{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2021-47534",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2024-05-24T15:02:54.826Z",
        "datePublished": "2024-05-24T15:09:43.344Z",
        "dateUpdated": "2026-05-11T13:56:31.293Z"
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                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/vc4: kms: Add missing drm_crtc_commit_put\n\nCommit 9ec03d7f1ed3 (\"drm/vc4: kms: Wait on previous FIFO users before a\ncommit\") introduced a global state for the HVS, with each FIFO storing\nthe current CRTC commit so that we can properly synchronize commits.\n\nHowever, the refcounting was off and we thus ended up leaking the\ndrm_crtc_commit structure every commit. Add a drm_crtc_commit_put to\nprevent the leakage."
                }
            ],
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                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/gpu/drm/vc4/vc4_kms.c"
                    ],
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                            "version": "9ec03d7f1ed394897891319a4dda75f52c5d292d",
                            "lessThan": "53f9601e908d42481addd67cdb01a9288c611124",
                            "status": "affected",
                            "versionType": "git"
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                            "lessThan": "049cfff8d53a30cae3349ff71a4c01b7d9981bc2",
                            "status": "affected",
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                    ],
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                            "version": "5.12",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.12",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
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                            "version": "5.15.7",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.16",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
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                            "operator": "OR",
                            "negate": false,
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                                    "vulnerable": true,
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                                    "versionEndExcluding": "5.15.7"
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                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/53f9601e908d42481addd67cdb01a9288c611124"
                },
                {
                    "url": "https://git.kernel.org/stable/c/049cfff8d53a30cae3349ff71a4c01b7d9981bc2"
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            ],
            "title": "drm/vc4: kms: Add missing drm_crtc_commit_put",
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                                "description": "CWE-noinfo Not enough information"
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                    }
                ],
                "metrics": [
                    {
                        "cvssV3_1": {
                            "scope": "UNCHANGED",
                            "version": "3.1",
                            "baseScore": 4.1,
                            "attackVector": "LOCAL",
                            "baseSeverity": "MEDIUM",
                            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H",
                            "integrityImpact": "NONE",
                            "userInteraction": "NONE",
                            "attackComplexity": "HIGH",
                            "availabilityImpact": "HIGH",
                            "privilegesRequired": "HIGH",
                            "confidentialityImpact": "NONE"
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                            "type": "ssvc",
                            "content": {
                                "timestamp": "2024-05-29T16:50:30.871991Z",
                                "id": "CVE-2021-47534",
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                                        "Exploitation": "none"
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                                "role": "CISA Coordinator",
                                "version": "2.0.3"
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                "title": "CVE Program Container",
                "references": [
                    {
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                        "tags": [
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