CVE-2021-44879

MediumCVSS 5.5/10Last modified Oct 14, 2026

Description

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.

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-476

Affected software

VendorProductVersions
n/an/an/a
SiemensRUGGEDCOM RST2428P—
SiemensSCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family—
SiemensSCALANCE XCM-/XRM-/XCH-/XRH-300 family—
SiemensSIMATIC S7-1500 CPU 1518-4 PN/DP MFP>= V3.1.0, < V3.1.5
SiemensSIMATIC S7-1500 CPU 1518-4 PN/DP MFP>= V3.1.0, < V3.1.5
SiemensSIMATIC S7-1500 CPU 1518F-4 PN/DP MFP>= V3.1.0, < V3.1.5
SiemensSIMATIC S7-1500 CPU 1518F-4 PN/DP MFP>= V3.1.0, < V3.1.5
SiemensSIMATIC S7-1500 TM MFP - GNU/Linux subsystem< V1.1
SiemensSIPLUS S7-1500 CPU 1518-4 PN/DP MFP>= V3.1.0, < V3.1.5

References

Timeline

Published
Feb 14, 2022
Last modified
Oct 14, 2026
NVD status
Modified

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CVE-2021-44879: Medium severity, CVSS 5.5 | Vulnix