{"id":"AZL-8577","summary":"CVE-2021-44879 affecting package kernel for versions less than 5.15.26.1-1","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":"2026-04-01T05:23:33.790848Z","published":"2022-02-14T12:15:15Z","upstream":["CVE-2021-44879"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-44879"}],"affected":[{"package":{"name":"kernel","ecosystem":"Azure Linux:2","purl":"pkg:rpm/azure-linux/kernel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.26.1-1"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-8577.json"}}],"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"}]}