{"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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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["fs/ntfs/ea.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "d9d9925de1d8f233cc60d3dc356e12f232f97c15", "status": "affected", "version": "c451d34ae14201c2bb40652bf74072a79ff82f7d", "versionType": "git"}, {"lessThan": "937282f7d15b593d0be765fa2ced164130ec87f7", "status": "affected", "version": "c451d34ae14201c2bb40652bf74072a79ff82f7d", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["fs/ntfs/ea.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "7.1"}, {"lessThan": "7.1", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.5", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "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."}], "id": "CVE-2026-72208", "lastModified": "2026-08-18T07:16:54.163", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}]}, "published": "2026-08-15T06:21:39.510", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/937282f7d15b593d0be765fa2ced164130ec87f7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d9d9925de1d8f233cc60d3dc356e12f232f97c15"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: ntfs: add bounds check before accessing EA entries", "id": "2516611", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2516611"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-125", "details": ["A flaw was found in the Linux kernel's NTFS file system driver. A missing bounds check when processing Extended Attribute (EA) entries in the `ntfs_ea_lookup` and `ntfs_listxattr` functions could allow a local attacker to craft a malicious NTFS file system. When this file system is mounted, it could lead to an out-of-bounds read, potentially causing a system crash (Denial of Service) or information disclosure."], "name": "CVE-2026-72208", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-08-15T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-72208\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-72208\nhttps://lore.kernel.org/linux-cve-announce/2026081545-CVE-2026-72208-c87d@gregkh/T"], "threat_severity": "Moderate"}