{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-89611", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-11T19:38:34.734Z", "datePublished": "2026-09-11T19:45:12.646Z", "dateUpdated": "2026-09-11T19:45:12.646Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-09-11T19:45:12.646Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nntfs: validate non-resident attribute offsets\n\nntfs_attr_update_meta() shifts the attribute name when converting between\nnon-sparse and sparse attributes. Converting to sparse also adds the\ncompressed_size field before the name and mapping pairs, requiring eight\nadditional bytes in the attribute record.\n\nHowever, the validator does not check that name_offset is within safe\nboundaries for these operations or that the additional space is available.\nA malicious MFT record could set name_offset such that:\n\n1. The name is positioned at the very end of a non-sparse attribute.\n Converting to sparse would shift the name forward by 8 bytes,\n writing beyond the attribute boundary.\n\n2. The name overlaps with the mapping pairs, causing corruption during\n conversion.\n\nAdd validation to ensure:\n- For named attributes, name_offset is within valid bounds\n- Name does not extend beyond the attribute or overlap with mapping pairs\n- For non-sparse, non-compressed attributes, eight bytes are available\n after mapping_pairs_offset for the compressed_size field\n\nThe space check also covers unnamed attributes, for which name_offset = 0\nis valid and no name range needs to be checked."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/ntfs/attrib.c"], "versions": [{"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "cd7b3dc7557faadeea626034e3bac68a449851ef", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "a83e82b0ec3ae523028e24813f23f18b43e8fc1c", "status": "affected", "versionType": "git"}, {"version": "0", "lessThan": "7.2.4", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/ntfs/attrib.c"], "versions": [{"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:*:*:*:*:*:*:*:*", "versionEndExcluding": "7.2.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "7.3-rc1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/cd7b3dc7557faadeea626034e3bac68a449851ef"}, {"url": "https://git.kernel.org/stable/c/a83e82b0ec3ae523028e24813f23f18b43e8fc1c"}], "title": "ntfs: validate non-resident attribute offsets", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["fs/ntfs/attrib.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "cd7b3dc7557faadeea626034e3bac68a449851ef", "status": "affected", "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "versionType": "git"}, {"lessThan": "a83e82b0ec3ae523028e24813f23f18b43e8fc1c", "status": "affected", "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "versionType": "git"}, {"lessThan": "7.2.4", "status": "affected", "version": "0", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["fs/ntfs/attrib.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.4", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3-rc1", "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: validate non-resident attribute offsets\n\nntfs_attr_update_meta() shifts the attribute name when converting between\nnon-sparse and sparse attributes. Converting to sparse also adds the\ncompressed_size field before the name and mapping pairs, requiring eight\nadditional bytes in the attribute record.\n\nHowever, the validator does not check that name_offset is within safe\nboundaries for these operations or that the additional space is available.\nA malicious MFT record could set name_offset such that:\n\n1. The name is positioned at the very end of a non-sparse attribute.\n Converting to sparse would shift the name forward by 8 bytes,\n writing beyond the attribute boundary.\n\n2. The name overlaps with the mapping pairs, causing corruption during\n conversion.\n\nAdd validation to ensure:\n- For named attributes, name_offset is within valid bounds\n- Name does not extend beyond the attribute or overlap with mapping pairs\n- For non-sparse, non-compressed attributes, eight bytes are available\n after mapping_pairs_offset for the compressed_size field\n\nThe space check also covers unnamed attributes, for which name_offset = 0\nis valid and no name range needs to be checked."}], "id": "CVE-2026-89611", "lastModified": "2026-09-11T20:19:46.203", "metrics": {}, "published": "2026-09-11T20:19:46.203", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a83e82b0ec3ae523028e24813f23f18b43e8fc1c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/cd7b3dc7557faadeea626034e3bac68a449851ef"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: Linux kernel: NTFS driver memory corruption due to improper attribute offset validation", "id": "2532167", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2532167"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.7", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:H", "status": "draft"}, "cwe": "CWE-787", "details": ["A flaw was found in the Linux kernel. The NTFS file system driver does not properly validate non-resident attribute offsets when converting between sparse and non-sparse attributes. A local attacker could craft a malicious Master File Table (MFT) record, which could lead to writing data beyond allocated memory boundaries or overlapping with other critical data. This memory corruption could result in a denial of service (DoS) or system instability."], "name": "CVE-2026-89611", "public_date": "2026-09-11T19:45:12Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-89611\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-89611\nhttps://git.kernel.org/stable/c/a83e82b0ec3ae523028e24813f23f18b43e8fc1c\nhttps://git.kernel.org/stable/c/cd7b3dc7557faadeea626034e3bac68a449851ef"], "threat_severity": "Moderate"}

{}