fkie_cve-2022-49982
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: media: pvrusb2: fix memory leak in pvr_probe The error handling code in pvr2_hdw_create forgets to unregister the v4l2 device. When pvr2_hdw_create returns back to pvr2_context_create, it calls pvr2_context_destroy to destroy context, but mp->hdw is NULL, which leads to that pvr2_hdw_destroy directly returns. Fix this by adding v4l2_device_unregister to decrease the refcount of usb interface.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2fe46195d2f0d5d09ea65433aefe47a4d0d0ff4d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/466b67c0543b2ae67814d053f6e29b39be6b33bb
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/491762b3250fb06a0c97b5198656ea48359eaeed
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/945a9a8e448b65bec055d37eba58f711b39f66f0
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ba7dd8a9686a61a34b3a7b922ce721378d4740d0
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bacb37bdc2a21c8f7fdc83dcc0dea2f4ca1341fb
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c02d2a91a85c4c4d05826cd1ea74a9b8d42e4280
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f2f6e67522916f53ad8ccd4dbe68dcf76e9776e5
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\nmedia: pvrusb2: fix memory leak in pvr_probe\n\nThe error handling code in pvr2_hdw_create forgets to unregister the\nv4l2 device. When pvr2_hdw_create returns back to pvr2_context_create,\nit calls pvr2_context_destroy to destroy context, but mp-\u003ehdw is NULL,\nwhich leads to that pvr2_hdw_destroy directly returns.\n\nFix this by adding v4l2_device_unregister to decrease the refcount of\nusb interface."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: media: pvrusb2: se corrige una fuga de memoria en pvr_probe. El c\u00f3digo de gesti\u00f3n de errores en pvr2_hdw_create olvida anular el registro del dispositivo v4l2. Cuando pvr2_hdw_create regresa a pvr2_context_create, llama a pvr2_context_destroy para destruir el contexto, pero mp-\u0026gt;hdw es NULL, lo que provoca que pvr2_hdw_destroy regrese directamente. Para solucionar esto, agregue v4l2_device_unregister para reducir el recuento de referencias de la interfaz USB."
    }
  ],
  "id": "CVE-2022-49982",
  "lastModified": "2025-06-18T13:46:52.973",
  "metrics": {},
  "published": "2025-06-18T11:15:25.720",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/2fe46195d2f0d5d09ea65433aefe47a4d0d0ff4d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/466b67c0543b2ae67814d053f6e29b39be6b33bb"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/491762b3250fb06a0c97b5198656ea48359eaeed"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/945a9a8e448b65bec055d37eba58f711b39f66f0"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ba7dd8a9686a61a34b3a7b922ce721378d4740d0"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/bacb37bdc2a21c8f7fdc83dcc0dea2f4ca1341fb"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c02d2a91a85c4c4d05826cd1ea74a9b8d42e4280"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/f2f6e67522916f53ad8ccd4dbe68dcf76e9776e5"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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