{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-93210",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-17T16:02:15.093Z",
        "datePublished": "2026-09-24T15:10:33.577Z",
        "dateUpdated": "2026-09-25T12:42:37.060Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-09-25T12:42:37.060Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: harden DFS cache against invalid target hints\n\nCurrently, get_tgt_name() returns ERR_PTR(-ENOENT) when ce->tgthint is\nNULL, and dfs_cache_noreq_update_tgthint() assumes ce->tgthint is always\nvalid.\n\nIn preparation for clearing ce->tgthint in free_tgts(), harden callers\nof get_tgt_name() against ERR_PTR results and harden\ndfs_cache_noreq_update_tgthint() against NULL pointer dereferences."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/smb/client/dfs_cache.c"
                    ],
                    "versions": [
                        {
                            "version": "54be1f6c1c37498bba557049df646cc239fa37e3",
                            "lessThan": "a48328afbc3f63e3b9de8827e2e16c15b17976f7",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "54be1f6c1c37498bba557049df646cc239fa37e3",
                            "lessThan": "6cb7f9fed8f40f28fbd464ca99c946951afc0952",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "54be1f6c1c37498bba557049df646cc239fa37e3",
                            "lessThan": "66dbcdbb0cadffd12eb8f2b115fd57d384c5109d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "54be1f6c1c37498bba557049df646cc239fa37e3",
                            "lessThan": "846f0709559b9e27024e126a80bc7afb76516912",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "54be1f6c1c37498bba557049df646cc239fa37e3",
                            "lessThan": "7e32da6047d9afdae8dd17b87b4c8d97363c4ee2",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "54be1f6c1c37498bba557049df646cc239fa37e3",
                            "lessThan": "bf86c08123c6ab8c61cc0be1dad7540db93738ff",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/smb/client/dfs_cache.c"
                    ],
                    "versions": [
                        {
                            "version": "5.0",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.0",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.188",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.157",
                            "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-rc1",
                            "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": "5.0",
                                    "versionEndExcluding": "6.1.188"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.0",
                                    "versionEndExcluding": "6.6.157"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.0",
                                    "versionEndExcluding": "6.12.109"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.0",
                                    "versionEndExcluding": "6.18.50"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.0",
                                    "versionEndExcluding": "7.2.4"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.0",
                                    "versionEndExcluding": "7.3-rc1"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/a48328afbc3f63e3b9de8827e2e16c15b17976f7"
                },
                {
                    "url": "https://git.kernel.org/stable/c/6cb7f9fed8f40f28fbd464ca99c946951afc0952"
                },
                {
                    "url": "https://git.kernel.org/stable/c/66dbcdbb0cadffd12eb8f2b115fd57d384c5109d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/846f0709559b9e27024e126a80bc7afb76516912"
                },
                {
                    "url": "https://git.kernel.org/stable/c/7e32da6047d9afdae8dd17b87b4c8d97363c4ee2"
                },
                {
                    "url": "https://git.kernel.org/stable/c/bf86c08123c6ab8c61cc0be1dad7540db93738ff"
                }
            ],
            "title": "smb: client: harden DFS cache against invalid target hints",
            "x_generator": {
                "engine": "bippy-1.2.0"
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        }
    }
}