fkie_cve-2022-49962
Vulnerability from fkie_nvd
Published
2025-06-18 11:15
Modified
2025-06-18 13:46
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: xhci: Fix null pointer dereference in remove if xHC has only one roothub The remove path in xhci platform driver tries to remove and put both main and shared hcds even if only a main hcd exists (one roothub) This causes a null pointer dereference in reboot for those controllers. Check that the shared_hcd exists before trying to remove it.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4a593a62a9e3a25ab4bc37f612e4edec144f7f43
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7081b2f34ff291ada012bd6abacaf7d51c4cf73f
Impacted products
Vendor Product Version


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{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nxhci: Fix null pointer dereference in remove if xHC has only one roothub\n\nThe remove path in xhci platform driver tries to remove and put both main\nand shared hcds even if only a main hcd exists (one roothub)\n\nThis causes a null pointer dereference in reboot for those controllers.\n\nCheck that the shared_hcd exists before trying to remove it."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: xhci: Se corrige la desreferencia de puntero nulo al eliminar si xHC solo tiene un concentrador ra\u00edz. La ruta de eliminaci\u00f3n en el controlador de la plataforma xhci intenta eliminar e instalar los discos duros principal y compartido, incluso si solo existe un disco duro principal (un concentrador ra\u00edz). Esto provoca una desreferencia de puntero nulo al reiniciar esos controladores. Compruebe que el disco duro compartido exista antes de intentar eliminarlo."
    }
  ],
  "id": "CVE-2022-49962",
  "lastModified": "2025-06-18T13:46:52.973",
  "metrics": {},
  "published": "2025-06-18T11:15:23.457",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/4a593a62a9e3a25ab4bc37f612e4edec144f7f43"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/7081b2f34ff291ada012bd6abacaf7d51c4cf73f"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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