{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-98222",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-25T10:25:14.327Z",
        "datePublished": "2026-10-06T08:44:57.621Z",
        "dateUpdated": "2026-10-19T09:15:54.199Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-19T09:15:54.199Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nKEYS: encrypted: fix integer overflow of datablob_len\n\nencrypted_key_alloc() stores datablob_len in a u16. It is computed from\nmultiple string and payload lengths. If the result exceeds U16_MAX, the\nassignment truncates the allocation size. KASAN reports a 32760-byte\nslab-out-of-bounds write when __ekey_init() copies the master key\ndescription into the undersized buffer.\n\nThe total payload length stored in key->datalen is also a u16. Use\ncheck_add_overflow() to reject values that do not fit either destination,\nand use kzalloc_flex() for the flexible-array allocation."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "security/keys/encrypted-keys/encrypted.c"
                    ],
                    "versions": [
                        {
                            "version": "7e70cb4978507cf31d76b90e4cfb4c28cad87f0c",
                            "lessThan": "1e720f63dbafc093a8f5d519f05b67724993edd4",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7e70cb4978507cf31d76b90e4cfb4c28cad87f0c",
                            "lessThan": "a1a98eca102b1cbbc37ff9eaa197ae4e6a3ea4b0",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7e70cb4978507cf31d76b90e4cfb4c28cad87f0c",
                            "lessThan": "cca38f2102a4cd35eda8d48950df4817b4b24757",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7e70cb4978507cf31d76b90e4cfb4c28cad87f0c",
                            "lessThan": "8697c431e297eb0d0ab13dda6bc172b48a34f05c",
                            "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/encrypted-keys/encrypted.c"
                    ],
                    "versions": [
                        {
                            "version": "2.6.38",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "2.6.38",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.112",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.54",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.8",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3",
                            "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": "2.6.38",
                                    "versionEndExcluding": "6.12.112"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.38",
                                    "versionEndExcluding": "6.18.54"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.38",
                                    "versionEndExcluding": "7.2.8"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.38",
                                    "versionEndExcluding": "7.3"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/1e720f63dbafc093a8f5d519f05b67724993edd4"
                },
                {
                    "url": "https://git.kernel.org/stable/c/a1a98eca102b1cbbc37ff9eaa197ae4e6a3ea4b0"
                },
                {
                    "url": "https://git.kernel.org/stable/c/cca38f2102a4cd35eda8d48950df4817b4b24757"
                },
                {
                    "url": "https://git.kernel.org/stable/c/8697c431e297eb0d0ab13dda6bc172b48a34f05c"
                }
            ],
            "title": "KEYS: encrypted: fix integer overflow of datablob_len",
            "x_generator": {
                "engine": "bippy-1.2.0"
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        }
    }
}