{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-99245",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-25T10:25:14.403Z",
        "datePublished": "2026-11-03T11:15:15.050Z",
        "dateUpdated": "2026-11-03T11:15:43.589Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-11-03T11:15:43.589Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nKEYS: Fix key_reject_and_link() race with keyring restriction\n\nThe restrict_link check in key_reject_and_link() is done before taking\nthe keyring semaphore, racing with a concurrent keyring_restrict()\nthat installs the restriction while holding the semaphore in write\nmode.\n\nMove the check to after __key_link_lock(), so it is done under the\nsemaphore, matching the pattern used in __key_create_or_update()."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "security/keys/key.c"
                    ],
                    "versions": [
                        {
                            "version": "5ac7eace2d00eab5ae0e9fdee63e38aee6001f7c",
                            "lessThan": "c7956ec99ad0e173720d95de9fa788bb077809f2",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5ac7eace2d00eab5ae0e9fdee63e38aee6001f7c",
                            "lessThan": "2c3d907dd15f4e30d4c35b9f7a7a5078de6a1b1f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5ac7eace2d00eab5ae0e9fdee63e38aee6001f7c",
                            "lessThan": "72f367417a6aee56821d0b0114cfd2b080008b63",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5ac7eace2d00eab5ae0e9fdee63e38aee6001f7c",
                            "lessThan": "19dfc37c9deefa69dc805d01d35d1f2fd7902e33",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5ac7eace2d00eab5ae0e9fdee63e38aee6001f7c",
                            "lessThan": "5787887eba0f0979a8c86d03a8e891395d5c24ad",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5ac7eace2d00eab5ae0e9fdee63e38aee6001f7c",
                            "lessThan": "01835d3a3709be508ae5209f806640336c48e395",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5ac7eace2d00eab5ae0e9fdee63e38aee6001f7c",
                            "lessThan": "6fc0c818b1cac66003e937c8a0d3bfb23fd3f130",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5ac7eace2d00eab5ae0e9fdee63e38aee6001f7c",
                            "lessThan": "23a9163cc40b4996ba1e20533b1210a1a0bee416",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "security/keys/key.c"
                    ],
                    "versions": [
                        {
                            "version": "4.7",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "4.7",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.273",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.224",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.191",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.161",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.115",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.60",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.14",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3.1",
                            "lessThanOrEqual": "7.3.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.7",
                                    "versionEndExcluding": "5.10.273"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.7",
                                    "versionEndExcluding": "5.15.224"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.7",
                                    "versionEndExcluding": "6.1.191"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.7",
                                    "versionEndExcluding": "6.6.161"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.7",
                                    "versionEndExcluding": "6.12.115"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.7",
                                    "versionEndExcluding": "6.18.60"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.7",
                                    "versionEndExcluding": "7.2.14"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.7",
                                    "versionEndExcluding": "7.3.1"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/c7956ec99ad0e173720d95de9fa788bb077809f2"
                },
                {
                    "url": "https://git.kernel.org/stable/c/2c3d907dd15f4e30d4c35b9f7a7a5078de6a1b1f"
                },
                {
                    "url": "https://git.kernel.org/stable/c/72f367417a6aee56821d0b0114cfd2b080008b63"
                },
                {
                    "url": "https://git.kernel.org/stable/c/19dfc37c9deefa69dc805d01d35d1f2fd7902e33"
                },
                {
                    "url": "https://git.kernel.org/stable/c/5787887eba0f0979a8c86d03a8e891395d5c24ad"
                },
                {
                    "url": "https://git.kernel.org/stable/c/01835d3a3709be508ae5209f806640336c48e395"
                },
                {
                    "url": "https://git.kernel.org/stable/c/6fc0c818b1cac66003e937c8a0d3bfb23fd3f130"
                },
                {
                    "url": "https://git.kernel.org/stable/c/23a9163cc40b4996ba1e20533b1210a1a0bee416"
                }
            ],
            "title": "KEYS: Fix key_reject_and_link() race with keyring restriction",
            "x_generator": {
                "engine": "bippy-1.2.0"
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        }
    }
}