{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-23042",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-01-13T15:37:45.944Z",
        "datePublished": "2026-02-04T16:00:25.466Z",
        "dateUpdated": "2026-05-11T21:58:52.636Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T21:58:52.636Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nidpf: fix aux device unplugging when rdma is not supported by vport\n\nIf vport flags do not contain VIRTCHNL2_VPORT_ENABLE_RDMA, driver does not\nallocate vdev_info for this vport. This leads to kernel NULL pointer\ndereference in idpf_idc_vport_dev_down(), which references vdev_info for\nevery vport regardless.\n\nCheck, if vdev_info was ever allocated before unplugging aux device."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/ethernet/intel/idpf/idpf_idc.c"
                    ],
                    "versions": [
                        {
                            "version": "be91128c579c86d295da4325f6ac4710e4e6d2b4",
                            "lessThan": "0ad6d6e50e9d8bf596cfe77a882ddc20b29f525a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "be91128c579c86d295da4325f6ac4710e4e6d2b4",
                            "lessThan": "4648fb2f2e7210c53b85220ee07d42d1e4bae3f9",
                            "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/net/ethernet/intel/idpf/idpf_idc.c"
                    ],
                    "versions": [
                        {
                            "version": "6.17",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.17",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.6",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.19",
                            "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": "6.17",
                                    "versionEndExcluding": "6.18.6"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.17",
                                    "versionEndExcluding": "6.19"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/0ad6d6e50e9d8bf596cfe77a882ddc20b29f525a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/4648fb2f2e7210c53b85220ee07d42d1e4bae3f9"
                }
            ],
            "title": "idpf: fix aux device unplugging when rdma is not supported by vport",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}