{
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    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2021-47070",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2024-02-29T22:33:44.296Z",
        "datePublished": "2024-03-01T21:15:09.387Z",
        "dateUpdated": "2026-05-11T13:47:29.928Z"
    },
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            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nuio_hv_generic: Fix another memory leak in error handling paths\n\nMemory allocated by 'vmbus_alloc_ring()' at the beginning of the probe\nfunction is never freed in the error handling path.\n\nAdd the missing 'vmbus_free_ring()' call.\n\nNote that it is already freed in the .remove function."
                }
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                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/uio/uio_hv_generic.c"
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                            "version": "cdfa835c6e5e87d145f9f632b58843de97509f2b",
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                            "status": "affected",
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                            "lessThan": "5f59240cf25b2f7a0fdffc2701482a70310fec07",
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                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
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                            "version": "4.20",
                            "status": "affected"
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                        {
                            "version": "0",
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                            "status": "unaffected",
                            "versionType": "semver"
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                        {
                            "version": "5.10.241",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.12.7",
                            "lessThanOrEqual": "5.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.13",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.20",
                                    "versionEndExcluding": "5.10.241"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.20",
                                    "versionEndExcluding": "5.12.7"
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                                {
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                                    "versionStartIncluding": "4.20",
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            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/261bbd90cc53d2835343f056770156cf1e82cf03"
                },
                {
                    "url": "https://git.kernel.org/stable/c/5f59240cf25b2f7a0fdffc2701482a70310fec07"
                },
                {
                    "url": "https://git.kernel.org/stable/c/0b0226be3a52dadd965644bc52a807961c2c26df"
                }
            ],
            "title": "uio_hv_generic: Fix another memory leak in error handling paths",
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        "adp": [
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                            {
                                "type": "CWE",
                                "lang": "en",
                                "description": "CWE-noinfo Not enough information"
                            }
                        ]
                    }
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                "metrics": [
                    {
                        "cvssV3_1": {
                            "scope": "UNCHANGED",
                            "version": "3.1",
                            "baseScore": 5.5,
                            "attackVector": "LOCAL",
                            "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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                    },
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2024-03-05T19:35:32.485237Z",
                                "id": "CVE-2021-47070",
                                "options": [
                                    {
                                        "Exploitation": "none"
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                                "role": "CISA Coordinator",
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                "title": "CISA ADP Vulnrichment",
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                    "shortName": "CISA-ADP",
                    "dateUpdated": "2024-11-04T18:26:07.449Z"
                }
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            {
                "title": "CVE Program Container",
                "references": [
                    {
                        "url": "https://git.kernel.org/stable/c/5f59240cf25b2f7a0fdffc2701482a70310fec07",
                        "tags": [
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                        "tags": [
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                    {
                        "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"
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