{"id":"CVE-2025-71267","revision":"b07baa3f21de4518a339758421bfbfb7","records":[{"revision":"b07baa3f21de4518a339758421bfbfb7","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-71267","aliases":[],"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":0,"publishedAt":"2026-03-18T10:05:04.008+00:00","modifiedAt":"2026-10-15T01:11:22.354+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"fs/ntfs3/attrlist.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"be71b5cba2e6485e8959da7a9f9a44461a1bb074\",\n                            \"lessThan\": \"9267d99fade76d44d4a133599524031fe684156e\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"be71b5cba2e6485e8959da7a9f9a44461a1bb074\",\n                            \"lessThan\": \"976e6a7c51fabf150478decbe8ef5d9a26039b7c\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"be71b5cba2e6485e8959da7a9f9a44461a1bb074\",\n                            \"lessThan\": \"8d8c70b57dbeda3eb165c0940b97e85373ca9354\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"be71b5cba2e6485e8959da7a9f9a44461a1bb074\",\n                            \"lessThan\": \"7ef219656febf5ae06ae56b1fce47ebd05f92b68\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"be71b5cba2e6485e8959da7a9f9a44461a1bb074\",\n                            \"lessThan\": \"9779a6eaaabdf47aa57910d352b398ad742e6a5f\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"be71b5cba2e6485e8959da7a9f9a44461a1bb074\",\n                            \"lessThan\": \"fd508939dbca5eceefb2d0c2564beb15469572f2\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"be71b5cba2e6485e8959da7a9f9a44461a1bb074\",\n                            \"lessThan\": \"06909b2549d631a47fcda249d34be26f7ca1711d\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"fs/ntfs3/attrlist.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"5.15\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"5.15\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.202\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.165\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.128\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.75\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.16\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.19.6\",\n                            \"lessThanOrEqual\": \"6.19.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.0\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/9267d99fade76d44d4a133599524031fe684156e","https://git.kernel.org/stable/c/976e6a7c51fabf150478decbe8ef5d9a26039b7c","https://git.kernel.org/stable/c/8d8c70b57dbeda3eb165c0940b97e85373ca9354","https://git.kernel.org/stable/c/7ef219656febf5ae06ae56b1fce47ebd05f92b68","https://git.kernel.org/stable/c/9779a6eaaabdf47aa57910d352b398ad742e6a5f","https://git.kernel.org/stable/c/fd508939dbca5eceefb2d0c2564beb15469572f2","https://git.kernel.org/stable/c/06909b2549d631a47fcda249d34be26f7ca1711d"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-71267","license":"CVE Program Terms of Use","key":"cve-program:CVE-2025-71267","identifiers":["CVE-2025-71267"]},"retained":false,"historicalAffected":[]}],"coverage":[]}