{
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    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2025-21666",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2024-12-29T08:45:45.733Z",
        "datePublished": "2025-01-31T11:25:31.138Z",
        "dateUpdated": "2026-05-12T12:03:08.150Z"
    },
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                "dateUpdated": "2026-05-11T21:04:05.814Z"
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                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvsock: prevent null-ptr-deref in vsock_*[has_data|has_space]\n\nRecent reports have shown how we sometimes call vsock_*_has_data()\nwhen a vsock socket has been de-assigned from a transport (see attached\nlinks), but we shouldn't.\n\nPrevious commits should have solved the real problems, but we may have\nmore in the future, so to avoid null-ptr-deref, we can return 0\n(no space, no data available) but with a warning.\n\nThis way the code should continue to run in a nearly consistent state\nand have a warning that allows us to debug future problems."
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                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
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                    ],
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                            "status": "affected"
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                            "versionType": "semver"
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                        {
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                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
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                            "status": "unaffected",
                            "versionType": "semver"
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                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.74",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.11",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.13",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
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                            "operator": "OR",
                            "negate": false,
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                                    "versionEndExcluding": "5.10.234"
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                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                                    "versionEndExcluding": "5.15.177"
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                {
                    "url": "https://git.kernel.org/stable/c/daeac89cdb03d30028186f5ff7dc26ec8fa843e7"
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                    "url": "https://git.kernel.org/stable/c/91751e248256efc111e52e15115840c35d85abaf"
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                            "attackComplexity": "LOW",
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                            "privilegesRequired": "LOW",
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                                "lang": "en",
                                "type": "CWE",
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                "title": "CVE Program Container",
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                    {
                        "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"
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