{"api_version":"1","generated_at":"2026-06-03T21:14:16+00:00","cve":"CVE-2025-71267","urls":{"html":"https://cve.report/CVE-2025-71267","api":"https://cve.report/api/cve/CVE-2025-71267.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2025-71267","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-71267"},"summary":{"title":"fs: ntfs3: fix infinite loop triggered by zero-sized ATTR_LIST","description":"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.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-03-18 11:16:15","updated_at":"2026-05-21 18:28:40"},"problem_types":["CWE-835"],"metrics":[{"version":"3.1","source":"nvd@nist.gov","type":"Primary","score":"5.5","severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"}}],"references":[{"url":"https://git.kernel.org/stable/c/06909b2549d631a47fcda249d34be26f7ca1711d","name":"https://git.kernel.org/stable/c/06909b2549d631a47fcda249d34be26f7ca1711d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/9267d99fade76d44d4a133599524031fe684156e","name":"https://git.kernel.org/stable/c/9267d99fade76d44d4a133599524031fe684156e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/fd508939dbca5eceefb2d0c2564beb15469572f2","name":"https://git.kernel.org/stable/c/fd508939dbca5eceefb2d0c2564beb15469572f2","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/9779a6eaaabdf47aa57910d352b398ad742e6a5f","name":"https://git.kernel.org/stable/c/9779a6eaaabdf47aa57910d352b398ad742e6a5f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/8d8c70b57dbeda3eb165c0940b97e85373ca9354","name":"https://git.kernel.org/stable/c/8d8c70b57dbeda3eb165c0940b97e85373ca9354","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/7ef219656febf5ae06ae56b1fce47ebd05f92b68","name":"https://git.kernel.org/stable/c/7ef219656febf5ae06ae56b1fce47ebd05f92b68","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/976e6a7c51fabf150478decbe8ef5d9a26039b7c","name":"https://git.kernel.org/stable/c/976e6a7c51fabf150478decbe8ef5d9a26039b7c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2025-71267","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-71267","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected be71b5cba2e6485e8959da7a9f9a44461a1bb074 9267d99fade76d44d4a133599524031fe684156e git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected be71b5cba2e6485e8959da7a9f9a44461a1bb074 976e6a7c51fabf150478decbe8ef5d9a26039b7c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected be71b5cba2e6485e8959da7a9f9a44461a1bb074 8d8c70b57dbeda3eb165c0940b97e85373ca9354 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected be71b5cba2e6485e8959da7a9f9a44461a1bb074 7ef219656febf5ae06ae56b1fce47ebd05f92b68 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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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."}],"providerMetadata":{"dateUpdated":"2026-05-11T21:57:05.561Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/9267d99fade76d44d4a133599524031fe684156e"},{"url":"https://git.kernel.org/stable/c/976e6a7c51fabf150478decbe8ef5d9a26039b7c"},{"url":"https://git.kernel.org/stable/c/8d8c70b57dbeda3eb165c0940b97e85373ca9354"},{"url":"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"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2025-71267","datePublished":"2026-03-18T10:05:04.008Z","dateReserved":"2026-03-17T09:08:18.457Z","dateUpdated":"2026-05-11T21:57:05.561Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-03-18 11:16:15","lastModifiedDate":"2026-05-21 18:28:40","problem_types":["CWE-835"],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":3.6}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"5.15.202","matchCriteriaId":"B0330CE4-09CE-43EF-A9C8-CD49FFD1DC98"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.1.165","matchCriteriaId":"797C7F46-D0BE-4FB8-A502-C5EF8E6B6654"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"6.6.128","matchCriteriaId":"851E9353-6C09-4CC9-877E-E09DB164A3C2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.7","versionEndExcluding":"6.12.75","matchCriteriaId":"BCE16369-98ED-41CF-8995-DFDC10B288D2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.13","versionEndExcluding":"6.18.16","matchCriteriaId":"B4B8CDA9-BADF-4CF5-8B3B-702DE8EEA40B"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.19","versionEndExcluding":"6.19.6","matchCriteriaId":"373EEEDA-FAA1-4FB4-B6ED-DB4DD99DBE67"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2025","CveId":"71267","Ordinal":"1","Title":"fs: ntfs3: fix infinite loop triggered by zero-sized ATTR_LIST","CVE":"CVE-2025-71267","Year":"2025"},"notes":[{"CveYear":"2025","CveId":"71267","Ordinal":"1","NoteData":"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.","Type":"Description","Title":"fs: ntfs3: fix infinite loop triggered by zero-sized ATTR_LIST"}]}}}