{"id":"CVE-2023-2612","details":"Jean-Baptiste Cayrou discovered that the shiftfs file system in the Ubuntu Linux kernel contained a race condition when handling inode locking in some situations. A local attacker could use this to cause a denial of service (kernel deadlock).","modified":"2026-05-04T08:42:45.776746Z","published":"2023-05-31T00:15:10.257Z","withdrawn":"2026-05-04T08:42:45.776746Z","references":[{"type":"WEB","url":"http://packetstormsecurity.com/files/173087/Kernel-Live-Patch-Security-Notice-LSN-0095-1.html"},{"type":"ADVISORY","url":"https://ubuntu.com/security/CVE-2023-2612"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6122-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6123-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6124-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6127-1"},{"type":"FIX","url":"https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/kinetic/commit/?id=02b47547824b1cd0d55c6744f91886f04de8947e"}],"affected":[{"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"20.04"}]},{"events":[{"introduced":"0"},{"last_affected":"22.04"}]},{"events":[{"introduced":"0"},{"last_affected":"22.10"}]}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-2612.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}