{"id":"CVE-2021-44879","details":"In gc_data_segment in fs/f2fs/gc.c in the Linux kernel before 5.16.3, special files are not considered, leading to a move_data_page NULL pointer dereference.","modified":"2026-03-13T05:15:06.244280Z","published":"2022-02-14T12:15:15.697Z","related":["SUSE-SU-2022:0757-1","SUSE-SU-2022:0759-1","SUSE-SU-2022:0761-1","SUSE-SU-2022:0765-1","SUSE-SU-2022:0766-1","SUSE-SU-2022:0767-1","SUSE-SU-2022:0768-1","SUSE-SU-2022:1037-1","SUSE-SU-2022:1038-1","SUSE-SU-2022:1039-1","SUSE-SU-2022:1257-1","SUSE-SU-2022:2520-1","SUSE-SU-2022:2615-1","openSUSE-SU-2022:0768-1","openSUSE-SU-2022:1037-1","openSUSE-SU-2022:1039-1"],"references":[{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2024/01/msg00005.html"},{"type":"WEB","url":"https://lore.kernel.org/linux-f2fs-devel/20211206144421.3735-3-chao%40kernel.org/T/"},{"type":"ADVISORY","url":"https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.3"},{"type":"REPORT","url":"https://bugzilla.kernel.org/show_bug.cgi?id=215231"},{"type":"FIX","url":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9056d6489f5a41cfbb67f719d2c0ce61ead72d9f"}],"affected":[{"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-44879.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"fixed":"5.16.3"}]}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"}]}