ghsa-vq44-q98p-r6hq
Vulnerability from github
Published
2025-06-18 12:30
Modified
2025-06-18 12:30
Details

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

Input: iforce - wake up after clearing IFORCE_XMIT_RUNNING flag

syzbot is reporting hung task at __input_unregister_device() [1], for iforce_close() waiting at wait_event_interruptible() with dev->mutex held is blocking input_disconnect_device() from __input_unregister_device().

It seems that the cause is simply that commit c2b27ef672992a20 ("Input: iforce - wait for command completion when closing the device") forgot to call wake_up() after clear_bit().

Fix this problem by introducing a helper that calls clear_bit() followed by wake_up_all().

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{
  "affected": [],
  "aliases": [
    "CVE-2022-49954"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-06-18T11:15:22Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nInput: iforce - wake up after clearing IFORCE_XMIT_RUNNING flag\n\nsyzbot is reporting hung task at __input_unregister_device() [1], for\niforce_close() waiting at wait_event_interruptible() with dev-\u003emutex held\nis blocking input_disconnect_device() from __input_unregister_device().\n\nIt seems that the cause is simply that commit c2b27ef672992a20 (\"Input:\niforce - wait for command completion when closing the device\") forgot to\ncall wake_up() after clear_bit().\n\nFix this problem by introducing a helper that calls clear_bit() followed\nby wake_up_all().",
  "id": "GHSA-vq44-q98p-r6hq",
  "modified": "2025-06-18T12:30:37Z",
  "published": "2025-06-18T12:30:37Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49954"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/98e01215708b6d416345465c09dce2bd4868c67a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b271090eea3899399e2adcf79c9c95367d472b03"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b533b9d3a0d1327cbb31c201dc8dbbf98c8bfe3c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d186c65599bff0222da37b9215784ddfe39f9e1b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/df1b53bc799d58f79701c465505a206c72ad4ab8"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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