{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-89439",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-11T19:38:34.703Z",
        "datePublished": "2026-09-11T19:43:08.745Z",
        "dateUpdated": "2026-10-21T12:47:27.422Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-21T12:47:27.422Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nplatform/x86: ISST: Add a NULL check for sst_inst[]\n\nTo be consistent with other places, add a NULL check for failed socket\nloading by checking isst_common.sst_inst[]."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/platform/x86/intel/speed_select_if/isst_tpmi_core.c"
                    ],
                    "versions": [
                        {
                            "version": "d805456c712f93ba8a012430f2a93bec133b6ff4",
                            "lessThan": "f7c9370dd1d3cedb80c635528271cab1d0bcb103",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "d805456c712f93ba8a012430f2a93bec133b6ff4",
                            "lessThan": "49a95fe1f64f41c2e8959e525aefdb10f23b293e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "d805456c712f93ba8a012430f2a93bec133b6ff4",
                            "lessThan": "c280fcd53b938b70c7dee9ce1a66b32bd6e5ebaa",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "d805456c712f93ba8a012430f2a93bec133b6ff4",
                            "lessThan": "ef7975af15126dd70ace519da7bb33f2848b9064",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "d805456c712f93ba8a012430f2a93bec133b6ff4",
                            "lessThan": "3de2776e9d7073765c10c2326c2bda5926811ea6",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/platform/x86/intel/speed_select_if/isst_tpmi_core.c"
                    ],
                    "versions": [
                        {
                            "version": "6.4",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.4",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.160",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.109",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.50",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.4",
                            "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": "6.4",
                                    "versionEndExcluding": "6.6.160"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.4",
                                    "versionEndExcluding": "6.12.109"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.4",
                                    "versionEndExcluding": "6.18.50"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.4",
                                    "versionEndExcluding": "7.2.4"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.4",
                                    "versionEndExcluding": "7.3"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/f7c9370dd1d3cedb80c635528271cab1d0bcb103"
                },
                {
                    "url": "https://git.kernel.org/stable/c/49a95fe1f64f41c2e8959e525aefdb10f23b293e"
                },
                {
                    "url": "https://git.kernel.org/stable/c/c280fcd53b938b70c7dee9ce1a66b32bd6e5ebaa"
                },
                {
                    "url": "https://git.kernel.org/stable/c/ef7975af15126dd70ace519da7bb33f2848b9064"
                },
                {
                    "url": "https://git.kernel.org/stable/c/3de2776e9d7073765c10c2326c2bda5926811ea6"
                }
            ],
            "title": "platform/x86: ISST: Add a NULL check for sst_inst[]",
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}