{"id":"CVE-2022-49762","summary":"ntfs: check overflow when iterating ATTR_RECORDs","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nntfs: check overflow when iterating ATTR_RECORDs\n\nKernel iterates over ATTR_RECORDs in mft record in ntfs_attr_find(). \nBecause the ATTR_RECORDs are next to each other, kernel can get the next\nATTR_RECORD from end address of current ATTR_RECORD, through current\nATTR_RECORD length field.\n\nThe problem is that during iteration, when kernel calculates the end\naddress of current ATTR_RECORD, kernel may trigger an integer overflow bug\nin executing `a = (ATTR_RECORD*)((u8*)a + le32_to_cpu(a-\u003elength))`.  This\nmay wrap, leading to a forever iteration on 32bit systems.\n\nThis patch solves it by adding some checks on calculating end address\nof current ATTR_RECORD during iteration.","modified":"2026-04-03T13:14:30.528471722Z","published":"2025-05-01T14:09:02.952Z","related":["SUSE-SU-2025:01966-1","SUSE-SU-2025:02173-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49762.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/45683723f6b53e39e8a4cec0894e61fd6ec71989"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5559eb5809353a83a40a1e4e7f066431c7b83020"},{"type":"WEB","url":"https://git.kernel.org/stable/c/63095f4f3af59322bea984a6ae44337439348fe0"},{"type":"WEB","url":"https://git.kernel.org/stable/c/785b2af9654b8beac55644e36da0085c5d776361"},{"type":"WEB","url":"https://git.kernel.org/stable/c/86f36de14dce5802856bb7a5921d74439db00b64"},{"type":"WEB","url":"https://git.kernel.org/stable/c/957732a09c3828267c2819d31c425aa793dd475b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b612f924f296408d7d02fb4cd01218afd4ed7184"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b63ddb3ba61e2d3539f87e095c881e552bc45dab"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49762.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-49762"},{"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":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2"},{"fixed":"5559eb5809353a83a40a1e4e7f066431c7b83020"},{"fixed":"86f36de14dce5802856bb7a5921d74439db00b64"},{"fixed":"45683723f6b53e39e8a4cec0894e61fd6ec71989"},{"fixed":"b612f924f296408d7d02fb4cd01218afd4ed7184"},{"fixed":"957732a09c3828267c2819d31c425aa793dd475b"},{"fixed":"b63ddb3ba61e2d3539f87e095c881e552bc45dab"},{"fixed":"785b2af9654b8beac55644e36da0085c5d776361"},{"fixed":"63095f4f3af59322bea984a6ae44337439348fe0"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49762.json"}}],"schema_version":"1.7.5"}