{"id":"CVE-2017-18257","details":"The __get_data_block function in fs/f2fs/data.c in the Linux kernel before 4.11 allows local users to cause a denial of service (integer overflow and loop) via crafted use of the open and fallocate system calls with an FS_IOC_FIEMAP ioctl.","modified":"2026-03-15T14:26:59.538051Z","published":"2018-04-04T17:29:01.520Z","related":["SUSE-SU-2018:1048-1","SUSE-SU-2018:1173-1","SUSE-SU-2018:1173-2","SUSE-SU-2018:1217-1"],"references":[{"type":"WEB","url":"https://usn.ubuntu.com/3696-1/"},{"type":"WEB","url":"https://usn.ubuntu.com/3696-2/"},{"type":"ADVISORY","url":"https://www.debian.org/security/2018/dsa-4188"},{"type":"FIX","url":"http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b86e33075ed1909d8002745b56ecf73b833db143"},{"type":"FIX","url":"https://github.com/torvalds/linux/commit/b86e33075ed1909d8002745b56ecf73b833db143"}],"affected":[{"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"0"},{"fixed":"4.11"}]},{"events":[{"introduced":"0"},{"last_affected":"9.0"}]}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-18257.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}