CVE-2025-71267

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-71267", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-03-17T09:08:18.457Z", "datePublished": "2026-03-18T10:05:04.008Z", "dateUpdated": "2026-11-10T12:39:44.199Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T21:57:05.561Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs: ntfs3: fix infinite loop triggered by zero-sized ATTR_LIST\n\nWe found an infinite loop bug in the ntfs3 file system that can lead to a\nDenial-of-Service (DoS) condition.\n\nA malformed NTFS image can cause an infinite loop when an ATTR_LIST attribute\nindicates a zero data size while the driver allocates memory for it.\n\nWhen ntfs_load_attr_list() processes a resident ATTR_LIST with data_size set\nto zero, it still allocates memory because of al_aligned(0). This creates an\ninconsistent state where ni->attr_list.size is zero, but ni->attr_list.le is\nnon-null. This causes ni_enum_attr_ex to incorrectly assume that no attribute\nlist exists and enumerates only the primary MFT record. When it finds\nATTR_LIST, the code reloads it and restarts the enumeration, repeating\nindefinitely. The mount operation never completes, hanging the kernel thread.\n\nThis patch adds validation to ensure that data_size is non-zero before memory\nallocation. When a zero-sized ATTR_LIST is detected, the function returns\n-EINVAL, preventing a DoS vulnerability."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/ntfs3/attrlist.c"], "versions": [{"version": "be71b5cba2e6485e8959da7a9f9a44461a1bb074", "lessThan": "9267d99fade76d44d4a133599524031fe684156e", "status": "affected", "versionType": "git"}, {"version": "be71b5cba2e6485e8959da7a9f9a44461a1bb074", "lessThan": "976e6a7c51fabf150478decbe8ef5d9a26039b7c", "status": "affected", "versionType": "git"}, {"version": "be71b5cba2e6485e8959da7a9f9a44461a1bb074", "lessThan": "8d8c70b57dbeda3eb165c0940b97e85373ca9354", "status": "affected", "versionType": "git"}, {"version": "be71b5cba2e6485e8959da7a9f9a44461a1bb074", "lessThan": "7ef219656febf5ae06ae56b1fce47ebd05f92b68", "status": "affected", "versionType": "git"}, {"version": "be71b5cba2e6485e8959da7a9f9a44461a1bb074", "lessThan": "9779a6eaaabdf47aa57910d352b398ad742e6a5f", "status": "affected", "versionType": "git"}, {"version": "be71b5cba2e6485e8959da7a9f9a44461a1bb074", "lessThan": "fd508939dbca5eceefb2d0c2564beb15469572f2", "status": "affected", "versionType": "git"}, {"version": "be71b5cba2e6485e8959da7a9f9a44461a1bb074", "lessThan": "06909b2549d631a47fcda249d34be26f7ca1711d", "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/ntfs3/attrlist.c"], "versions": [{"version": "5.15", "status": "affected"}, {"version": "0", "lessThan": "5.15", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.202", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.165", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.128", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.75", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.16", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.6", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0", "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": "5.15", "versionEndExcluding": "5.15.202"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "6.1.165"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", 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"https://git.kernel.org/stable/c/7ef219656febf5ae06ae56b1fce47ebd05f92b68"}, {"url": "https://git.kernel.org/stable/c/9779a6eaaabdf47aa57910d352b398ad742e6a5f"}, {"url": "https://git.kernel.org/stable/c/fd508939dbca5eceefb2d0c2564beb15469572f2"}, {"url": "https://git.kernel.org/stable/c/06909b2549d631a47fcda249d34be26f7ca1711d"}], "title": "fs: ntfs3: fix infinite loop triggered by zero-sized ATTR_LIST", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"x_adpType": "supplier", "providerMetadata": {"orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "shortName": "siemens-SADP", "dateUpdated": "2026-11-10T12:39:44.199Z"}, "affected": [{"vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)", "versions": [{"status": "affected", "version": "V3.1.6", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)", "versions": [{"status": "affected", 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This creates an\ninconsistent state where ni->attr_list.size is zero, but ni->attr_list.le is\nnon-null. This causes ni_enum_attr_ex to incorrectly assume that no attribute\nlist exists and enumerates only the primary MFT record. When it finds\nATTR_LIST, the code reloads it and restarts the enumeration, repeating\nindefinitely. The mount operation never completes, hanging the kernel thread.\n\nThis patch adds validation to ensure that data_size is non-zero before memory\nallocation. When a zero-sized ATTR_LIST is detected, the function returns\n-EINVAL, preventing a DoS vulnerability."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nfs: ntfs3: corrige bucle infinito provocado por ATTR_LIST de tama\u00f1o cero\n\nSe encontr\u00f3 un error de bucle infinito en el sistema de archivos ntfs3 que puede llevar a una condici\u00f3n de Denegaci\u00f3n de Servicio (DoS).\n\nUna imagen NTFS malformada puede causar un bucle infinito cuando un atributo ATTR_LIST indica un tama\u00f1o de datos cero mientras el controlador asigna memoria para ello.\n\nCuando ntfs_load_attr_list() procesa un ATTR_LIST residente con data_size establecido en cero, todav\u00eda asigna memoria debido a al_aligned(0). Esto crea un estado inconsistente donde ni->attr_list.size es cero, pero ni->attr_list.le no es nulo. Esto hace que ni_enum_attr_ex asuma incorrectamente que no existe ninguna lista de atributos y enumere solo el registro MFT primario. Cuando encuentra ATTR_LIST, el c\u00f3digo lo recarga y reinicia la enumeraci\u00f3n, repiti\u00e9ndose indefinidamente. La operaci\u00f3n de montaje nunca se completa, colgando el hilo del kernel.\n\nEste parche a\u00f1ade validaci\u00f3n para asegurar que data_size no sea cero antes de la asignaci\u00f3n de memoria. Cuando se detecta un ATTR_LIST de tama\u00f1o cero, la funci\u00f3n devuelve -EINVAL, previniendo una vulnerabilidad de DoS."}], "id": "CVE-2025-71267", "lastModified": "2026-11-10T13:18:09.560", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2026-03-18T11:16:15.720", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/06909b2549d631a47fcda249d34be26f7ca1711d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7ef219656febf5ae06ae56b1fce47ebd05f92b68"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8d8c70b57dbeda3eb165c0940b97e85373ca9354"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/9267d99fade76d44d4a133599524031fe684156e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/976e6a7c51fabf150478decbe8ef5d9a26039b7c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/9779a6eaaabdf47aa57910d352b398ad742e6a5f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/fd508939dbca5eceefb2d0c2564beb15469572f2"}, {"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "url": "https://cert-portal.siemens.com/productcert/html/ssa-019113.html"}, {"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "url": "https://cert-portal.siemens.com/productcert/html/ssa-082556.html"}, {"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "url": "https://cert-portal.siemens.com/productcert/html/ssa-457936.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-835"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: fs: ntfs3: fix infinite loop triggered by zero-sized ATTR_LIST", "id": "2448599", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2448599"}, "csaw": false, "details": ["No description is available for this CVE."], "name": "CVE-2025-71267", "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": "2026-03-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-71267\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-71267\nhttps://lore.kernel.org/linux-cve-announce/2026031816-CVE-2025-71267-2a56@gregkh/T"]}

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