{"id":"CVE-2017-18249","details":"The add_free_nid function in fs/f2fs/node.c in the Linux kernel before 4.12 does not properly track an allocated nid, which allows local users to cause a denial of service (race condition) or possibly have unspecified other impact via concurrent threads.","modified":"2026-03-10T14:23:53.555658Z","published":"2018-03-26T20:29:00.227Z","related":["SUSE-SU-2018:1772-1","SUSE-SU-2018:1816-1","SUSE-SU-2018:1855-1","SUSE-SU-2018:1855-2","SUSE-SU-2019:0470-1","SUSE-SU-2019:0901-1"],"references":[{"type":"WEB","url":"https://usn.ubuntu.com/3932-1/"},{"type":"WEB","url":"https://usn.ubuntu.com/3932-2/"},{"type":"WEB"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html"},{"type":"ADVISORY","url":"http://www.securitytracker.com/id/1041432"},{"type":"FIX","url":"https://github.com/torvalds/linux/commit/30a61ddf8117c26ac5b295e1233eaa9629a94ca3"},{"type":"FIX","url":"http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=30a61ddf8117c26ac5b295e1233eaa9629a94ca3"}],"affected":[{"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"0"},{"fixed":"4.12"}]},{"events":[{"introduced":"0"},{"last_affected":"8.0"}]}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-18249.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}