FKIE_CVE-2022-49982

Vulnerability from fkie_nvd - Published: 2025-06-18 11:15 - Updated: 2026-06-17 05:19
Severity
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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/2fe46195d2f0d5d09ea65433aefe47a4d0d0ff4dPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/466b67c0543b2ae67814d053f6e29b39be6b33bbPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/491762b3250fb06a0c97b5198656ea48359eaeedPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/945a9a8e448b65bec055d37eba58f711b39f66f0Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ba7dd8a9686a61a34b3a7b922ce721378d4740d0Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bacb37bdc2a21c8f7fdc83dcc0dea2f4ca1341fbPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c02d2a91a85c4c4d05826cd1ea74a9b8d42e4280Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f2f6e67522916f53ad8ccd4dbe68dcf76e9776e5Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/media/usb/pvrusb2/pvrusb2-hdw.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "2fe46195d2f0d5d09ea65433aefe47a4d0d0ff4d",
              "status": "affected",
              "version": "b72b7bf5cbb2ae77b3bf748456655fc284baf04c",
              "versionType": "git"
            },
            {
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              "versionType": "git"
            },
            {
              "lessThan": "491762b3250fb06a0c97b5198656ea48359eaeed",
              "status": "affected",
              "version": "b72b7bf5cbb2ae77b3bf748456655fc284baf04c",
              "versionType": "git"
            },
            {
              "lessThan": "466b67c0543b2ae67814d053f6e29b39be6b33bb",
              "status": "affected",
              "version": "b72b7bf5cbb2ae77b3bf748456655fc284baf04c",
              "versionType": "git"
            },
            {
              "lessThan": "bacb37bdc2a21c8f7fdc83dcc0dea2f4ca1341fb",
              "status": "affected",
              "version": "b72b7bf5cbb2ae77b3bf748456655fc284baf04c",
              "versionType": "git"
            },
            {
              "lessThan": "f2f6e67522916f53ad8ccd4dbe68dcf76e9776e5",
              "status": "affected",
              "version": "b72b7bf5cbb2ae77b3bf748456655fc284baf04c",
              "versionType": "git"
            },
            {
              "lessThan": "c02d2a91a85c4c4d05826cd1ea74a9b8d42e4280",
              "status": "affected",
              "version": "b72b7bf5cbb2ae77b3bf748456655fc284baf04c",
              "versionType": "git"
            },
            {
              "lessThan": "945a9a8e448b65bec055d37eba58f711b39f66f0",
              "status": "affected",
              "version": "b72b7bf5cbb2ae77b3bf748456655fc284baf04c",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/media/usb/pvrusb2/pvrusb2-hdw.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.30"
            },
            {
              "lessThan": "2.6.30",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.9.*",
              "status": "unaffected",
              "version": "4.9.327",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.292",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.257",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.212",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.141",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.65",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.19.*",
              "status": "unaffected",
              "version": "5.19.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "3433BB10-41AC-4CF0-B19A-0EC09FF26272",
              "versionEndExcluding": "4.9.327",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "42DF7D19-F259-47AF-8715-288480443B27",
              "versionEndExcluding": "4.14.292",
              "versionStartIncluding": "4.10",
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            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "379F570B-8101-4252-AE1C-B802D441D9B4",
              "versionEndExcluding": "4.19.257",
              "versionStartIncluding": "4.15",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "BEFFBCD7-9B53-46AB-B3FD-53EAD80FD3E1",
              "versionEndExcluding": "5.4.212",
              "versionStartIncluding": "4.20",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "6872143E-BF6D-4DB5-8454-D843F608AB3B",
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              "versionStartIncluding": "5.5",
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            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "81162A58-341F-455C-96D5-6DF30A0F9295",
              "versionEndExcluding": "5.15.65",
              "versionStartIncluding": "5.11",
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            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "DEBCC9D9-2058-44E1-8A2E-ABC880E4DE50",
              "versionEndExcluding": "5.19.7",
              "versionStartIncluding": "5.16",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "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": "2026-06-17T05:19:40.607",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2025-06-18T11:15:25.720",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/2fe46195d2f0d5d09ea65433aefe47a4d0d0ff4d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
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      "url": "https://git.kernel.org/stable/c/491762b3250fb06a0c97b5198656ea48359eaeed"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
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      "url": "https://git.kernel.org/stable/c/945a9a8e448b65bec055d37eba58f711b39f66f0"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/ba7dd8a9686a61a34b3a7b922ce721378d4740d0"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/bacb37bdc2a21c8f7fdc83dcc0dea2f4ca1341fb"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/c02d2a91a85c4c4d05826cd1ea74a9b8d42e4280"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/f2f6e67522916f53ad8ccd4dbe68dcf76e9776e5"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-401"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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