CVE-2022-49982 (GCVE-0-2022-49982)
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: 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
Impacted products
Vendor Product Version
Linux Linux Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
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{
  "containers": {
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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/media/usb/pvrusb2/pvrusb2-hdw.c"
          ],
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          ],
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          "vendor": "Linux",
          "versions": [
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              "version": "5.19.7",
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              "version": "6.0",
              "versionType": "original_commit_for_fix"
            }
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      ],
      "cpeApplicability": [
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      "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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-06-18T11:00:44.285Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/2fe46195d2f0d5d09ea65433aefe47a4d0d0ff4d"
        },
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          "url": "https://git.kernel.org/stable/c/ba7dd8a9686a61a34b3a7b922ce721378d4740d0"
        },
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          "url": "https://git.kernel.org/stable/c/491762b3250fb06a0c97b5198656ea48359eaeed"
        },
        {
          "url": "https://git.kernel.org/stable/c/466b67c0543b2ae67814d053f6e29b39be6b33bb"
        },
        {
          "url": "https://git.kernel.org/stable/c/bacb37bdc2a21c8f7fdc83dcc0dea2f4ca1341fb"
        },
        {
          "url": "https://git.kernel.org/stable/c/f2f6e67522916f53ad8ccd4dbe68dcf76e9776e5"
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          "url": "https://git.kernel.org/stable/c/c02d2a91a85c4c4d05826cd1ea74a9b8d42e4280"
        },
        {
          "url": "https://git.kernel.org/stable/c/945a9a8e448b65bec055d37eba58f711b39f66f0"
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      ],
      "title": "media: pvrusb2: fix memory leak in pvr_probe",
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49982",
    "datePublished": "2025-06-18T11:00:44.285Z",
    "dateReserved": "2025-06-18T10:57:27.385Z",
    "dateUpdated": "2025-06-18T11:00:44.285Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-49982\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-06-18T11:15:25.720\",\"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\\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.\"}],\"metrics\":{},\"references\":[{\"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\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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