fkie_cve-2025-38114
Vulnerability from fkie_nvd
Published
2025-07-03 09:15
Modified
2025-07-03 15:13
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: e1000: Move cancel_work_sync to avoid deadlock Previously, e1000_down called cancel_work_sync for the e1000 reset task (via e1000_down_and_stop), which takes RTNL. As reported by users and syzbot, a deadlock is possible in the following scenario: CPU 0: - RTNL is held - e1000_close - e1000_down - cancel_work_sync (cancel / wait for e1000_reset_task()) CPU 1: - process_one_work - e1000_reset_task - take RTNL To remedy this, avoid calling cancel_work_sync from e1000_down (e1000_reset_task does nothing if the device is down anyway). Instead, call cancel_work_sync for e1000_reset_task when the device is being removed.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1fd4438ddcc4958ed24662d5125114299e19bae4
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b4a8085ceefb7bbb12c2b71c55e71fc946c6929f
Impacted products
Vendor Product Version


To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ne1000: Move cancel_work_sync to avoid deadlock\n\nPreviously, e1000_down called cancel_work_sync for the e1000 reset task\n(via e1000_down_and_stop), which takes RTNL.\n\nAs reported by users and syzbot, a deadlock is possible in the following\nscenario:\n\nCPU 0:\n  - RTNL is held\n  - e1000_close\n  - e1000_down\n  - cancel_work_sync (cancel / wait for e1000_reset_task())\n\nCPU 1:\n  - process_one_work\n  - e1000_reset_task\n  - take RTNL\n\nTo remedy this, avoid calling cancel_work_sync from e1000_down\n(e1000_reset_task does nothing if the device is down anyway). Instead,\ncall cancel_work_sync for e1000_reset_task when the device is being\nremoved."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: e1000: mover cancel_work_sync para evitar el interbloqueo Anteriormente, e1000_down llamaba a cancel_work_sync para la tarea de reinicio de e1000 (a trav\u00e9s de e1000_down_and_stop), que toma RTNL. Seg\u00fan lo informado por los usuarios y syzbot, es posible que se produzca un interbloqueo en el siguiente escenario: CPU 0: - Se mantiene RTNL - e1000_close - e1000_down - cancel_work_sync (cancelar/esperar a e1000_reset_task()) CPU 1: - process_one_work - e1000_reset_task - tomar RTNL Para remediar esto, evite llamar a cancel_work_sync desde e1000_down (e1000_reset_task no hace nada si el dispositivo est\u00e1 inactivo de todos modos). En su lugar, llame a cancel_work_sync para e1000_reset_task cuando se est\u00e9 quitando el dispositivo."
    }
  ],
  "id": "CVE-2025-38114",
  "lastModified": "2025-07-03T15:13:53.147",
  "metrics": {},
  "published": "2025-07-03T09:15:25.227",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/1fd4438ddcc4958ed24662d5125114299e19bae4"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b4a8085ceefb7bbb12c2b71c55e71fc946c6929f"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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