CVE-2021-44879: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 1.2% chance of exploitation in the next 30 days.

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.

Affected products

• Linux Linux Kernel: before 5.16.3 (fixed in 5.16.3)

Published 2022-02-14. Last modified 2026-06-17.