < 9dcfdf6c598301b278f0b3490eb2bf4f600524e2 (git) Affected: 32e4978bb920d047fe5de3ea42d176f267c01f63 , < fd08d4dbbec07a44f01b0ddb041912be0dc88f8c (git) Affected: 32e4978bb920d047fe5de3ea42d176f267c01f63 , < 2cfb59dc9df8b5ebdd95e3d874a7f4690cee2bc8 (git) Affected: 32e4978bb920d047fe5de3ea42d176f267c01f63 , < 9a467bd1e6811011026ad4c8de701b940d88a00c (git) Affected: 32e4978bb920d047fe5de3ea42d176f267c01f63 , < 9e1aba34df9a87d53460888e05718717c0f69343 (git) Affected: 32e4978bb920d047fe5de3ea42d176f267c01f63 , < c8addb842ae8dcf69c15fc976e33e3bd538a41d7 (git) Affected: 32e4978bb920d047fe5de3ea42d176f267c01f63 , < 2dd6cd823777bea6d9a880a12a92a73ec76aee0b (git)
Linux	Linux	Affected: 5.12 Unaffected: 0 , < 5.12 (semver) Unaffected: 5.15.221 , ≤ 5.15.* (semver) Unaffected: 6.1.188 , ≤ 6.1.* (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/bq256xx_charger.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "9dcfdf6c598301b278f0b3490eb2bf4f600524e2",
              "status": "affected",
              "version": "32e4978bb920d047fe5de3ea42d176f267c01f63",
              "versionType": "git"
            },
            {
              "lessThan": "fd08d4dbbec07a44f01b0ddb041912be0dc88f8c",
              "status": "affected",
              "version": "32e4978bb920d047fe5de3ea42d176f267c01f63",
              "versionType": "git"
            },
            {
              "lessThan": "2cfb59dc9df8b5ebdd95e3d874a7f4690cee2bc8",
              "status": "affected",
              "version": "32e4978bb920d047fe5de3ea42d176f267c01f63",
              "versionType": "git"
            },
            {
              "lessThan": "9a467bd1e6811011026ad4c8de701b940d88a00c",
              "status": "affected",
              "version": "32e4978bb920d047fe5de3ea42d176f267c01f63",
              "versionType": "git"
            },
            {
              "lessThan": "9e1aba34df9a87d53460888e05718717c0f69343",
              "status": "affected",
              "version": "32e4978bb920d047fe5de3ea42d176f267c01f63",
              "versionType": "git"
            },
            {
              "lessThan": "c8addb842ae8dcf69c15fc976e33e3bd538a41d7",
              "status": "affected",
              "version": "32e4978bb920d047fe5de3ea42d176f267c01f63",
              "versionType": "git"
            },
            {
              "lessThan": "2dd6cd823777bea6d9a880a12a92a73ec76aee0b",
              "status": "affected",
              "version": "32e4978bb920d047fe5de3ea42d176f267c01f63",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/power/supply/bq256xx_charger.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.12"
            },
            {
              "lessThan": "5.12",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.221",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.188",
              "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": "5.15.221",
                  "versionStartIncluding": "5.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.188",
                  "versionStartIncluding": "5.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.157",
                  "versionStartIncluding": "5.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.109",
                  "versionStartIncluding": "5.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.50",
                  "versionStartIncluding": "5.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.4",
                  "versionStartIncluding": "5.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3-rc1",
                  "versionStartIncluding": "5.12",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npower: supply: bq256xx: drain usb_work before freeing the charger\n\nThe USB-PHY notifier queues usb_work, whose handler calls\npower_supply_changed(bq-\u003echarger). The reset devm action only unregisters\nthe notifier and was registered before the power supplies, so devm frees\nbq-\u003echarger on unwind before the action runs; a usb_work still queued can\nthen dereference it.\n\nRegister the reset action after the power supplies, so it unregisters\nthe notifiers and drains usb_work before the supplies are released.\nInitialize usb_work and obtain the PHY references before registering\nthe notifiers, so the worker cannot run before the supplies exist.\n\nFound by static analysis."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-14T12:00:10.678Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/9dcfdf6c598301b278f0b3490eb2bf4f600524e2"
        },
        {
          "url": "https://git.kernel.org/stable/c/fd08d4dbbec07a44f01b0ddb041912be0dc88f8c"
        },
        {
          "url": "https://git.kernel.org/stable/c/2cfb59dc9df8b5ebdd95e3d874a7f4690cee2bc8"
        },
        {
          "url": "https://git.kernel.org/stable/c/9a467bd1e6811011026ad4c8de701b940d88a00c"
        },
        {
          "url": "https://git.kernel.org/stable/c/9e1aba34df9a87d53460888e05718717c0f69343"
        },
        {
          "url": "https://git.kernel.org/stable/c/c8addb842ae8dcf69c15fc976e33e3bd538a41d7"
        },
        {
          "url": "https://git.kernel.org/stable/c/2dd6cd823777bea6d9a880a12a92a73ec76aee0b"
        }
      ],
      "title": "power: supply: bq256xx: drain usb_work before freeing the charger",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-89474",
    "datePublished": "2026-09-11T19:43:31.882Z",
    "dateReserved": "2026-09-11T19:38:34.710Z",
    "dateUpdated": "2026-09-14T12:00:10.678Z",
    "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

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.