{"id":"CVE-2025-71267","title":"fs: ntfs3: fix infinite loop triggered by zero-sized ATTR_LIST","summary":"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) condit…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= be71b5cba2e6485e8959da7a9f9a44461a1bb074 < 9267d99fade76d44d4a133599524031fe684156e","Linux >= be71b5cba2e6485e8959da7a9f9a44461a1bb074 < 976e6a7c51fabf150478decbe8ef5d9a26039b7c","Linux >= be71b5cba2e6485e8959da7a9f9a44461a1bb074 < 8d8c70b57dbeda3eb165c0940b97e85373ca9354","Linux >= be71b5cba2e6485e8959da7a9f9a44461a1bb074 < 7ef219656febf5ae06ae56b1fce47ebd05f92b68","Linux >= be71b5cba2e6485e8959da7a9f9a44461a1bb074 < 9779a6eaaabdf47aa57910d352b398ad742e6a5f","Linux >= be71b5cba2e6485e8959da7a9f9a44461a1bb074 < fd508939dbca5eceefb2d0c2564beb15469572f2","Linux >= be71b5cba2e6485e8959da7a9f9a44461a1bb074 < 06909b2549d631a47fcda249d34be26f7ca1711d","Linux 5.15"],"published":"2026-03-18","updated":"2026-09-08","sourceUpdated":"2026-09-08T08:44:20.942Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-71267","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"}],"tags":["cve.org"],"epss":0.00121,"epssPercentile":0.02219,"ingestedAt":"2026-09-08T15:33:26.994Z","slug":"CVE-2025-71267","body":"## Overview\n\nIn 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.\n\n## Affected\n\n- `Linux >= be71b5cba2e6485e8959da7a9f9a44461a1bb074 < 9267d99fade76d44d4a133599524031fe684156e`\n- `Linux >= be71b5cba2e6485e8959da7a9f9a44461a1bb074 < 976e6a7c51fabf150478decbe8ef5d9a26039b7c`\n- `Linux >= be71b5cba2e6485e8959da7a9f9a44461a1bb074 < 8d8c70b57dbeda3eb165c0940b97e85373ca9354`\n- `Linux >= be71b5cba2e6485e8959da7a9f9a44461a1bb074 < 7ef219656febf5ae06ae56b1fce47ebd05f92b68`\n- `Linux >= be71b5cba2e6485e8959da7a9f9a44461a1bb074 < 9779a6eaaabdf47aa57910d352b398ad742e6a5f`\n- `Linux >= be71b5cba2e6485e8959da7a9f9a44461a1bb074 < fd508939dbca5eceefb2d0c2564beb15469572f2`\n- `Linux >= be71b5cba2e6485e8959da7a9f9a44461a1bb074 < 06909b2549d631a47fcda249d34be26f7ca1711d`\n- `Linux 5.15`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}