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GHSA-X6PF-56PG-Q32P

Vulnerability from github – Published: 2026-09-04 18:31 – Updated: 2026-09-04 18:31
VLAI
Details

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.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-80771"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-04T16:18:02Z",
    "severity": null
  },
  "details": "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.",
  "id": "GHSA-x6pf-56pg-q32p",
  "modified": "2026-09-04T18:31:25Z",
  "published": "2026-09-04T18:31:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-80771"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/268679f501386ad46405d42c2bcf89384cb5e256"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/27dc4b8eadac73b3c3cc526c8547d8b4ae8528be"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3288bec1a21d582b504344380139cdc0e88ebe4d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a9fc7547f911ada09da33c5e204e5acda38e765a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d723bc1fe2e72b9252234e94c11af644ec477bf7"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}



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