{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-89975",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-11T19:38:34.779Z",
        "datePublished": "2026-09-16T10:32:53.836Z",
        "dateUpdated": "2026-10-21T12:49:18.356Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-21T12:49:18.356Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvme-fabrics: fix DHCHAP secret leak on parse failure\n\nnvmf_parse_options() duplicates dhchap_secret and dhchap_ctrl_secret\nwith match_strdup() before validating the DHHC-1: representation.\n\nIf validation fails, the parser returns -EINVAL before the temporary\nstring in p is assigned to opts->dhchap_secret or\nopts->dhchap_ctrl_secret. nvmf_create_ctrl() subsequently frees opts,\nbut nvmf_free_options() cannot release the unassigned temporary string.\nEach rejected option therefore leaks one allocation.\n\nThis is easy to miss because valid secrets transfer ownership to opts\nand are freed normally, while the malformed-secret path still returns\nthe expected -EINVAL to userspace.\n\nWith CONFIG_NVME_HOST_AUTH enabled, the leak is reachable before the\nrequired-option checks and transport lookup. No NVMe-oF target or\nworking transport connection is required; for example, repeatedly\nwriting\n\n\tdhchap_secret=BAD\n\nor\n\n\tdhchap_ctrl_secret=BAD\n\nto /dev/nvme-fabrics deterministically takes the leaking parse path.\n\nFree the temporary string before leaving both validation error paths.\nUse kfree_sensitive() because the copied option may contain secret\nmaterial even when its representation is rejected, matching the\nsensitive cleanup used for stored DHCHAP secrets."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/nvme/host/fabrics.c"
                    ],
                    "versions": [
                        {
                            "version": "f50fff73d620cd6e8f48bc58d4f1c944615a3fea",
                            "lessThan": "3ce0e9b43f355dfa0bdc0e0dd889795752285791",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f50fff73d620cd6e8f48bc58d4f1c944615a3fea",
                            "lessThan": "702c1ae0d31b44828ec3c87079def490c1ee1fb3",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f50fff73d620cd6e8f48bc58d4f1c944615a3fea",
                            "lessThan": "15d7a35a489287109b5a7c157d53d9b8214f0318",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f50fff73d620cd6e8f48bc58d4f1c944615a3fea",
                            "lessThan": "d21da6cc91ba1c4f1ae5ba007f3cb89e1c0c7549",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f50fff73d620cd6e8f48bc58d4f1c944615a3fea",
                            "lessThan": "afdee49a1b88ed9bb44e2b30e855297c169bcc53",
                            "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/nvme/host/fabrics.c"
                    ],
                    "versions": [
                        {
                            "version": "6.0",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.0",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.160",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.110",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.51",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.5",
                            "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": "6.0",
                                    "versionEndExcluding": "6.6.160"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.0",
                                    "versionEndExcluding": "6.12.110"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.0",
                                    "versionEndExcluding": "6.18.51"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.0",
                                    "versionEndExcluding": "7.2.5"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.0",
                                    "versionEndExcluding": "7.3"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/3ce0e9b43f355dfa0bdc0e0dd889795752285791"
                },
                {
                    "url": "https://git.kernel.org/stable/c/702c1ae0d31b44828ec3c87079def490c1ee1fb3"
                },
                {
                    "url": "https://git.kernel.org/stable/c/15d7a35a489287109b5a7c157d53d9b8214f0318"
                },
                {
                    "url": "https://git.kernel.org/stable/c/d21da6cc91ba1c4f1ae5ba007f3cb89e1c0c7549"
                },
                {
                    "url": "https://git.kernel.org/stable/c/afdee49a1b88ed9bb44e2b30e855297c169bcc53"
                }
            ],
            "title": "nvme-fabrics: fix DHCHAP secret leak on parse failure",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}