{"id":"CVE-2021-4148","details":"A vulnerability was found in the Linux kernel's block_invalidatepage in fs/buffer.c in the filesystem. A missing sanity check may allow a local attacker with user privilege to cause a denial of service (DOS) problem.","modified":"2026-03-13T03:12:30.670773Z","published":"2022-03-23T20:15:09.947Z","related":["SUSE-SU-2024:2008-1","SUSE-SU-2024:2019-1","SUSE-SU-2024:2189-1","SUSE-SU-2024:2190-1","SUSE-SU-2025:0231-1"],"references":[{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2026487"},{"type":"FIX","url":"https://lkml.org/lkml/2021/9/12/323"},{"type":"FIX","url":"https://lkml.org/lkml/2021/9/17/1037"}],"affected":[{"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"0"},{"fixed":"5.14.16"}]},{"events":[{"introduced":"0"},{"last_affected":"35"}]}],"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-4148.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}