{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-97446",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-24T14:53:16.870Z",
        "datePublished": "2026-09-24T16:04:01.612Z",
        "dateUpdated": "2026-10-03T10:58:30.858Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-03T10:58:30.858Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nACPICA: Fix NULL pointer dereference in acpi_ns_custom_package()\n\nacpi_ns_custom_package() unconditionally dereferences the first element\nof the package to read the _BIX version number, without checking for\nNULL:\n\n    if ((*Elements)->Common.Type != ACPI_TYPE_INTEGER)\n\nWhen firmware returns a _BIX package whose first element is an\nunresolvable reference, ACPICA evaluates that entry to NULL.\nacpi_ns_remove_null_elements() does not strip NULL entries for\nACPI_PTYPE_CUSTOM packages (fixed-position format would break if\nelements were shifted), so acpi_ns_custom_package() sees the NULL\nand causes a crash.\n\nAdd a NULL check for the first element (version field) before\ndereferencing it. The caller then receives AE_AML_OPERAND_TYPE\ninstead of crashing."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/acpi/acpica/nsprepkg.c"
                    ],
                    "versions": [
                        {
                            "version": "7952d40240855932de01bbe81c02bf1416ec91d8",
                            "lessThan": "fad537538cdfcdc51e41db61bbf9ebe5ed9427eb",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7952d40240855932de01bbe81c02bf1416ec91d8",
                            "lessThan": "9936507ac0f2379787a2a805b11ab1cf0f241372",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7952d40240855932de01bbe81c02bf1416ec91d8",
                            "lessThan": "644888605f55395e6012ed43e3ed643ef7ab5013",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7952d40240855932de01bbe81c02bf1416ec91d8",
                            "lessThan": "08c5dee5da1d8d99b5a4e94db5a3d873c491771e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7952d40240855932de01bbe81c02bf1416ec91d8",
                            "lessThan": "3762c6c8ae5073892d7cec736cc54270c7c9ce90",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7952d40240855932de01bbe81c02bf1416ec91d8",
                            "lessThan": "3cbf096a478f4fa03953f0685ad28c9c82ce67cb",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7952d40240855932de01bbe81c02bf1416ec91d8",
                            "lessThan": "f8d14b7bb0063bbbd86c0e4d73edb8cea7b362bc",
                            "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/acpi/acpica/nsprepkg.c"
                    ],
                    "versions": [
                        {
                            "version": "4.7",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "4.7",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.271",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.222",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.189",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.158",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.111",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.53",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2",
                            "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": "4.7",
                                    "versionEndExcluding": "5.10.271"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.7",
                                    "versionEndExcluding": "5.15.222"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.7",
                                    "versionEndExcluding": "6.1.189"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.7",
                                    "versionEndExcluding": "6.6.158"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.7",
                                    "versionEndExcluding": "6.12.111"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.7",
                                    "versionEndExcluding": "6.18.53"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.7",
                                    "versionEndExcluding": "7.2"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/fad537538cdfcdc51e41db61bbf9ebe5ed9427eb"
                },
                {
                    "url": "https://git.kernel.org/stable/c/9936507ac0f2379787a2a805b11ab1cf0f241372"
                },
                {
                    "url": "https://git.kernel.org/stable/c/644888605f55395e6012ed43e3ed643ef7ab5013"
                },
                {
                    "url": "https://git.kernel.org/stable/c/08c5dee5da1d8d99b5a4e94db5a3d873c491771e"
                },
                {
                    "url": "https://git.kernel.org/stable/c/3762c6c8ae5073892d7cec736cc54270c7c9ce90"
                },
                {
                    "url": "https://git.kernel.org/stable/c/3cbf096a478f4fa03953f0685ad28c9c82ce67cb"
                },
                {
                    "url": "https://git.kernel.org/stable/c/f8d14b7bb0063bbbd86c0e4d73edb8cea7b362bc"
                }
            ],
            "title": "ACPICA: Fix NULL pointer dereference in acpi_ns_custom_package()",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}