{"id":"CVE-2025-71267","summary":"fs: ntfs3: fix infinite loop triggered by zero-sized ATTR_LIST","details":"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-\u003eattr_list.size is zero, but ni-\u003eattr_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.","modified":"2026-04-02T13:04:59.432252Z","published":"2026-03-18T10:05:04.008Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/71xxx/CVE-2025-71267.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/06909b2549d631a47fcda249d34be26f7ca1711d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7ef219656febf5ae06ae56b1fce47ebd05f92b68"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8d8c70b57dbeda3eb165c0940b97e85373ca9354"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9267d99fade76d44d4a133599524031fe684156e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/976e6a7c51fabf150478decbe8ef5d9a26039b7c"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9779a6eaaabdf47aa57910d352b398ad742e6a5f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/fd508939dbca5eceefb2d0c2564beb15469572f2"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/71xxx/CVE-2025-71267.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-71267"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"be71b5cba2e6485e8959da7a9f9a44461a1bb074"},{"fixed":"9267d99fade76d44d4a133599524031fe684156e"},{"fixed":"976e6a7c51fabf150478decbe8ef5d9a26039b7c"},{"fixed":"8d8c70b57dbeda3eb165c0940b97e85373ca9354"},{"fixed":"7ef219656febf5ae06ae56b1fce47ebd05f92b68"},{"fixed":"9779a6eaaabdf47aa57910d352b398ad742e6a5f"},{"fixed":"fd508939dbca5eceefb2d0c2564beb15469572f2"},{"fixed":"06909b2549d631a47fcda249d34be26f7ca1711d"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-71267.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.15.0"},{"fixed":"5.15.202"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.165"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.128"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.75"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.16"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"6.19.6"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-71267.json"}}],"schema_version":"1.7.5"}