CVE-2021-44879

kernel: NULL pointer dereference in folio_mark_dirty() via a crafted f2fs image

Published Feb 13, 2022 CVSS 3.1 · 5.5 Medium EPSS 1.5% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-3710-1 linux security update
Debian DLA Debian DLA DLA-3711-1 linux-5.10 security update
Debian DSA Debian DSA DSA-5594-1 linux security update
Ubuntu USN Ubuntu USN USN-5302-1 Linux kernel (OEM) vulnerabilities
Ubuntu USN Ubuntu USN USN-5383-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6681-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6681-2 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6681-3 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6681-4 Linux kernel (AWS) vulnerabilities
Ubuntu USN Ubuntu USN USN-6716-1 Linux kernel (Azure) vulnerabilities
Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Oct 14, 2026, 11:58 AM
Reserved
Dec 13, 2021, 12:00 AM
Status
Modified
Published
Feb 14, 2022, 12:15 PM
Modified
Oct 14, 2026, 12:17 PM
Severity
Moderate
Public date
Feb 12, 2022, 12:00 AM