{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-72208",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-08-09T03:40:39.912Z",
        "datePublished": "2026-08-15T05:54:04.022Z",
        "dateUpdated": "2026-08-18T06:56:28.443Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-08-18T06:56:28.443Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nntfs: add bounds check before accessing EA entries\n\nin ntfs_ea_lookup and ntfs_listxattr, this verifies that there is enough\nspace in the EA entry before accessing the next_entry_offset field of\nthe EA entry."
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                        "baseScore": 9.8,
                        "baseSeverity": "CRITICAL"
                    },
                    "scenarios": [
                        {
                            "lang": "en",
                            "value": "AV:N - NTFS registers NFS export ops and is commonly served via nfsd/ksmbd; remote SMB/NFS OPEN, GETXATTR, or LISTXATTRS on an exported NTFS volume reaches ntfs_ea_lookup/ntfs_listxattr on the server without local login.\nAC:L - Triggering is deterministic once a crafted $EA/$EA_INFORMATION chain is on disk; the attacker controls next_entry_offset values to land with fewer than sizeof(struct ea_attr) bytes left, forcing the out-of-bounds read every time.\nPR:N - Exploitation needs only permission to access files on an exported NTFS share (e.g., guest/anonymous SMB or world-readable NFS); no root, CAP_SYS_ADMIN, or init-namespace privileges are required on the server to hit the parser.\nUI:N - After the NTFS volume is mounted server-side, a remote client can trigger parsing automatically via normal file open or xattr RPCs; no additional victim interaction is needed per attack.\nS:U - Impact is confined to kernel memory and privileges on the host parsing the NTFS image; it does not cross a VM, container, or IOMMU security boundary by itself.\nC:H - The bug reads struct ea_attr fields past the bounded EA query length before validation, causing an out-of-bounds kernel heap read that can disclose adjacent slab memory and feed attacker-influenced values into further EA parsing.\nI:H - Malformed next_entry_offset chaining drives additional unchecked memcmp/memcpy over attacker-chosen offsets inside the EA buffer, providing standard kernel heap grooming primitives that can be developed into arbitrary memory corruption and code execution.\nA:H - Reading EA headers beyond the allocated or mapped buffer can provoke a kernel oops or panic; even failed exploitation still corrupts kernel parsing state and can crash the affected host on repeated access."
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/ntfs/ea.c"
                    ],
                    "versions": [
                        {
                            "version": "c451d34ae14201c2bb40652bf74072a79ff82f7d",
                            "lessThan": "d9d9925de1d8f233cc60d3dc356e12f232f97c15",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c451d34ae14201c2bb40652bf74072a79ff82f7d",
                            "lessThan": "937282f7d15b593d0be765fa2ced164130ec87f7",
                            "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/ntfs/ea.c"
                    ],
                    "versions": [
                        {
                            "version": "7.1",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "7.1",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1.5",
                            "lessThanOrEqual": "7.1.*",
                            "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": "7.1",
                                    "versionEndExcluding": "7.1.5"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "7.1",
                                    "versionEndExcluding": "7.2"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/d9d9925de1d8f233cc60d3dc356e12f232f97c15"
                },
                {
                    "url": "https://git.kernel.org/stable/c/937282f7d15b593d0be765fa2ced164130ec87f7"
                }
            ],
            "title": "ntfs: add bounds check before accessing EA entries",
            "x_generator": {
                "engine": "bippy-1.2.0"
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        }
    }
}