Vulnerability-Lookup

GHSA-PF33-MH27-RP5J

Vulnerability from github – Published: 2026-09-11 21:31 – Updated: 2026-09-14 15:32

Details

In the Linux kernel, the following vulnerability has been resolved:

power: supply: twl4030_charger: cancel workers via devm

bci is devm-allocated. Two workers (bci->work and bci->current_worker) dereference it. twl4030_bci_remove() disables charging and masks interrupts. It cancels neither worker. A worker pending at remove() can run after devm frees bci.

The USB transceiver comes from devm_usb_get_phy_by_node(). devm unregisters its notifier only after remove() returns. A cancel_work_sync() in remove() can then race a notifier reschedule. devm_work_autocancel() and devm_delayed_work_autocancel() avoid that. They cancel the workers during devm release, before bci is freed.

The current_worker is registered first, since devm will cancel in reverse order and bci->work can reschedule current_worker.

[Move comment about order into the commit message]

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{
  "affected": [],
  "aliases": [
    "CVE-2026-89464"
  ],
  "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: twl4030_charger: cancel workers via devm\n\nbci is devm-allocated. Two workers (bci-\u003ework and bci-\u003ecurrent_worker)\ndereference it. twl4030_bci_remove() disables charging and masks\ninterrupts. It cancels neither worker. A worker pending at remove() can\nrun after devm frees bci.\n\nThe USB transceiver comes from devm_usb_get_phy_by_node(). devm\nunregisters its notifier only after remove() returns. A cancel_work_sync()\nin remove() can then race a notifier reschedule. devm_work_autocancel()\nand devm_delayed_work_autocancel() avoid that. They cancel the workers\nduring devm release, before bci is freed.\n\nThe current_worker is registered first, since devm will cancel in\nreverse order and bci-\u003ework can reschedule current_worker.\n\n[Move comment about order into the commit message]",
  "id": "GHSA-pf33-mh27-rp5j",
  "modified": "2026-09-14T15:32:24Z",
  "published": "2026-09-11T21:31:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-89464"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6eba34732524067da2aad5ddfdfbc641ded10e9e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/72a2d6cd049f892853e4e2d8d8fc5e7d0244a458"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9644c96ef8646c65d46caa5139a6631e29b79d6c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a4460e89d4088cfec2da5be33e265ef1a8e780e9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b955da82db4170bdf1c784dc457287aa0c977378"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c46c205bab0dfce4dd54aeb49da3f183e1fdfc63"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e9fffe10bd791082263c1678f2f6cdd6d7b487e0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-89464 (GCVE-0-2026-89464)

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

Title

power: supply: twl4030_charger: cancel workers via devm

Summary

In the Linux kernel, the following vulnerability has been resolved: power: supply: twl4030_charger: cancel workers via devm bci is devm-allocated. Two workers (bci->work and bci->current_worker) dereference it. twl4030_bci_remove() disables charging and masks interrupts. It cancels neither worker. A worker pending at remove() can run after devm frees bci. The USB transceiver comes from devm_usb_get_phy_by_node(). devm unregisters its notifier only after remove() returns. A cancel_work_sync() in remove() can then race a notifier reschedule. devm_work_autocancel() and devm_delayed_work_autocancel() avoid that. They cancel the workers during devm release, before bci is freed. The current_worker is registered first, since devm will cancel in reverse order and bci->work can reschedule current_worker. [Move comment about order into the commit message]

Severity

No CVSS data available.

Assigner

Linux mitre root

References

7 references

URL	Tags
https://git.kernel.org/stable/c/9644c96ef8646c65d…
https://git.kernel.org/stable/c/e9fffe10bd7910822…
https://git.kernel.org/stable/c/c46c205bab0dfce4d…
https://git.kernel.org/stable/c/72a2d6cd049f89285…
https://git.kernel.org/stable/c/a4460e89d4088cfec…
https://git.kernel.org/stable/c/b955da82db4170bdf…
https://git.kernel.org/stable/c/6eba34732524067da…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: d6ccc442b12102414c1343f0adacaa8a1aaa516c , < 9644c96ef8646c65d46caa5139a6631e29b79d6c (git) Affected: d6ccc442b12102414c1343f0adacaa8a1aaa516c , < e9fffe10bd791082263c1678f2f6cdd6d7b487e0 (git) Affected: d6ccc442b12102414c1343f0adacaa8a1aaa516c , < c46c205bab0dfce4dd54aeb49da3f183e1fdfc63 (git) Affected: d6ccc442b12102414c1343f0adacaa8a1aaa516c , < 72a2d6cd049f892853e4e2d8d8fc5e7d0244a458 (git) Affected: d6ccc442b12102414c1343f0adacaa8a1aaa516c , < a4460e89d4088cfec2da5be33e265ef1a8e780e9 (git) Affected: d6ccc442b12102414c1343f0adacaa8a1aaa516c , < b955da82db4170bdf1c784dc457287aa0c977378 (git) Affected: d6ccc442b12102414c1343f0adacaa8a1aaa516c , < 6eba34732524067da2aad5ddfdfbc641ded10e9e (git)
Linux	Linux	Affected: 2.6.39 Unaffected: 0 , < 2.6.39 (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)

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        }
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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.

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.

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