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CVE-2026-89623 (GCVE-0-2026-89623)

Vulnerability from cvelistv5 – Published: 2026-09-11 19:45 – Updated: 2026-09-14 12:01
VLAI
Title
HID: mcp2221: stop device IO before hid_hw_stop
Summary
In the Linux kernel, the following vulnerability has been resolved: HID: mcp2221: stop device IO before hid_hw_stop Quiesce device IO at the start of the devm cleanup callback mcp2221_hid_unregister() so that incoming HID reports cannot race with hardware teardown during probe failure or device removal, addressing a potential use-after-free. Guard the call to hid_device_io_stop() with io_started. On normal removal hid_device_remove() has already cleared io_started before the devres group is released, so an unconditional call would otherwise hit the !io_started path and emit a spurious "io already stopped" warning on every removal. The guard preserves the probe-failure balancing, where io_started is still set after hid_device_io_start(), while staying silent on the normal removal path.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: d4b50ac06ea6e47bdd2b04e97d1090c673c80645 , < 85d963499f1feeea287c0a37c3eac3fc1898eca9 (git)
Affected: d4b50ac06ea6e47bdd2b04e97d1090c673c80645 , < 0ae90a19e6b5a8557d25d95facb7e01c9c07af38 (git)
Affected: d4b50ac06ea6e47bdd2b04e97d1090c673c80645 , < c99ba6c234d4d537c317336376b78c088174034a (git)
Affected: d4b50ac06ea6e47bdd2b04e97d1090c673c80645 , < 2eda1513f573945c1e3a0090341f3d28740463b1 (git)
Affected: d4b50ac06ea6e47bdd2b04e97d1090c673c80645 , < dca151633c0fde90935311c60e7cfc064aa56134 (git)
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Linux Linux Affected: 6.6.8 , < 6.6.157 (semver)
Affected: 6.6.8 , < 6.12.109 (semver)
Affected: 6.6.8 , < 6.18.50 (semver)
Affected: 6.6.8 , < 7.2.4 (semver)
Affected: 6.6.8 , < 7.3-rc1 (semver)
guessed Create a notification for this product.
Show details on NVD website
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{
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          "product": "Linux",
          "programFiles": [
            "drivers/hid/hid-mcp2221.c"
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    "dateReserved": "2026-09-11T19:38:34.737Z",
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}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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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.


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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.