{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2021-47367",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2024-05-21T14:58:30.810Z",
        "datePublished": "2024-05-21T15:03:33.861Z",
        "dateUpdated": "2026-05-11T13:53:20.233Z"
    },
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                "dateUpdated": "2026-05-11T13:53:20.233Z"
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                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvirtio-net: fix pages leaking when building skb in big mode\n\nWe try to use build_skb() if we had sufficient tailroom. But we forget\nto release the unused pages chained via private in big mode which will\nleak pages. Fixing this by release the pages after building the skb in\nbig mode."
                }
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                    "vendor": "Linux",
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                        "drivers/net/virtio_net.c"
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                            "status": "affected",
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                            "status": "affected"
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                            "status": "unaffected",
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                            "version": "5.14.9",
                            "lessThanOrEqual": "5.14.*",
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                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
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                            "negate": false,
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                                    "versionEndExcluding": "5.14.9"
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                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                                    "versionEndExcluding": "5.15"
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            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/f020bb63b5d2e5576acadd10e158fe3b04af67ba"
                },
                {
                    "url": "https://git.kernel.org/stable/c/afd92d82c9d715fb97565408755acad81573591a"
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            ],
            "title": "virtio-net: fix pages leaking when building skb in big mode",
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        "adp": [
            {
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                    {
                        "descriptions": [
                            {
                                "type": "CWE",
                                "cweId": "CWE-119",
                                "lang": "en",
                                "description": "CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer"
                            }
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                ],
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                        "product": "linux_kernel",
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                        ],
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                            "baseSeverity": "MEDIUM",
                            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
                            "integrityImpact": "NONE",
                            "userInteraction": "NONE",
                            "attackComplexity": "LOW",
                            "availabilityImpact": "NONE",
                            "privilegesRequired": "LOW",
                            "confidentialityImpact": "HIGH"
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                            "content": {
                                "timestamp": "2024-06-06T15:00:03.181537Z",
                                "id": "CVE-2021-47367",
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                                    },
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                                "role": "CISA Coordinator",
                                "version": "2.0.3"
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                "title": "CISA ADP Vulnrichment",
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                    "shortName": "CISA-ADP",
                    "dateUpdated": "2024-06-06T15:30:00.591Z"
                }
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                    "shortName": "CVE",
                    "dateUpdated": "2024-08-04T05:32:08.538Z"
                },
                "title": "CVE Program Container",
                "references": [
                    {
                        "url": "https://git.kernel.org/stable/c/f020bb63b5d2e5576acadd10e158fe3b04af67ba",
                        "tags": [
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