CVE-2022-49954 (GCVE-0-2022-49954)
Vulnerability from cvelistv5
Published
2025-06-18 11:00
Modified
2025-06-18 11:00
Severity ?
Summary
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().
References
Impacted products
Vendor Product Version
Linux Linux Version: c2b27ef672992a206e5b221b8676972dd840ffa5
Version: c2b27ef672992a206e5b221b8676972dd840ffa5
Version: c2b27ef672992a206e5b221b8676972dd840ffa5
Version: c2b27ef672992a206e5b221b8676972dd840ffa5
Version: c2b27ef672992a206e5b221b8676972dd840ffa5
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{
  "containers": {
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/input/joystick/iforce/iforce-serio.c",
            "drivers/input/joystick/iforce/iforce-usb.c",
            "drivers/input/joystick/iforce/iforce.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
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          "programFiles": [
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            "drivers/input/joystick/iforce/iforce-usb.c",
            "drivers/input/joystick/iforce/iforce.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "version": "2.6.33"
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              "status": "unaffected",
              "version": "0",
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              "status": "unaffected",
              "version": "5.4.213",
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            {
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              "status": "unaffected",
              "version": "5.10.142",
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            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.66",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.19.*",
              "status": "unaffected",
              "version": "5.19.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.0",
              "versionType": "original_commit_for_fix"
            }
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      ],
      "cpeApplicability": [
        {
          "nodes": [
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              "negate": false,
              "operator": "OR"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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()."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-06-18T11:00:16.928Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/d186c65599bff0222da37b9215784ddfe39f9e1b"
        },
        {
          "url": "https://git.kernel.org/stable/c/b271090eea3899399e2adcf79c9c95367d472b03"
        },
        {
          "url": "https://git.kernel.org/stable/c/df1b53bc799d58f79701c465505a206c72ad4ab8"
        },
        {
          "url": "https://git.kernel.org/stable/c/b533b9d3a0d1327cbb31c201dc8dbbf98c8bfe3c"
        },
        {
          "url": "https://git.kernel.org/stable/c/98e01215708b6d416345465c09dce2bd4868c67a"
        }
      ],
      "title": "Input: iforce - wake up after clearing IFORCE_XMIT_RUNNING flag",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49954",
    "datePublished": "2025-06-18T11:00:16.928Z",
    "dateReserved": "2025-06-18T10:57:27.382Z",
    "dateUpdated": "2025-06-18T11:00:16.928Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-49954\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-06-18T11:15:22.500\",\"lastModified\":\"2025-06-18T13:46:52.973\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"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().\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: Entrada: iforce - reactivar tras borrar el indicador IFORCE_XMIT_RUNNING. syzbot informa que la tarea est\u00e1 bloqueada en __input_unregister_device() [1], ya que iforce_close() espera en wait_event_interruptible() con dev-\u0026gt;mutex retenido, lo que bloquea input_disconnect_device() desde __input_unregister_device(). Parece que la causa es simplemente que el commit c2b27ef672992a20 (\\\"Entrada: iforce - esperar a que se complete el comando al cerrar el dispositivo\\\") olvid\u00f3 llamar a wake_up() despu\u00e9s de clear_bit(). Se soluciona este problema mediante un asistente que llame a clear_bit() seguido de wake_up_all().\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/98e01215708b6d416345465c09dce2bd4868c67a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/b271090eea3899399e2adcf79c9c95367d472b03\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/b533b9d3a0d1327cbb31c201dc8dbbf98c8bfe3c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d186c65599bff0222da37b9215784ddfe39f9e1b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/df1b53bc799d58f79701c465505a206c72ad4ab8\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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