{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-23261",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-01-13T15:37:45.990Z",
        "datePublished": "2026-03-18T17:41:07.478Z",
        "dateUpdated": "2026-05-23T16:04:22.947Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-23T16:04:22.947Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvme-fc: release admin tagset if init fails\n\nnvme_fabrics creates an NVMe/FC controller in following path:\n\n    nvmf_dev_write()\n      -> nvmf_create_ctrl()\n        -> nvme_fc_create_ctrl()\n          -> nvme_fc_init_ctrl()\n\nnvme_fc_init_ctrl() allocates the admin blk-mq resources right after\nnvme_add_ctrl() succeeds.  If any of the subsequent steps fail (changing\nthe controller state, scheduling connect work, etc.), we jump to the\nfail_ctrl path, which tears down the controller references but never\nfrees the admin queue/tag set.  The leaked blk-mq allocations match the\nkmemleak report seen during blktests nvme/fc.\n\nCheck ctrl->ctrl.admin_tagset in the fail_ctrl path and call\nnvme_remove_admin_tag_set() when it is set so that all admin queue\nallocations are reclaimed whenever controller setup aborts."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/nvme/host/fc.c"
                    ],
                    "versions": [
                        {
                            "version": "5fe335a80548e2eda5d51fab801108b323600e95",
                            "lessThan": "7c54d3f5ebbc5982daaa004260242dc07ac943ea",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "17c3a66d7ea2d303f783796d62f99e2e23b68c90",
                            "lessThan": "fa301aef50e3f3b5be6ee53457608beae5aa7a01",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ea3442efabd0aa3930c5bab73c3901ef38ef6ac3",
                            "lessThan": "e810b290922c535feb34bc90ab549446fe94d2a3",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ea3442efabd0aa3930c5bab73c3901ef38ef6ac3",
                            "lessThan": "d1877cc7270302081a315a81a0ee8331f19f95c8",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "0d1840b2dd8fe073c020c39bf8e8e89488070801",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6.6.118",
                            "lessThan": "6.6.124",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.60",
                            "lessThan": "6.12.70",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.17.10",
                            "lessThan": "6.18",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/nvme/host/fc.c"
                    ],
                    "versions": [
                        {
                            "version": "6.18",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.18",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.124",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.70",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.10",
                            "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": "6.6.118",
                                    "versionEndExcluding": "6.6.124"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.12.60",
                                    "versionEndExcluding": "6.12.70"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.18",
                                    "versionEndExcluding": "6.18.10"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.18",
                                    "versionEndExcluding": "6.19"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.17.10"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/7c54d3f5ebbc5982daaa004260242dc07ac943ea"
                },
                {
                    "url": "https://git.kernel.org/stable/c/fa301aef50e3f3b5be6ee53457608beae5aa7a01"
                },
                {
                    "url": "https://git.kernel.org/stable/c/e810b290922c535feb34bc90ab549446fe94d2a3"
                },
                {
                    "url": "https://git.kernel.org/stable/c/d1877cc7270302081a315a81a0ee8331f19f95c8"
                }
            ],
            "title": "nvme-fc: release admin tagset if init fails",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}