In gcdatasegment in fs/f2fs/gc.c in the Linux kernel before 5.16.3, special files are not considered, leading to a movedatapage NULL pointer dereference.
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-44879.json"
[ { "events": [ { "introduced": "0" }, { "fixed": "5.16.3" } ] } ]