CVE-2021-44879
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.
Published Feb 14, 2022 · updated Oct 14, 2026 · linux linux kernel
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.
Timeline
Detection, updates, and resolution for this record.
Feb 14, 2022 · NIST NVD
Detected
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.
Oct 14, 2026 · NIST NVD
Updated
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
- cpe linux/linux kernelversion unspecified
Sources
- CVE.orgCVE-2021-44879
Official CVE identifier
cve.org - FIRST EPSSCVE-2021-44879
30-day exploitation probability 1.2%
first.org - NIST NVDCVE-2021-44879
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.
nvd.nist.gov