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CVE-2026-80771 (GCVE-0-2026-80771)

Vulnerability from cvelistv5 – Published: 2026-09-04 15:12 – Updated: 2026-09-04 15:12
VLAI
Title
HID: nintendo: register input device after capabilities are set
Summary
In the Linux kernel, the following vulnerability has been resolved: HID: nintendo: register input device after capabilities are set input_register_device() exposes the device to userspace immediately. In joycon_input_create() it was called before joycon_config_rumble() configures the FF_RUMBLE capability and the memless force-feedback device, so a concurrent EVIOCSFF could dereference a NULL dev->ff. Registering early also means the initial udev event lacks button and axis information, which can make input managers ignore the device. Move input_register_device() to the end of joycon_input_create(), after all capabilities, the IMU input device and the force-feedback callbacks have been configured.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 2af16c1f846bd60240745bbd3afa13d5f040c61a , < 3288bec1a21d582b504344380139cdc0e88ebe4d (git)
Affected: 2af16c1f846bd60240745bbd3afa13d5f040c61a , < 268679f501386ad46405d42c2bcf89384cb5e256 (git)
Affected: 2af16c1f846bd60240745bbd3afa13d5f040c61a , < a9fc7547f911ada09da33c5e204e5acda38e765a (git)
Affected: 2af16c1f846bd60240745bbd3afa13d5f040c61a , < 27dc4b8eadac73b3c3cc526c8547d8b4ae8528be (git)
Affected: 2af16c1f846bd60240745bbd3afa13d5f040c61a , < d723bc1fe2e72b9252234e94c11af644ec477bf7 (git)
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Linux Linux Affected: 5.16
Unaffected: 0 , < 5.16 (semver)
Unaffected: 6.12.106 , ≤ 6.12.* (semver)
Unaffected: 6.18.47 , ≤ 6.18.* (semver)
Unaffected: 7.1.11 , ≤ 7.1.* (semver)
Unaffected: 7.2.1 , ≤ 7.2.* (semver)
Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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{
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: nintendo: register input device after capabilities are set\n\ninput_register_device() exposes the device to userspace immediately.\nIn joycon_input_create() it was called before joycon_config_rumble()\nconfigures the FF_RUMBLE capability and the memless force-feedback\ndevice, so a concurrent EVIOCSFF could dereference a NULL dev-\u003eff.\n\nRegistering early also means the initial udev event lacks button and\naxis information, which can make input managers ignore the device.\n\nMove input_register_device() to the end of joycon_input_create(), after\nall capabilities, the IMU input device and the force-feedback callbacks\nhave been configured."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-04T15:12:43.246Z",
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        "shortName": "Linux"
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      "title": "HID: nintendo: register input device after capabilities are set",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-80771",
    "datePublished": "2026-09-04T15:12:43.246Z",
    "dateReserved": "2026-08-26T14:34:25.792Z",
    "dateUpdated": "2026-09-04T15:12:43.246Z",
    "state": "PUBLISHED"
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  "dataVersion": "5.2",
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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

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.